Fine Jewels And Watches May 2017
拍品 2009:
Set with a heart-shaped fancy purplish pink diamond weighing 1.01 carats, within the colored diamond of pink hue and brilliant-cut diamond frames, mounted in 18K white and rose gold, colorless diamonds weighing approximately 1.35 carats in total, ring size 6
Accompanied by a report from the Gemological Institute of America, stating that the 1.01 carat diamond is fancy purplish pink, natural color and SI1 clarity, and accompanied by portrait booklet that the diamond has been determined to be Type IIa, report no. 1126691921, dated 2015
In the 1.01ct Fancy Purplish Pink Heart Modified Brilliant, the passion sparked by diamond is enhanced by a rare pink color. Though all diamonds hold significance, rarity is the trait that distinguishes a special diamond from an extraordinary diamond. Gem connoisseurs often refer of a discovery of colored diamond as a "one in ten thousand" event.
This statement is quite telling, for out of all diamonds annually submitted to GIA, no more than 3% are colored diamonds; of these colored diamonds, less than 5% are predominantly pink.
Type II diamonds are rare. They contain no IR-detectable nitrogen in their chemical structure, and represent less than 2% of all diamonds mined. Not coincidentally, they also tend to display exceptional transparency. Type II diamonds are also subdivided into two groups. Type IIa stones have virtually no atomic level substitutions; Type IIb diamonds contain a small amount of boron that substitutes for carbon at the atomic level. According to the records of the GIA laboratory, the 1.01ct heart modified brilliant-cut diamond described in GIA Colored Diamond Grading Report #1126691921 is type IIa.
