Vintage Unique Large 14K Gold Ring Set With A Large Opal Doublet Measuring 5 Carats. The condition is excellent. Ring Size 9-3/4 weight 14.7 grams. from the top of the opal to the bottom of the ring shank it measures 34 mm. From shoulder to shoulder across the top it measures 26-1/4 mm. I believe this ring was made for a man because of the proportions but can be worn by either a man or a woman. It is marked 14K on the inside of the ring shank and tests for solid 14K gold.