An Exceptional Ruby, Tsavorite Garnet and Diamond Ring, by Ferri
The step-cut ruby, weighing 10.06 carats, within a pavé-set circular-cut tsavorite garnet surround, accented by brilliant-cut diamonds, garnets approximately 11.60 carats total, signed FERRI, ring size 6½
Accompanied by an AGL (American Gemological Laboratories) report stating that the natural ruby has no indications of heat treatment and originates from Kenya. Report number 8086172, dated 13 March 2017.
Accompanied by a Gubelin report stating that the ruby has no indications of heat treatment and originates from East Africa. Report number 0910175, dated 26 October 2009.
Famous for tsavorite garnet, Kenya is also home to a host of other glorious gems including ruby, sapphire, amethyst, aquamarine, garnet and iolite.
Ruby has been mined in Kenya for many years and a recent discovery near the town of Baringo in the Rift Valley is now providing the region with Ruby and Pink Sapphires. These are said to be of a higher grade than those being mined in the Tsavo National Park, which are often cut into gem beads or cabochon cut.
Kenya rubies surprised the world when they were discovered in the sixties because their colour rivals the world's best. Unfortunately, most of the ruby production has many inclusions, tiny flaws which diminish transparency. They are rarely transparent enough to facet. Lot 591 which is a very rare ruby of over 10 carats from Kenya and has similar colour and optical properties to their Burmese counterparts.
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