Edwardian Diamond Opal Cabochon Platinum-Topped 14 Karat Yellow Gold Antique Halo Ring roman ancient coins With a fleur-de-lis bale and

With a fleur-de-lis bale and a stylized floral diamond halo

Surrounded by a diamond halo comprised of tapered baguette and round brilliant cut diamonds

With maker's mark and stamped 67 and  750 for 18 karat white gold

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Edwardian Diamond Opal Cabochon Platinum-Topped 14 Karat Yellow Gold Antique Halo Ring roman ancient coins With a fleur-de-lis bale andCentering an oval shaped opal cabochon measuring 11. 8 x 15. 8 mm translucent white with spectral play of color Featuring a halo surround of single cut diamonds all prong set in platinum Weighing approximately 0. 78 carat total G H color with VS clarity Flanked by flared gold shoulders Accented by pierced circle motif profile Stamped 14k for 14 karat gold With partial maker's mark Circa: 1910 Ring size: 8 3 4 and sizable Measures North to South 20. 5