Monday, November 22, 2010

Buying Diamonds Online

With all of the potential for scams concerning diamonds, buying diamonds online almost seems unthinkable! However, you actually can purchase diamonds online, without any problems, as long as you are careful.

First, think about your reasons for wanting to purchase the diamond online, as opposed to making a purchase from a local jewelry store. The most common reason is price. Due to low overhead costs, online jewelers and wholesalers are able to offer lower prices. However, you must be careful – sometimes a price that is too low is a sure indication of a scam.

One of the best things about purchasing online is the unlimited selection. When shopping offline, you are limited to the selection in the stores in your general area. Online, there are no limits. But again, you must use a great deal of care and consideration before handing your money over to someone that you cannot see and have never met!

Before shopping, learn as much as you can about diamonds – especially cut, color, clarity and carat weights. When you are knowledgeable about diamonds, it will be harder for a con artist to rip you off. Once you know more about diamonds, you will be ready to start shopping.

Take your time. Don’t purchase the first diamond that you see that interests you. Instead, look for similar diamonds for sale. Do some comparison shopping to find the lowest prices. Once you have found the lowest price, start doing your investigation. You know about diamonds, you’ve found a diamond that you love, and you’ve found the lowest price – but you are still quite a ways away from actually purchasing that diamond!

Ask about the seller’s credentials, such as professional jewelry associations that they belong to. View and print the seller’s return, refund, and upgrade policies. Also inquire about additional services, such as settings and mountings, sizing, and free shipping. Do a search for customer reviews on this particular company around the Internet. Also check with the BBB Online to see if there have been any complaints.

Ask for a diamond grading report from an independent laboratory such as GIA, HRD, EGL or AGS. You should see this before making a purchase. Finally, use a reputable escrow service for high dollar diamonds – preferably one that will have the diamond appraised while it is in their possession.

The seller sends the diamond to the escrow service, and you send the money to pay for the diamond to the escrow service. The escrow service has the diamond appraised, sends the diamond to you, and sends the money to the seller. This is the surest way to protect yourself…again, make sure that you use a reputable escrow service!

Saturday, October 2, 2010

About Fancy Colored Diamonds

Fancy colored diamonds are all the rage these days. Gemologists have developed new ways to create versions that are affordable for the average person - by treating less desirable diamonds. These less desirable diamonds are treated with irradiation followed by intense heat.

This turns brown and yellowish diamonds into beautifully colored diamonds that you can afford. This produces stunning greens, blues, yellows, reds, purples and other colors. These colors are considered permanent, but there is a possibility they could change during repairs if a high heat is used.

Treatments like irradiation make it possible for more people to own these vividly colored diamonds. Most natural colored diamonds are rare and also extremely expensive. When shopping for colored diamonds you need to assume that any affordable fancy color diamond has been treated. Ask about the stones origin and request to view a lab certificate to verify authenticity.

Synthetic colored diamonds are another option if owning a colored diamond is something you desire but cannot quite afford. They are real diamonds, but they are created in a lab.

Natural fancy color diamonds get their coloring from different trace elements present in the stones, such as nitrogen, which produces a yellow diamond. Diamonds can be colored by exposure to radiation during its creation. An example of a diamond affected by radiation is a Green diamond.

Another way that a natural colored diamond gets color is by its inclusions. Regarded as flaws and undesirable in a colorless diamond, inclusions give unique tones and brilliant flashes of color in a fancy color diamond. Remember that Natural fancy colored diamonds are very expensive, any colored diamond labeled to be sold as natural should be accompanied by a certificate from a respected grading lab.

A "fancy" diamond is a natural diamond that has color. These colors vary from red, green, purple, violet, orange, blue and pink – and most shades between. Fancy color shades vary from faint to intense.

The most famous diamonds in the world are Color diamonds. The Tiffany Diamond, which is yellow and the Hope Diamond which is blue are colored diamonds. Color diamonds have an amazing financial track record. The value has never decreased on wholesale level in more than 30 years.

Blue and pink diamonds have doubled every 5 years of a strong economy. In the 1970’s you could have bought a very high quality blue diamond for about 50K and today the very same stone would be worth between 2 and 3 million.

Thursday, September 16, 2010

Diamond Cutting Styles

Our love of diamonds and admiration of their brilliance has given rise to many different cuts of diamonds. While we still see some of the earliest styles of diamond cuts – such as the round and emerald-cut, there are many more cuts today, some of them patented by their designers and costing hundreds of thousands of dollars.

The most popular cut for a diamond ring today is still the round, brilliant cut. It was developed in the 17th century in Venice. It is still preferred when the raw crystal is in an octahedron formation. Even though as much as 50% of the stone is cut away in the process, often two stones can be carved from an octahedron.

More unusually-shaped stones are used for fancy cuts, such as a marquise, pear or heart-shaped diamond. The earliest brilliants had 17 facets on the top of the stone and were called double-cut. This was soon improved with stones cut with 33 facets and were called triple-cut brilliants.

In the 19th century, with the development of better gem-cutting tools, more innovations in diamond cutting styles were developed. In 1919, Marcel Tolkowsky combined the art of cutting with the science of light and refraction and published his book, Diamond Design. These relatively recent geometric calculations were the forerunner of much of diamond cutting work today and led to other, more precise mathematical models engineered to enhance the fire and brilliance of diamonds.

There are now cuts such as the princess cut, trillions, ovals, pear and heart-shaped. Some innovative cutters have even fashioned star or butterfly-shaped diamonds!

One patented cut, the Ashoka diamond, is an oblong cut with rounded, brilliant ends, and requires a stone 3 carats or larger. It’s an exceptionally beautiful (and pricey!) diamond shape. Tiffany has also patented a cut of diamond called the Lucida cut. It’s the lucky bride whose fiancé gives her one of these highly coveted stones!

Saturday, March 22, 2008

Diamond Scams

When it comes to diamonds, there are numerous scams to avoid. Most scams are minor, but there are some major ones that come up from time to time concerning the buying and selling of diamonds. Scams occur simply because most people who buy diamonds – for whatever reasons – don’t know that much about diamonds. Therefore, they are easily fooled.

A common scam that most jewelry stores participate in is the Carat Total Weight scam. The tag on the piece of jewelry, usually a ring, only states the total carat weight of all diamonds in the piece, instead of listing the total weights separately for each diamond. This leads consumers to believe that the main diamond in the piece is actually bigger than it is. Ask what the total carat weight of the center stone is. Also beware of fractions. Jewelry stores are allowed to round off diamond weights. This means that if the jeweler tells you that it is a ¾ carat diamond, it is probably between ½ and ¾ carat – but closer to ¾.

Jewelry stores often run ‘fluorescence’ scams to varying degrees. Referring to a diamond as a blue-white diamond is such a scam. A blue-white diamond sounds very unique and special, but in fact, this type of diamond is of lesser quality – even though the jeweler will try to make you think you are getting something special. Jewelry stores also like to show their diamonds in bright lights. Lights make diamonds shine. Ask to see the diamond in a different, darker type of lighting as well.

Some truly unscrupulous jewelers target those who want appraisals on diamonds that were given to them as gifts or that were purchased elsewhere. They will try to tell you that the diamond is worthless, or worth less than it actually is worth – and offer to take it off your hands or trade it for a much better diamond, along with the cash to make up the difference. This is called low balling. Get a second, third, and even a forth opinion before taking any action.

Another common dirty trick is to switch the diamond you have chosen and paid for with one of lesser quality and value when you leave it to be set in a piece of jewelry, or leave a diamond ring to be sized. The only way to avoid this is to do business with one trustworthy jeweler. Avoid jewelers that you have not done business with in the past.

There are many more scams that jewelry stores commonly pull on unsuspecting consumers. Just use your best judgment, and purchase your diamonds with the utmost care and consideration.

Diamond Cutting

Diamonds are quite ugly in their most natural form. They have no luster or shine, and in fact, look like nothing more than broken glass. A diamond must be cut, and then polished before it actually becomes athing of beauty.

Diamonds are cut with saws, into round shapes. From the rounded shape, other shapes may be cut, such as heart shapes – but the shape is less important than the quality of the cutting that is being done. If the diamond is poorly cut, it will lose light, and it will not sparkle and shine very well. Each facet of the diamond must be carefully cut into the geometrical shapes that allow the diamond to sparkle and shine, then the entire diamond is cut into a specific shape, such as an emerald cut or a princess cut diamond.

Once the cut is done, the diamond is put into a dop, which resembles a cup with another diamond – only a diamond is strong enough to smooth the edges of another diamond. Once the diamond has been cut and shaped, and had the edges smoothed in the dop, it is polished on a scaif or a diamond polishing wheel.

Diamond Mining Methods

We seldom think about how the diamonds we wear came to us. Natural diamonds, as opposed to synthetic diamonds or fake diamonds, are mined from the earth. There are currently two methods of mining diamonds: Pipe Mining and Alluvial Mining.

When pipe mining is used, the diamonds are extracted from the earth through volcanic pipes. These are not man-made pipes. These are natural pipes in the ground. Shanks are put into the ground next to the pipes, and tunnels are driven into the deepest parts ofthe pipe. The diamonds are not sorted out at the mine. Instead, huge rocks that are full of diamonds are brought out of the mine and moved to a screening plant for separation.

The Alluvial mining method is done in riverbeds and on beaches. Walls are built to hold back the water and the sand on the bank or beach is moved with a bulldozer until the level of earth that diamonds can be found in is reached. Again, the diamonds are not sorted here. Instead, the sand that contains the diamonds is bulldozed into trucks, and taken to screening plants.

Diamond Mining

Argye mine located in the Kimberley region in the far north east of Western Australia. Owned by Rio Tinto, this mine is the world’s largest single producer of volume of diamonds. However, due to low proportion of gem quality diamonds it is not the value leader. It does produce 90-95% of the world’s supply of pink diamonds.

Diavik is also owned by Rio Tinto, located in Canada it is a very large mine. It is located north of Yellowknife and south of the Artic Circle on an island. The island is connected by an ice road. It is also an important part of the regions economy employing more than 700 people and producing more than 8 million carats annually.

Ekati diamond mine is owned by BHP Billiton and located south of the artic circle in the Northwest Territories of Canada. The Ekati is Canada’s first operational diamond mine. Diamonds mined here are sold under the Aurias trade name Authenticity is verified through CanadaMark service. CanadaMark service is also owned by BHP Billiton Diamonds, Inc.

Baken diamond mine is located along the lower Orange River in South Africa. It is owned and operated by Trans Hex. The average size stone for 2004 was 1.29 carats. In 2004, this mine produced a 78.9 carat D color flawless diamond that sold for more than 1.8 million dollars (US), as well as a 27.67 pink diamond that was sold for over 1 million US dollars.

Merlin is the second of only two diamond mines in Australia. No longer operating it was owned by Rio Tinto and sold to Striker Resources, who has explored the possibilities of reopening the mine.

Orapa is the world’s largest diamond mine. It us located 240 Km west of Francistown. The mine is owned by “Debswana” which is a partnership between DeBeers and the government of Botswana. This mine operates 7 days a week. It maintains pre primary and primary schools for its employee’s children. There is also a 100 bed hospital and game park. This mine began production in 1971 and is the oldest mine owned by the Debswana Company.

The Premier mine located in Cullinan, South Africa produced the largest gem diamond ever in 1905. The Cullinan Diamond weighed 3,106.75 carats. This mine also produced the Golden Jubilee diamond which weighed 545.67 carats. This mine is owned by the De Beers Company and was renamed The Cullinan Diamond Mine in 2003 in celebration of its centennial.