We repair precious & semi-precious stones

The Diamond Doctor
   
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We Sell, Buy & Repair Black Diamonds

 
Black Diamonds Test Data  Lab Grown Black Diamond  Natural Diamond  
Hardness  9.25-9.65  10  
Specific Gravity  3.20-3.50  3.50 – 3.51  
Refractive Index  1.40  1.40  
Chemical Composition  Carbon  Carbon  
Purity  99.9995%  99.95%  
Ingredients  Hydrogen +Oxygen + Nitrogen + Carbon  Hydrogen +Oxygen + Nitrogen + Carbon  
Color  Black Opaque  Black Opaque  


Black Diamond Trivia
  • In metered conductivity tests we find very small differences due to minor calibration and crystal orientation.
  • There are no traces of graining unlike in natural stones which frequently exhibit knotting & graining.
  • Our stones are produced with natural pure raw materials and processed by high pressure and temperatures. This process eliminates the need for radiating the gems to black as natural stones are usually treated.
  • Black diamonds were featured on the front page of the N.Y. Times September 17, 1996 in the Science Section: “Black Diamonds of Mysterious Origin May Hale From Space”.
  • Black Diamonds are very attractive when used in ANY jewelry for men or women. They can be elegantly set in white platinum with yellow gold bezel settings.
  • We source special colors for our special clients: Brown, Yellow, White, Green and Blue ...at a fraction of the price of “Natural Diamonds”.
  • Many jewelers get fine results from placing a black diamond in their window. A neat inquiry poster “Inquire Within” will increase traffic & promote interest.


            
Give us your specification size and shape and we can cut them to your taste.

 
   

Info@QualityDiamondRepair.com
The Diamond Doctor
4 West 47th Street, #68, New York, N.Y.
(212) 921-7630