Sterling silver Marked STS opal cluster statement runway ring amethyst and gold

Absolutely stunning and unique!! Marked STS and 925 opal cluster sterling silver statement runway ring. With so much detail... like 3 rows of 3 prong set lavender amethyst stones up each side of the band and gold wash filigree work between. On the top sits 10 opals. I don't for sure know if they are man made. But I feel like most are man made in the last 10 years. Between each is another tiny amethyst. This is a size 9 and over 1 &1/2 inches long Excellent previous owned condition