Important Platinum AGL Certified Natural Unheated Sri Lankan Ceylon Sapphire & Diamond Ring - RS: 7.5 - Gross 12.8 g. Featuring a prominent oval mixed-cut natural Ceylon sapphire center stone, unheated, framed by a sparkling double halo cluster of baguette and round brilliant-cut diamonds, set in platinum. Sapphire approx 11.65 ct, 13.86 x 10.10 x 8.25 mm. 

See images of the information from AGL as well as an appraisal from November 1992 for $59,675. 
Appraisal from 1992 mentions estimated weight of the Sapphire to be 11.50 cts, and the diamonds roughly 3 cts. 

Ring Size: 7.5 

Gross Weight: 8.2 dwt. 12.8 g. 

Mined in Sri Lanka (historically known as Ceylon), Ceylon sapphires are globally celebrated for their striking vividness, exceptional transparency, and high clarity relative to stones from other regions. Unlike darker or heavily included sapphires found elsewhere, their characteristic bright, luminous saturation and vibrant undertones allow them to reflect light with extraordinary brilliance. This unique combination of natural beauty, durability, and historical prestige in royal and fine jewelry makes them highly prized by collectors and connoisseurs worldwide.

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