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Glittering Halo: Vintage Iolite & Diamond Ring

An eye-popping dash of color will set you up for success. Iolite is a blue to blue-violet variety of the gem cordierite. The stone became quite popular and part of the fashion trend of 18th century Europe. In addition, the first two decades of the 1900s saw a resurgence of the employment of bold colored stones.

Now the 21st century version with an 18k rose gold top and 14k rose gold shank is vying for attention with colored gems. Here a natural iolite of an estimated 5.1 carats plays hue changing games with s wondrous deep lavender hue. This stone has an unusual optical property, that of pleochroism, in which dependent upon the angle, iolite can appear to be different colors. The phenomenon is very strong for iolite and with a halo of twenty (20) old European cut diamonds of an estimated .60 carats total (I-J color; SI1-2 clarity) surrounding the oval faceted gem, surprises are in store.

Date: Circa 1920.

+ Measurements, Condition & More

Measurements: 7/8 of an inch (1.7 cm) in width and rises 1/4 of an inch (0.8 cm) in height off the finger. Weight of 5.4 grams (3.4 dwt).

Ring Size: US 6-1/2 (UK M-1/2; Euro or Int. Circum. 53.1 mm; Int. Dia. 16.9 mm; Japan 13) and easily can be sized to fit most. Ring sizing information.

Condition: Excellent; a few diamonds with minute wear or chips only visible with magnification; iolite has one visible natural inclusion on the top that appears as a tiny gold fleck.

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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