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Edwardian 5.29 CTW No Heat Ceylon Sapphire Diamond Platinum 18K Gold Halo Ring

Edwardian 5.29 CTW No Heat Ceylon Sapphire Diamond Platinum 18 Karat Gold Antique Halo Ring GIA

Centering a mixed step-cut sapphire weighing approximately 3.77 carats total - transparent light blue
Natural Ceylon (Sri Lankan) in origin and displaying no indications of heat treatment
Set with yellow gold a long prongs with a halo surround of old mine cut diamonds
With additional rose cut diamonds bead et in shoulders - all set in platinum
Weighing approximately 1.52 carats total - G/H color with VS2 to SI1 clarity
Accented by milgrain detail on shoulders
Completed by grooved gold shank
Stamped for 18 karat gold via Romanian hallmarks
Circa: 1910
Ring Size: 5 3/4 and sizable
Measures north to south 16.0 mm and sits 5.5 mm high
Total Weight: 3.9 grams
GIA Sapphire Origin Report: 2231376540
Stock Number: We-13543