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Described as ‘one of nature’s true treasures’, this 143.33-carat colour change garnet from Tanzania is exceptional in both size and quality. Hewn from the 250-carat rough - the largest in the mine’s history - the cushion-shaped, brilliant-step cut exhibits a distinct change from brownish green, in daylight, to rich red, under incandescent light. Untreated and transparent, a top quality garnet like this - displaying both Usambara and Alexandrite effects - is extremely rare. Eye-clean, this garnet exhibits only one discreet feather and, under the microscope, an exquisitely formed fingerprint pattern. Possessing extraordinary characteristics - the kind more usually found showcased in museums - a gemstone of such beauty and scarcity is truly a wonder to behold. Shipping and secure viewing is available on request.

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