'Gaia' is an elegant, classic design 14ct yellow gold opal ring bezel set with a beautiful and bright multi-coloured, round-oval Lightning Ridge solid crystal opal and two shoulder-set sparkling white diamonds. Ring size: S (AU, UK & EU) 9 1/4 (US & CAN)Opal size: 9mm x 8mmOpal weight: 1.03 caratsOpal shape: Round-ovalOpal type: Solid crystal opalOpal colour: Green and blue with yellow-orange flashOpal origin: Lightning RidgeDiamonds: 2 (0.02 carats)Metal: 14ct yellow goldSKU: GOR156 This crystal opal ring features a natural, ethically sourced Australian opal. 'Gaia' is ideal as a dress ring for special occasions, everyday wear and also as an opal engagement ring. Black Star Opal provides a signed Certificate of Authenticity upon purchase. ABOUT CRYSTAL OPALS Solid crystal opals feature a translucent or transparent, light body tone with flashes of bright colour. Crystal opal resembles rock crystal or glass - hold this stone up to the light and you can observe some light passing through this beautiful opal gemstone. Some dark and black opal can exhibit translucency too, and this is called black crystal opal. Read more about Australian opals.