Vintage Tasaki certified Australian black opal diamond ring US size 6

The Tasaki black opal ring is acquired from Japan. it features a full spectrum play of color of the natural Australian black opal of 0.68 ctw. side stones are good quality diamonds totaling 0.09 ct. it has vitreous luster of red, yellow, blue and green colors. all metal is solid PT900 comes with JSL certificate Finger Size: US 6 ‎ Resizing Available: no ‎ Item Weight: 5.5 grams certification: JSL Hallmars: Tasaki brand mark, pt900, 0.68, 0.09 product origin: Japan