Elegant SWAROVSKI style cut Nirvana Crystal Smoke Black cocktail ring size 7

This elegant Swarovski style cut Nirvana Smoke Black cocktail ring in size 7 is a stunning piece of jewelry perfect for any occasion. Size 7 Pre-owned Excellent condition, no chips, no cracks or scratches No box I do not see the signature swan stamp on this piece and can’t remember if the original al box / purchase was Swarovski. Hence, saying a Swarovski style cut