Vintage Russian Russia USSR 14K 583 Rose Pink Gold Alexandrite Marquis Ring 8.75

Gorgeous Vintage Russian Russia Soviet USSR solid 14K 583 Rose Pink Gold Fancy Cut Created Alexandrite Solitaire Marquis Cocktail Dinner Ring about size 8.75 5 or 18.75mm (marked "583 with star, hammer and sickle" "4СЮ" and acid tested). The ring was made in 1974 by Sverdlovsk Jewelry Plant. Top of the ring is about 24mm by 12mm. Alexandrite is about 23mm by 10mm and changes colors dependent on lighting and temperature. This unique Ring weighs about 6.4 grams and is in great vintage pre-owned condition.