SA Jewellery Company profile: Wholesale of Jewellery and Gemstones
About Colored Diamonds
Color Rarity Chart represents average values based on pure colors.
Some diamonds contain mix of colors which can increase or decrease the diamond's value.
IF / VVS diamonds and select shapes as a round, emerald and princess are frequently sold at premium. The rarer the color, the more valuable the natural color diamond.
The range of natural colored diamonds is so broad that diamonds will range from 2,500 $/ct (left side) to 1,500,000 $/ct for some specimens on the right side.
Natural Colored Diamonds have been discovered in every color of the rainbow, from the rare Brown and Yellow to the rarest Purple and Red. Natural Colored diamonds are miracles of nature and extremely rare, there is only 1 in 10 000 chance that any diamond will posses any natural color of above diagram. Natural Colored Diamonds come from different parts of the world, even specific mines. The Agryle mine in Australia is most consistent source of Pink Diamonds. Many Purple Diamonds come from Siberia and Green Diamonds from South America. Yellow and Blue Diamonds mostly come from Southern Africa.
Four Attributes that affects value of Colored Diamonds
1.The Rarity of Color The rarer the color, the more valuable the Natural Color Diamond. Some diamonds can contain secondary colors which could increase or decrease the diamond value.
2.The Intensity of Color The more intense the particular color, the more valuable the Natural Colored Diamond.
3.The Size of the Stone If the color and intensity of color is the same, then the larger the stone, the more valuable the Natural Colored Diamond.
4.Shape of the stone
In the 20th century, specialists in the field of gemology developed methods for diamonds classifying 4 Cs: Color, Clarity, Cut, and Carat Weight. Today the 4 Cs is globally accepted standard for describing and assessing the quality of any diamond, anywhere in the world.
Flawless (FL) No inclusions and no blemishes visible under 10x magnification
Internally Flawless (IF) No inclusions visible under 10x magnification
Very, Very Slightly Included (VVS1 and VVS2) Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
Very Slightly Included (VS1 and VS2) Inclusions are observed with effort under 10x magnification, but can be characterized as minor
Slightly Included (SI1 and SI2) Inclusions are noticeable under 10x magnification
Included (I1, I2, and I3) Inclusions are obvious under 10x magnification which may affect transparency and brilliance
Diamond's cut is not about the shape (round, emerald, pear), but a diamond's cut grade is really about how well a diamond's facets interact with light. A diamond's cut is crucial to the stone's final beauty and value. And of all the diamond 4Cs, it is the most complex and technically difficult to analyze. Calculation the proportions of those facets that influence the diamond's face-up appearance. These proportions allow to evaluate how successfully a diamond interacts with light to create desirable visual effects such as:
Brightness: Internal and external white light reflected from a diamond.
Fire: The scattering of white light into all the colors of the rainbow. Scintillation: The amount of sparkle a diamond produces, and the pattern of light and dark areas caused by reflections within the diamond.
Considering the purchase of a colored diamond, it is recommended to have a certificate even for small stones in order to avoid the purchase of a modified diamond, HPHT or synthetic. →Most common Diamonds treatment.
To discover the advanced technologies to modify diamonds, requires the use of specialized equipment that can only be found in specialized diamond laboratories. Laboratory Certificate from a renowned laboratory recognized around the world is the only reliable source of colored or white diamond evaluation. In our opinion, the following laboratories guarantee a reliable assessment of origin and value of Colored Diamonds.....more