18kt Yellow Gold Cluster Halo design Black Opal 7.3ct diamond ringMake a bold statement with this stunning 18kt yellow gold cluster halo ring, featuring a magnificent 7. 3ct Australian black opal as its centrepiece. The oval opal (23x13mm) is surrounded by 46 natural round brilliant diamonds (0. 35ct total, F colour, VS clarity) in an elegant halo design that amplifies its natural fire and depth. The generous 28x20mm setting commands attention on the finger, while the 10g weight ensures comfortable everyday wear.