Edwardian Diamond Opal Cabochon Platinum-Topped 14 Karat Yellow Gold Antique Halo Ring roman ancient coins Surrounded by a diamond halo

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

Colombian in origin with striking green color

Stamped 18k and tested as platinum

By-pass design

Edwardian Diamond Opal Cabochon Platinum-Topped 14 Karat Yellow Gold Antique Halo Ring roman ancient coins Surrounded by a diamond haloCentering 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