An exceptionally brilliant black opal, diamond and enamel ring in 14kt yellow gold.

This tanzanite and opal 14kt yellow gold ring was designed by Tamara Asher and is often sold at Diamonds International.

A bold, ornate opal ring with a ruby border completed with an elaborate 14kt gold setting.

This estate deep red ruby and opal ring features opals that offer a play of color in green and blue.

This beautiful oval opal has a lovely shine and is surrounded by 5 beautiful rubies and 5 lovely diamonds.

An incredibly, big colorful opal with diamonds in an ornate gold setting.