Vintage NOS 1970's 8 x 6mm Oval Brown Goldstone "Venturina" Rhomboid Ring

Brand new old stock item from the 1970's
Acquired from a jeweler's estate
Crafted of solid sterling silver .925
Weighs 3.40 grams
Features 8 x 6mm oval brown goldstone "Venturina"
Finger size 6 (please inquire about sizing)
Rhomboid measures 13 x 12mm
Ring shank measures 3.5mm
Marked 925