Shop › Opal ring Image 1 of 3 Image 2 of 3 Image 3 of 3 Opal ring A$280.00 Boulder opal from Queensland.Sterling silver ring.Size S (US 9.5)Handmade by me, here in Melbourne. Add To Cart Added! Boulder opal from Queensland.Sterling silver ring.Size S (US 9.5)Handmade by me, here in Melbourne.