27 Jan 12 Precious Colored Diamonds
A diamond is the world’s exceptionally precious gemstone, but the beauty of colored diamonds is something which every gemstone might crave for. Being the most admirable and rare, colored diamonds are the dream of every investor, collector and connoisseur. It is the most sought after gemstone and an investment of a lifetime. An interesting fact about a colored diamond is that it is the most rarest among 10,000 carats of diamonds. In simple words, only 1 carat are colored out of 10,000 carats.
These fancy diamonds are available in vibrant red, blue, green, purple, yellow and so many other hues. Important factors to be considered while grading colored diamonds are their fancy & vividness, which depends on their color and saturation. The beautiful colors of these diamonds are a result of presence of trace elements within the carbon crystal structure of a diamond.
Common colors found are mentioned below
Yellow : When nitrogen is present as an impurity in the crystal structure of diamond, it appears as yellow color.
Blue and grey : The presence of boron (hydrogen) results in formation of this color.
Green : Green color is due to the ‘vacancy color center’ phenomenon.
Gemology defines it as the vacancy in the atomic structure of carbon.
Pink, mauve,brown : These colors are created by plastic distortion.
In other words, due to disfigurement of the internal frame of the diamond.
The rarity of the colored diamonds is marked by the fact of their 1 percent presence amongst the world’s total diamond. Hence, they can be aptly addressed as priceless. Red is the most rare color found in diamonds and because of rarity, diamonds undergo HPHT treatment- or the High Pressure High Temperature treatment to form color. In this treatment, diamonds are put under high pressure and high temperature to transform the crystal structure and create brown diamonds colorless and diamonds with nitrogen into a deep yellow-green color.
Diamond Jewelry Manufacturers & Suppliers : http://www.indianindustry.com/diamondjewelry/
28 Jul 11 The Splendor of Diamonds
The Diamonds in the Smithsonian’s Exhibit
The Smithsonian’s Splendor of Diamonds was a display of seven of the rarest diamonds in the world. The diamonds ranged in size from 5.11 carats to 203.04 carats. The exhibit ran from June 27, 2003 to September 15, 2003. The seven diamonds displayed were the Allnatt, the Millennium Star, the Ocean Dream, the Moussaieff Red, the Heart of Eternity, the Steinmetz Pink, and the Pumpkin Diamond.
The Allnatt is a cushion-cut, Fancy Vivid Yellow diamond, as rated by the Gemological Institute of America (GIA.) It is currently owned by the SIBA Corporation and has a mass of 101.29 carats. Its yellow color is due to a certain concentration of Nitrogen impurities within the carbon structure. The Allnatt’s rarity comes from its size and its color- few diamonds with a mass greater than 100 carats can retain such a vivid color, which makes these diamonds perfect for money back guarantee diamonds, since nobody would want to return such a unique diamond.
The Allnatt Diamond
The De Beers Millennium Star is the sixth largest known colorless diamond of gemstone quality that has ever been found.
It is the second largest flawless, colorless pear cut diamond. The lack of color in the Millennium Star means that it is made entirely from crystallized carbon. There are no impurities from other elements, no defects in its structure, no irradiation during the growth process.
The Millennium Star is owned by the De beers company. It originated from the Democratic Republic of the Congo in the early 1990s. The original diamond was 777 carats (155.4 g.) It went to the Steinmetz group three years to laser-cut and polish the rough crystal to its 203.04 carat pear shape.
There was some debate concerning whether the diamond was a “blood diamond” or a “non conflict diamond” since it was from an area rich in war diamonds, but this truth was never proven and cleared the Kimberley Process.
The Ocean Dream is a 5.51 carat (1.102 g), Fancy Deep Blue-Green diamond, as rated by the GIA. It is one of the rarest diamonds in the world, for it is the only natural diamond known to the GIA to be of a blue-green color. Blue green is normally seen in synthetic or artificially altered diamonds. In order to achieve such a hue, the diamond color must be altered via irradiation. The Ocean Dream was exposed to millions of years of the earth’s natural radiation- causing its blue-green color.
The Moussaieff Red is a 5.11 carat (1.022 g), trilliant cut, fancy red diamond, as rated by the GIA. Red, especially a deep red, is one of the rarest hues found in a diamond. The Moussaieff is the largest Fancy Red diamond that the GIA have ever seen. It was found by a farmer in Brazil in the mid 1990s, where it was purchased as a rough crystal of 13.9 carats (2.78 g) by William Goldberg Diamond Corp. The crystal was cut, polished, and named the Red Shield. It was bought by the Moussaieff Jewelers Ltd and renamed.
The Heart of Eternity is a 27.64 carat (5.528 g), heart cut, Fancy Vivid Blue diamond, rated by the GIA. This diamond originates from South Africa. It was cut by the Steinmetz Company, who sold it to the De Beers Company. The blue color is due to boron impurities in the carbon structure of the diamond. Very few “blue” diamonds are of such vivid color, for often the boron is only located in certain sections of the stone, or the color is extremely desaturated and mixed with shades of gray.
Like many diamonds, the Steinmetz Pink originates from South Africa. It is owned by Steinmetz Company, has a mass of 59.60 carats, and is internally flawless. The GIA diamond rings Institute (the world’s foremost authority on diamonds) confirmed it to be the largest Fancy Vivid Pink diamond that they had ever seen. It took twenty months to prepare, cut, and polish.
At 5.54 carats (1.108g), the Pumpkin Diamond is one of the largest Fancy Vivid Orange diamonds that the GIA have ever rated. It originated from the Central African Republic, where it was cut and polished by William Goldberg. The Pumpkin Diamond was bought by Ronald Winston for 1.3 million dollars, though it is currently valued at three million dollars. It was set in a ring between two white diamonds for actress Halle Berry to wear to the 2002 Oscars.
Allison Ryan is a freelance marketing writer from San Diego, CA. She specializes in gemology, GIA diamond rings, and where to find a non conflict diamond. For a breathtaking selection of diamonds and to learn more about this beautiful stone, stop by http://www.diamondwave.com/.
24 May 11 Green Diamonds
Natural fancy green diamonds are an extremely rare discovery and are very expensive. For this reason they are perfect for those looking for an investment. The truth is that this is the case for a lot of natural fancy colored diamonds.
Do green diamonds come in different shades?
Green diamonds can range from light pastel green which are called Fancy Light Green Diamonds, or Fancy Green Diamonds, to the rarer Intense Green and Vivid Green diamonds. Needless to say the scarcer colors are the ones investors and collectors are searching for.
In the course of a typical year there may only be a single new pure Fancy Intense Green Diamond and Vivid Green diamond discovered. A good number of green diamonds contain a yellowish tint which dilutes the greenish tinge, but even these colors are rare.
How does a diamond become green?
The green color is made by the fact that the diamond was in contact with alpha particles in uranium compounds. Quite often percolating groundwater can also be the cause this green color. The diamond needs to be surrounded by these types of elements for quite a very long time to cause the diamond to become green. This is one of the reasons the green diamonds is so uncommon.
Put simply, just about all stores will sell treated variations, so make certain to check the certificate if you want a natural green diamond to be sure that you are not buying a synthetically colored diamond. A fancy color diamond certificate always states the color origin of the diamond.
Are there famous fancy green diamonds?
The Dresden Diamond is very well-known and is a natural fancy green diamond. It is egg-shaped and has a moderate grey tinge. This stone weighs approximately 41 carats. The reason that we don’t know the exact weight of the Dresden Diamond along with its measurements is due to the fact that during its gemological exam in 1988 it was not extracted from its mounting. It was feared that taking the diamond out of its setting would cause damage.
The particular diamond’s history has been documented for around 250 years. It appears that it came from Golconda, India, which is where the first diamond mines were uncovered.
As stated above, because of the fact that the majority of shops do not own a natural green diamond because of its rarity, if you are paying for a natural diamond then ensure you check the certificate. Green diamonds, obviously, would make an excellent surprise for the person you love.
19 Jul 10 Diamond Jewellery
Diamonds truly are a girls best friend
Sat within a suitable setting, a diamond will put a gleam in any girls eye.
Looking for a very special present? Need a gorgeous gift that tells the lady in your life just how much she means to you? How about diamond jewellery and in particular a select item from a quality selection of diamond solitaire rings? Thats right. Search for stunning diamond engagement rings that will express your feelings of love. Be bold. Make the move. Invest in diamond jewellery itll be the best decision you ever make. Shes the girl of your dreams and theres one way you can show her that she means the world to you, by presenting her with some sparkling diamond jewellery.
Firstly though, herere some tips about buying diamond jewellery for a lovely lady.
Rabbits like carrots, girls like carats
If you know nothing about diamond jewellery and in particular diamond solitaire rings the four Cs are a great place to start. They pertain to the clarity, colour, cut and carat of the diamond engagement rings.
Each individual stone is different and those looking for perfection will take great care choosing the cut of the diamond which gives it the unique shape. The clarity of diamond jewellery is also of great importance and stones with no imperfections tend to be more expensive. With regards to colour, diamond jewellery can vary greatly; some girls prefer crystal clear options, others like stones that have a champagne hue.
Lastly, you have to decide on the carat, or the weight of the ring. Look through diamond jewellery collections and the bigger the carat, the more expensive the ring becomes.
Now you know
Ok, you know all about the 4 Cs, you want to buy one of the best diamond solitaire rings that you can afford and need to find a great supplier of diamond jewellery. Where do you look? Local retailers are always available but they can prove to be one of the most expensive options. Online wholesalers can save you a stash of money on diamond jewellery. Search web stores. See what savings you can make on diamond jewellery, in particular, diamond engagement rings. Give them a call if you cant see anything that you like, theyll be able to source diamond jewellery for your individual requirements.
Buy that rock. Find the perfect engagement ring for your girl and then put some thought into where you are going to propose!
