The openwork mount centering on an oval sphene framed by round diamonds

METAL: 18k yellow gold (tested)
DIAMONDS: 8 old-cut diamonds with approximate total weight of 0.40 carat
STONES: 1 cushion-shaped sphene measuring approximately 15.31 x 12.38 x 8.13 mm and calculated to weigh approximately 12.00 - 13.00 carats
SIGNATURE: TIFFANY & Co
MARKS: scratch numbers
SIZE/DIMENSIONS: 2.6 x 2.8 cm
GROSS WEIGHT: 12.8 grams
Circa 1900

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