(Ring size 8.5, cannot be sized) This Boulder opal, set in sterling and surrounded by a solid 22K gold frame, is adorned with a 3mm diamond tube set in 22K gold. The band is 5mm sterling with a band of solid 22K gold soldered to it and is square in shape. The opal changes form purples to blue/green depending on the direction. PLEASE SEE ALTERNATE VIEW FOR SCALE. Returns accepted within 5 days of receipt.