Diamonds & Jewelry Care Blog

Monday, April 03, 2006

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What is the difference between diamonds, cubic zirconia and moissanite?

Diamonds, Cubic Zirconia and Moissanite: How They Differ
By Jill Renee

Diamonds are known for their sparkle and brilliance making them popular in jewelry as their shine is unmatched by any other gemstone. Symbolizing eternal love, diamonds are popular in engagement rings and wedding jewelry. Because of their hardness, diamonds are also used to cut and wear away other substances and are used for industrial purposes in drills, saws and engraving tools.

The jewelry and industrial uses for diamonds created a demand for the stones and also prompted the creation of imitations which mimic the qualities of a diamond with some differences. Cubic zirconia and moissanite are two of these that are popular in jewelry.
Both are diamond simulants meaning non-diamond materials are used to create them and simulate the properties of a real diamond. Both are less expensive than a diamond and have their advantages and drawbacks.

Cubic Zirconia vs. Diamonds
Cubic zirconia (or CZ) has been used in jewelry since the 1970’s. Cubic zirconias are more reflective than glass or crystal so they sparkle like diamonds. A CZ is not as hard as a diamond but weighs more, a fact that does not lessen cubic zirconias appeal since traditional carat sizes are small enough that their weight isn’t perceived as greater. The majority of diamonds have inclusions, or flaws (these are measured by the Clarity component of the four C’s of diamond buying.) CZs are optically flawless and they are colorless, another characteristics that is found in few diamonds as most diamonds have some yellow shading to them.

Moissanite vs. Diamonds
Moissanite is the jewelry name for silicon carbide and was introduced as a gemstone in the late 1990’s. Moissanites are more refractive than diamonds meaning they shine more brilliantly making this one of the easiest ways to tell it is not a diamond.
A moissanite is not as hard as a diamond but is harder than a cubic zirconia and it weighs less than a CZ. Moissanites do have inclusions like diamonds and may have green shading to them.

Both cubic zirconia and moissanite have a close visual resemblance to diamonds – they offer the luster and fire of diamonds while being mostly colorless and can be cut in the same shapes as diamonds. In jewelry making cubic zirconia and moissanite are not as popular so they are harder to find in specific cuts and are not regularly found in jewelry stores or traditional online jewelry sellers.

Tuesday, March 28, 2006

We have moved. Please view our jewelry blog at a new address: http://www.danforthdiamond.com/blog/

DeBeers and Beyond: The History of the International Diamond Cartel

Diamonds are forever
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A gemstone is the ultimate luxury product. It has no material use. Men and women desire to have diamonds not for what they [diamonds] can do but for what they desire.1

To hear these words from a person who attributes his entire wealth and power to the trade of diamonds illustrates the peculiar nature of the diamond market: Jewelry diamonds are unjustifiably expensive, given they are not actually scarce and would fetch a price of $2 to $30 if put to industrial use. Still, by appealing to the customers' sentiment, diamonds are one of the most precious luxury items and enjoy almost global acceptance. This fact is often attributed to the history of one company. DeBeers, founded by Cecil Rhodes in 1870. Debeers has been a highly successful and effective controller of the diamond market, having developed a unique purchasing and marketing cartel that has influenced prices in the market virtually undisturbed for almost a century. Lately, however, there are signs that more and more players seem ready to challenge DeBeers' dominance, and ever since, DeBeers has struggled to keep the cartel intact.

Diamonds and the Cartel

For centuries, the only two countries producing diamonds were India and Brazil. Up to the middle of the 19th century, the world supply of diamonds was so scarce that even monarchs and noblemen found it hard to get hold of them. The idea of making diamonds available to the general public seemed unthinkable. When diamonds were first found in South Africa in 1867, however, supply increased rapidly, although the notion of diamonds as a precious and rare commodity remain to the present day.

Similar to the gold miners in California, diamond miners in South Africa tended to rush to the latest findings.2 As a matter of principle, diamond miners preferred to work by themselves. However, the scarcity of resourceful land and the need for a minimum of common infrastructure forced them to live together in limited areas. In order to fight off latecomers and to settle disputes, Diggers Committees were formed and gave out claims in a region. Each digger would be allocated one claim, or, at most, two.

Since digging diamonds on a larger scale was virtually impossible for individuals, small claimholders soon merged into larger ones. Moreover, equipment for digging, hauling the dirt up and pumping water out of the mines was purchased or rented by groups of miners, thereby forced to cooperate even more intensively.3 Cecil Rhodes was one of the first businessmen to rent out pumping equipment and soon realized that he had tapped a vast market potential. He reinvested the initial proceeds from equipment rental in acquiring claims. By 1880, he held a large enough share of diamond claims to justify a separate company purely concerned with managing the mines: thus DeBeers Mining Company was created. By 1887, the company was the sole owner of South African diamond mines.

Concurrently, Cecil Rhodes took control of the distribution channels through "The Diamond Syndicate," an alliance of merchants in Kimberley who abided to Rhodes' terms of business, recognizing that their own interests and DeBeers were compatible in that both aimed for high prices and a notion of scarcity.

You can read the rest of the story of DeBeers Diamond Cartel

Monday, March 13, 2006

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How to Care for Your Jewelry

Jewelry is a substantial investment and therefore great care should be taken to keep your fine metals and gems looking bright and sparkling.

· Remove your jewelry when cooking, deep cleaning or gardening. Chlorine can damage and discolor the mounting on your jewelry.

· Remove jewelry before showering. Soap can cause a film to form on karat gold jewelry making it appear dull and dingy. By preventing the formation of this film you reduce the occasions your jewelry will need to be cleaned.

· For protection of your jewelry and for safety reasons jewelry should be removed when working around machinery with movable parts.

· Have your fine jewelry inspected annually by a professional. Inspection will insure that deep crevices are cleaned and settings are solid and secure preventing loss of valuable stones.

· Clean your jewelry as needed using jewelry cleaner made especially for this purpose or with a non abrasive soap or mixture of ammonia and water mixture. Use caution when cleaning jewelry to avoid damage to your precious metal. A soft chamois cloth is an effective way to keep your pieces shining and your jeweler can give you specific advice as to which commercial cleaners are available and suitable for your needs.

· A soft, discarded toothbrush is ideal for cleaning jewelry as the bristles will get into tiny spaces where dirt likes to hide and the brush accustomed to cleaning delicate surfaces is designed to clean without scratching.

· Sterling silver will oxidize and tarnish unless covered with a protective layer of rhodium to help prevent tarnishing. Over time this covering may breakdown. Commercial polish will restore the original color and luster. However, you may also clean sterling silver by mixing mild soap, water and a drop of ammonia and wipe with a clean soft cloth. Never use vinegar on sterling silver.

· To clean stainless steel simply moisten a cloth with undiluted white or cider vinegar and wipe clean.

· Take special care of silver jewelry making sure it does not come into contact with swimming pools, hot tubs or the ocean. Silver will react with chlorine causing discoloration and then there is also the issue of loss at a public pool or in your own filter system.

· Pearls should be kept away from chemicals including hairspray, perfume and detergents. Use fragrance and hair products prior to donning pearls. Pearls when cleaned should be done so with a mild soapy water solution and rinsed well, never put in an ultrasonic cleaner. Before storing you pearls, wipe them with a soft, damp cloth to ensure that they remain free from any harmful buildup. Pearls are easily scratched and should be stored in a soft cloth pouch or in a separate lined jewelry box to avoid being bumped by other jewelry. If you wear your pearl strand several times a week, consider having your jeweler restring it once a year to prevent strand breakage. Pearls aren’t just for formal occasions they look just as fashionable when you’re having a “dress down” day.

Monday, February 06, 2006

We have moved. Please view our jewelry blog at a new address: http://www.danforthdiamond.com/blog/

Care for Diamond Jewelry

Caring for Diamond Rings jewelery
Does Your Diamond Ring Still Sparkle? Care & Cleaning of Diamond Rings
We are often asked how to care for and clean diamond rings. We have to consider the diamonds, the ring mount, and any other stones apart from diamonds. Other Stones
On this page, we will limit ourselves to the care of the diamonds and mount, for information about any other gemstones, please refer to our A to Z of Gemstones page.

General Diamond Jewelry Care
Diamonds are extremely hard and durable, but there are things which can damage them, so it is important to know what to avoid. Diamonds can be broken by a sharp impact on a hard surface, so dropping a ring onto a concrete floor could cause the diamond to cleave, especially if it struck at precisely the wrong place. This is not very likely to happen, and diamonds are so durable, that you may get away with dropping it onto concrete 1,000 times without damage. We would not recommend the experiment! Rings do come in for a large amount of wear and tear when they are on fingers, and an accidental blow on metal or other hard surface could have a similar or greater effect than being dropped.

This sort of collision damage is more likely to wear or break the ring mount, so it is worth inspecting the ring carefully after any hard knock to ensure that any claws are still intact and the stone is tight.

One of the worst things for causing wear and damage to diamonds is allowing them to rub and knock against other diamonds. This will cause abrasion and chipping, particularly around the girdle of the stone. If you wear several rings next to each other, it is better if there is a metal to metal contact between them. Although this will cause wear, it can be repaired fairly easily. We do see a number of older ladies, who have acquired a number of rings over a long period of time, wearing two, three or more rings on one finger. We even had one customer who had seven diamond rings on one finger. They were all quite large, and the thought of the damage to the diamonds made us cringe. This particular little old lady knew that her enjoyment of her rings was more important than the cost of any damage to them.

A number of years ago, we sold a large cubic zirconia ring to a lady, who brought it back less than six months later with all three stones almost worn away and looking very dull. We replace it, but advised her not to wear against her other diamond rings.

Reasonable care should be taken not to catch diamond settings with filaments of thread, particularly strong synthetic threads which may bend claws, and loosen the stones they are meant to be securing.

It is worth having your ring checked by a jeweller occasionally for wear or damage to the settings, particularly with claw set rings. Of course, you can do this yourself, but most jewellers have suitable magnifying glasses which make close inspection much easier. If you notice a stone which is loose, this should definitely be checked by a jeweller as soon as possible.

Cleaning Diamond Jewelry
When jewelery is worn next to the skin, it will become covered and clogged in oily debris mainly composed of dead skin. Dust and grit become lodged in this. Wearing rings while washing up can also allow a greasy film to coat the backs of stones (diamonds just love grease!), and the inside of settings.

The main purpose of cleaning diamond rings is to remove all this greasy debris, and allow light to enter and leave the diamonds, restoring their sparkle. Nothing you would ever use to clean your ring is likely to damage the diamonds without damaging the mount, so we will describe how to clean the metal part of rings. The mount will normally be made of gold, preferably 18 carat gold, of platinum, or of a mixture of the two. Other gold alloys are not as suitable, for an explanation of this, please refer to our Durability of Gold Alloys page.

The Ring Mount
Most gold or platinum jewelery can be cleaned in warm soapy water, detergent is equally good. It can be gently brushed if necessary using an old tooth brush especially to remove debris behind the stones. It is better to avoid cleaning agents containing abrasives, including toothpaste. Some people swear by gin. All alcohol will dissolve grease, but this is a waste of good gin.

Gold Alloys

High carat alloys such as 18 carat and above, will not usually become tarnished, and will not be harmed by household chemicals.
Lower carat gold can be harmed by contact with chlorine based bleach and cleaning chemicals.

Chlorine can cause stress corrosion cracking in lower gold alloys of 14 carat and below, although it will be worse if the jewelery contains porosity through less than perfect manufacturing treatments. Because of this it is best to avoid cleaning your jewelery with bleach or other cleaners containing chlorine, and also to avoid wearing it when in contact with bleach.

Proprietary jewelery Cleaner

Most jewelers now sell tubs of "jewelery Cleaner". Although it will clean your jewelery, it will not necessarily work any better than the warm soapy water we recommend above.

Ultrasonic Cleaners
jewelery manufacturers and workshops use ultrasonic cleaning tanks. In these, the actual cleaning is performed by the cleaning solution, usually a mixture of ammonia and detergent, the ultrasonics merely provide the agitation to speed up the process. Small domestic ultrasonic cleaners are now available, and many jewelery stores sell them as gift items. We are not convinced that they work better than soap, water and a brush.

Tarnish

Low carat gold alloys will tarnish or discolour through exposure to air. This tarnish is not removed by ordinary cleaning. To remove it will usually require the application of gentle abrasive to rub away the layer of tarnished gold. In jewelery workshops, acid may to used to dissolve the tarnish layer, but this is not practical at home.

The best way to avoid tarnish is to buy 18 carat gold jewelery, which hardly ever becomes tarnished.

Silver

It is unusual for diamonds to be set in silver as it is too soft to be used for diamond rings.

Repolishing
If jewelery with polished surfaces becomes matt and dull over long periods of wear, it can usually be repolished, but we believe that this is not really necessary. Items like diamond rings are bound to become scratched, but we believe that, particularly with high carat golds and platinum, the intrinsic colour of the metal retains its beauty even when scratched and worn.

Gemstone Settings

It is advisable to avoid cleaning stone-set jewelery in a hand-basin. If stones become loose in cleaning, they can easily become lost down the drain.

Right after cleaning is a very common time to discover that stones are missing. Occasionally careless cleaning can be the cause, but usually wear and tear over a period of time are the real cause, and the cleaning merely appears to be the cause. Damage and trauma to jewelery can occur in everyday use, and sometimes the stones are only held in their settings by a build up of grease. When this is removed by cleaning, the stones drop out.
Reprinted from http://www.24carat.co.uk/

Tuesday, January 24, 2006

We have moved. Please view our jewelry blog at a new address: http://www.danforthdiamond.com/blog/

Proposing on Valentine’s Day?

Proposing on Valentine’s Day?

Valentine’s Day is the perfect day to propose to your loved one, and everyone knows that the perfect proposal is accompanied by the perfect diamond engagement ring.

One of the best-known high-end diamond jewlers is Danforth Diamond, and you can be sure that you will find something to suit your taste and budget from their range. Their engagement ring selection is ordered by price, metal, stone setting and brand for easy browsing they are offerind Valentine's Day Jewelry Specials including diamond, to make it an extra special life-long gift for Valentines day.

Of course, finding the right engagement ring is something you will want to put significant time and effort into. Danforth Diamond will help with your decision by providing expert advice on what to look for when selecting a diamond ring. From choosing the shape of the diamond to getting the correct ring size, taking the time to do your research beforehand will give you extra peace of mind as you work up the courage to ask the big question.

Danforth Diamond is also giving advice on ways to propose whether is it Valentine's Day or Thursday. Whatever the occassion or non-occasion, Danforth can help.

Friday, January 20, 2006

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Valentine’s Day Marriage Proposal Ideas

If you’re ready to propose to your sweetheart there is no better day than Valentine’s Day; this day is devoted to lovers and romance. A Valentine’s Day proposal is every woman’s dream and will surely get you an enthusiastic “yes”! Here are some ideas to help you create a romantic Valentine’s Day proposal:

• Cook her a romantic dinner for two. Tie the diamond engagement ring, using ribbon, to the stem of a glass of champagne or sparkling cider.

• Take her out for dinner at your favorite restaurant and arrange with the waiter to display the ring in a box as one of the choices on the dessert tray, or write "Will you marry me?" in chocolate sauce on the rim of her dessert plate. Remember to make your reservations early in the month because restaurants are very busy on this night and you will need the staff to help with your special arrangements.

• Rent a limousine. Propose to her in the limo on the way to or from your special evening. Be sure to bring champagne or sparkling cider to celebrate.

• Rent your favorite romantic movie. Make it special with homemade popcorn and her favorite movie treat. Tell her you want your own happy ending by proposing as the credits roll at the end.

• Give her three roses: Tell her one represents the past, one represents the present and the last one (with the ring tied to it) represents the future. It is estimated that 110 million roses will be sold for Valentine’s Day so be sure to order your roses early for the prettiest petals.

• Turn out all the lights in your apartment or home. Make a trail with candlelight leading her to your engagement ring.

• Send her on a treasure hunt. Provide clues all over town to your favorite spots or just around the house. The last hint should lead her to you, with the diamond engagement ring in hand.

• Create a special book filled with pictures of the two of you. On the last page include a photo of a bride and groom and paste pictures of your faces on the bride and groom with “Will You Marry Me?” written at the bottom.

• Buy 13 days worth of small gifts and wrap them individually. Number each package 1 though 13 and insert a note with each gift. The notes could be 13 reasons why you love her. Tell your sweetheart to start opening the packages on February 1 and on Valentines Day give her gift number 14 in person. Write “Will You Marry Me?” on the last note.

In order to make your Valentine’s Day proposal perfect present your sweetheart with a beautiful diamond engagement ring. And remember, no matter how you say it, your marriage proposal is going to be a special and memorable moment in your relationship.

We have moved. Please view our jewelry blog at a new address: http://www.danforthdiamond.com/blog/

Valentine’s Day Gift Ideas for Married Couples

For young dating couples that are still experiencing the passion and all-encompassing rush of new love, Valentine’s Day can hold great importance. Impressing someone with elaborate gifts can be one way of telling the person that you are dating that you think they are special, and that you have great hopes for the relationship. Valentine’s Day gifts in this stage of a relationship can tell people a lot about each other, and can be a good indicator of where the relationship may be headed.

What about people who have been married for a while?

For married couples Valentine’s Day isn’t less important…just different and, in many ways, better. It is a time to celebrate love and reminisce about all the Valentine’s Days that you have spent together. Gifts given on Valentine’s Day to a spouse can have much more significance, because you should know your spouse well enough to give something that has special meaning. A diamond anniversary band or three stone ring given to a wife tells her that you are glad that you married her and that you value your life together. A gold watch given to a husband tells him that you appreciate him and want him to have the very best.

Married couples don’t have to give elaborate gifts on Valentine’s Day; a meaningful gift that says you care or a sweet gesture of love are just as special. When you are married, the thought that is put into the gift is the important factor. A jewelry gift that says “I know you, and I know what makes you happy” goes a long way toward making someone feel that they are special and valued. If your wife likes heart shapes then giving her a diamond heart pendant or bracelet with heart-shaped charms can mean much more to her than simply handing her a gold chain. It shows that you know what she likes, you listen to her, that you put thought into the gift. Jewelry that celebrates each other’s individuality as well as the life that you have made together can be priceless, no matter what the actual cost.

Giving your spouse something they have been considering buying for a while is a good way to show your love. To come up with an original Valentine’s Day gift think about what is important to your spouse; what makes him or her happy. Does your husband love to golf? Give him a gift certificate for a round of golf at his favorite course. Does your wife love classical music? Tickets for a night out to see the symphony let’s you plan a second night to spend together. A gift of jewelry is a lasting reminder of this Valentine’s Day and your relationship – and jewelry is always appreciated. And don’t forget about giving flowers – they may seem traditional but flowers brighten a winter day and are romantic. One of the reasons that successful marriages stay that way is because the spouses try never to take each other for granted, and the right gift on Valentine’s Day can go a long way in proving your commitment to that ideal.

Saturday, January 14, 2006

We have moved. Please view our jewelry blog at a new address: http://www.danforthdiamond.com/blog/

The History of Valentine's Day

Every February, across the country, candy, flowers, and gifts are exchanged between loved ones, all in the name of St. Valentine. But who is this mysterious saint and why do we celebrate this holiday? The history of Valentine's Day -- and its patron saint -- is shrouded in mystery. But we do know that February has long been a month of romance. St. Valentine's Day, as we know it today, contains vestiges of both Christian and ancient Roman tradition. So, who was Saint Valentine and how did he become associated with this ancient rite? Today, the Catholic Church recognizes at least three different saints named Valentine or Valentinus, all of whom were martyred.

One legend contends that Valentine was a priest who served during the third century in Rome. When Emperor Claudius II decided that single men made better soldiers than those with wives and families, he outlawed marriage for young men -- his crop of potential soldiers. Valentine, realizing the injustice of the decree, defied Claudius and continued to perform marriages for young lovers in secret. When Valentine's actions were discovered, Claudius ordered that he be put to death.

Other stories suggest that Valentine may have been killed for attempting to help Christians escape harsh Roman prisons where they were often beaten and tortured.

According to one legend, Valentine actually sent the first 'valentine' greeting himself. While in prison, it is believed that Valentine fell in love with a young girl -- who may have been his jailor's daughter -- who visited him during his confinement. Before his death, it is alleged that he wrote her a letter, which he signed 'From your Valentine,' an expression that is still in use today. Although the truth behind the Valentine legends is murky, the stories certainly emphasize his appeal as a sympathetic, heroic, and, most importantly, romantic figure. It's no surprise that by the Middle Ages, Valentine was one of the most popular saints in England and France.

Thanks to The History Channel.

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Giving a diamond for Valentine's day any other occasion where your gift must be one that will transcend the ordinary is always a gift to remember. A gift of diamond jewelry will make this Valentine's Day to remember for years to come.

For our purposes in this day and age, diamonds have come to represent a symbol of enduring love and affection. Whether for Valentine's Day, birthdays, anniversaries, or any other event where an exquisite gift is called for, a gift of diamond jewelry will always be sure to please.