A timeless design featuring simple bold lines, elegant curves and a highly sought after, natural bold saturated blue-green opal.These rings are made to order and each one will feature:~A natural Australian boulder Opal Doublet - 5x7mm oval~3.75mm wide solid ring shank with a euro style base (Squircle ring shank on the bottom, prevents rotation on the finger)~Ring shank is solid, no hollowing.~Solid Sterling Silver or Solid 14k gold (no plating)~Your choice of ring size~Made to order in about 1-2 weeksAll of the stones I currently have in stock are similar to the opal pictured, but will vary slightly as no two opals are unique.Cheers,AustinPS: If you'd like a different type of opal such as a classic white opal, or a black opal with more reds or purples, please contact me for a quote.