Yowsa! That's the word for this ring. It's a great big beautiful Royston turquoise cab, natural and backed, set in sterling silver. The style is called castellated, the big fat bezel is sawed one little bit at a time, labor intensive but oh so luscious. Dimensions are 38x25mm. It's a high dome cab, beautifully cut and polished by one of my favorite cab artists.
It's going to fit 7.5 to 7.75 ring size, the shank is a big heavy triple strand of sterling silver.
Don't wait, the last one sold in 10 minutes.