Rare multicolored gems of Jaipur, India have just cut and polished the largest Tanzanite on record. A clean, 525.55-carat stone is poised to go on display at the Tucson gem show. The unusually large piece of rough was uncovered at the TanzaniteOne mining facility in Merelani, Tanzania, in early 2008, according to a press release from the Tanzanite Foundation. Skilled cutters at the company's facilities in Jaipur, India, have meticulously shaped the stone to reflect maximum brilliance while keeping its staggering size and unique color. According to the Tanzanite Foundation's Tanzanite Quality Scale, plans are being made to send the gem to the American Gem Trade Association Gemological Testing Center for grading and certification. The rare Tanzanite is subsequently scheduled to be on display in Tucson at the annual GJX Gem Show from Feb. 4-9, in booth number 824-924.
Rare multicolor gems are a TanzaniteOne sightholder. TanzaniteOne offices stretch from Jaipur, India to the US, Europe, Hong Kong and Bangkok. In addition to Tanzanite, the company is known among its clientele in the US and the Caribbean for its selection of emeralds, rubies and sapphires.
Article by National Jeweler.
Check out more beautiful Tanzanite jewelry at ELIE International.
Diamond Cut
A diamond's cut is not only about its shape, but how effectively the stone can return light back to the viewer's eye. A well cut diamond will appear very brilliant and fiery, while more poorly cut stones may appear dark and lifeless, regardless of color and clarity.
Understanding Brilliance, Dispersion and Scintillation
Well-proportioned diamonds exhibit three different properties; Brilliance, Dispersion and Scintillation. As light strikes a diamond's surface it will either reflect off the table of a polished stone or enter into a diamond. The light the reflects is considered part of the diamond's brilliance. Brilliance is the flash of white light one will see when looking at a stone. As light travels into a stone, some rays are divided into flashes of color. This is called dispersion. Fire is the result of dispersion, which is the separation of white light into its spectral colors. As the observer moves the diamond back and forth, the flashes of colors are called the "scintillation."
Diamond Key
Crown : The top part of a diamond extending from the table to the girdle.
Culet : The small/pointed facet at the very bottom of a polished stone.
Depth : The total height of a diamond measured from the table to the culet.
Diamater : Width of a polished stone, measured from edge to edge.
Girdle : The very edge of a diamond where the crown and the pavilion meet.
Pavilion : The bottom part of a diamond extending from the girdle down to the culet.
Table : Largest polished facet located on top of the diamond.
