Vintage 925 Sterling Silver Art Deco Ring, Size 9

Unique vintage Art Deco sterling silver ring. Size 9. With one square shaped blue stone (possibly lapis lazuli, or some other stone from the turquoise family). It is surrounded with sparkly clear stones, possibly natural zircons. I don't think they are diamonds. This ring has signs of wear, as pictured, but is still fully wearable and with character. Unisex, so will be listed in both men and women categories.