No-Heat Burmese Star Ruby Ring, AGL-Certified 11ct, Art Deco Platinum Setting

An 11-carat star ruby commands this ring, cut as an oval cabochon and bezel-set in platinum to protect its domed surface while showcasing the strong six-rayed asterism confirmed on the AGL certificate. The report identifies the stone as Burmese in origin with no indications of heat treatment; a combination genuinely rare at this size, since natural, unheated star rubies from Burma rarely reach the market in double-digit carat weights. Twenty round brilliant and baguette diamonds surround the ruby in a stepped, geometric frame, their crisp faceting a deliberate contrast to the ruby's smooth, glowing dome. The architecture of the setting with sharp angles, baguette accents, a bold central cabochon; is unmistakably Art Deco, built in the 1930s when jewelers paired exceptional gemstones with clean, structured platinum work rather than ornate detail.

Excellent vintage condition; no visible wear, damage, or loose stones in photographs. Stamped with maker's mark. Size 4.5. Weighs 6.5 grams total.