1886
Probably within the last 30-40 years, since they are inscribed by lasers. Initial documentation about using lasers in the diamond industry is dated in the early 1980s.
No, but a diamond is.
Diamond.
You have spelled it correctly: diamond.
Because it looks similar. But it DEFINATELY IS NOT A DIAMOND. A diamond is never used in math. A rhombus is an actual geometric shape, unlike a diamond.
Debeers
DeBeers are the diamond people in South Africa, they mine and they also broker, in one word they have the monopoly on the diamond industry, they are world famous, when you say "DeBeers" you know you mean diamonds.
DeBeers controls about 35% of the diamond gemstone industry, according to Time Magazine, November 2010.
The DeBeers diamond empire began in 1837 with the discovery of a Diamond mine in Africa. The DeBeers popularized the use of diamonds as a stone signifying commitment..
Probably the DeBeers organization.
This slogan began with DeBeers in the 1930s.
It makes money for the Debeers family.
This diamond was found in 1990 and purchased by DeBeers. DeBeers is a diamond company owed by De Beers Société Anonyme, which was incorporated in Luxumbourg in 2000. Understandably, this stone is kept by the company in a place where its location is not well known. Read more about it, below.
Wholesale and to the trade, the largest supplier is probably DeBeers.
The De Beers Group is considered the first major diamond company. It was founded in 1888 by Cecil Rhodes and played a significant role in the diamond industry's growth and marketing strategies.
The largest collection is probably in the hands of the DeBeers diamond organization.
The Kimberley Process deceitfully exploits the mining/front end of the African diamond industry and covertly sustains the retail/back end of the world diamond industry.