Antique Cat’s Eye Chrysoberyl Diamond Ring
Ever wonder how the optical phenomenon referred to as chatoyancy (that cat’s eye effect) came to be? No stretch of the imagination here as it originated from the French verb chatoyer – to shimmer as in a cat’s eye. No matter the etiology, the resultant wonder is fascinating to see and watch in action.
Here we have a nicely proportioned antique oval cabochon chrysoberyl of an estimated 4.5 carats which exhibits a strong effect of the “eye” clearly moving across the surface of the gem. The stone glows with a range of hues from light tawny fawn to that of off-white. The gorgeous gem also has touches of khaki which adds to its great depth. A wreath of fourteen (14) old mine cut diamonds of an estimated 1.05 carats (I-K color; VS2-SI2) set in platinum form a glittering surround for this optical wonder. The rest of the ring is of 18k yellow.
Date: Circa 1910.
Measurements: 3/4 of an inch (1.9 cm) in width and rises 3/8 of an inch (1.0 cm) in height off the finger. Weight of 5.7 grams (3.7 dwt).
Ring Size: US 8-3/4 (UK R; Euro or Int. Circum. 58.9 mm; Int. Dia. 18.7 mm; Japan over 17) and easily can be sized to fit most. Ring sizing information.
Condition: Excellent; two diamonds with a few tiny chips; evidence of previous resizing visible with magnification.
Note: Stones were not removed to preserve the integrity of the setting. All weights are approximated by measurement and formula and may vary from actual weights. Grading may vary if stones are removed. All metals are acid tested.
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