This solid australian opal comes in at over 5 carats with deep indigo to royal blue reflecting from its depths and aqua blue flash over the surface under light. I've wrapped it in the warmth of 22k gold and paired it with a blue topaz in 18k. The stones sit on a swirled band of brushed argentium sterling silver (.940) enhanced with gold dots. Fits like an 8 1/2-3/4 due to the width of the band.
