Black Opal Engagement Ring 3 Ct 14K Opal Ring Australian Opal Ring 3 Ct Opal Ring Unique Engagement Ring October Birthstone Libra Gift

Breathtaking antique art deco era genuine 3 carat semi black opal stone accented by six genuine round transitional cut diamonds in platinum and 14K yellow gold shank. Nice and fiery, the color play of vivid green, indigo blue, and deep purple tones in this stone is spectacular! The opal measures 12 mm N to S by 10 mm wide, the equivalent of 3 carats calculated according to measurement. The diamonds measure 2.4 mm each and are very white and sparkly and estimated VS2 or better (very slight inclusions...