It is important to note that both boron and nitrogen have atomic sizes comparable to that of carbon, the element that constitutes the diamond crystal, and as such can be easily accommodated in the crystal structure. There is a great demand for jewelry incorporating Ashoka-cut diamonds, such as rings, earrings, bracelets, necklaces and also watches, but production is limited due to the scarcity of extra-long rough diamonds, that are needed to create this cut. History Nothing is known about the early history of the diamond, such as the country and mine of origin, the date of discovery, the weight of the rough stone, etc. The cutters at William Goldberg Diamond Corporation were always guided by his well known maxim, "never maximize the weight of a stone at the expense of beauty. The presence of boron atoms in the crystal changes the absorption spectrum of the diamond producing the blue color. According to the company's website www. Last offered for sale in but not sold Golconda,India 5.
Eileen. Age: 28.
Set in a ring said to have belonged to Marie Antoinette.
Lana. Age: 22.
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As President of the New York Diamond Dealers Club, between and , he is credited for supporting women in the diamond industry, opening up the Dealers Club to the media, and making 48th Street a cleaner and safer business area. Last offered for sale in but not sold Golconda,India 5. The master cutters of the Goldberg Corporation, headed by Diamantaire William Goldberg himself, had made an extensive study of the rough stone and finally decided to cut and polish it into a tapered cushion-cut blue diamond of The diamond has no pavilion as other diamond cuts, but has a cubical-shaped body with elongated 4-sided and 3-sided facets, and two girdles and crowns at either end. Sold by Harry Winston in , later re-purchased and sold to a Middle eastern client in He also motivated people to attain greater heights in their business. William Goldberg made an immense contribution to the diamond industry, by setting the highest standards in his chosen field, worthy of emulation by all associated with the industry.