Retro Vintage Diamond Platinum 18K Gold Ring

This is a stunning retro vintage ring c.1940 with a swirl design. The center diamond is an old mine cut and there are 8 rose cuts all set in platinum in 18K yellow gold. The diamonds average I color S-1 clarity. Ring is not marked test for 18K excellent condition, Ring size 5.5, Weight 6.75 grams, Face of the ring measures 20mm by 12mm