The Centenary was established on July 17th, 1986 by the electric X-ray recuperation classification at the Premier Mine. Only a handful of populace knew about it and all were avowed to silence. In its coarse form it resembled an asymmetrical matchbox with lanky planes, a well-known stretched out "horn" jutting out at solitary corner and a profound concave on the principal horizontal surface. The shape of the precious stone articulated issues in cutting with no obvious explanation.
The man chosen to appraise the Centenary was Gabi Tolkowsky, well-known in the diamond business as one of the mainly talented cutters in the planet. His family had long been in the diamond employment and it was his great-uncle, Marcel Tolkowsky, diamond specialist and mathematician, who launched a book in 1919 titled "Diamond Design", which for the 1st time set out precise ways of wounding the modern round dazzling cut.
Gabi Tolkowsky himself was the inventor of 5 innovative diamond cuts, exposed in 1988, which ponder onmaximizing brilliancy, shade or acquiesces or an amalgamation of all 3 from off-color jagged diamonds previously considered tricky to cut gainfully into predictable round or conjure shapes. Named for flowers, the cuts are mostly based on untraditional slant diamonds. The overall magnitude as well as the usage of more facets in the order of the pavilion augment intensity and advance visual collision when viewed face-up.
When cutting was accomplished the Centenary weighed 273.85 carats, calculated 39.90 × 50.50 × 24.55 mm, and had 247 facets - 164 on the rock and 83 around its restraint. Never before, had such an elevated number of facets been refined onto a diamond. In adding together, 2 faultless pear shapes weighing 1.47 and 1.14 carats were slashed from the coarse. Among top-color diamonds the Centenary is surpassed only by the Cullinan I (also known as the Star of Africa) and the Cullinan II, which were incise from the Cullinan crystal previous to modern symmetrical cuts were completely urbanized in the 1920's, building the Centenary the principal contemporary fancy cut diamond in the globe and the only one to coalesce the oldest techniques - such as kerfing - with the mainly complicated contemporary technology in cutting.