Bold transitional Art Deco-to-Retro statement ring, America, circa 1945, crafted in solid 14K yellow gold with fluted and floriated detailing. Centered with a dramatic round cabochon color?changing gray?violet?blue star sapphire (18 x 18 x 13.5mm; approx. 47.24 ct) displaying a well-centered six?ray asterism; semi?transparent with typical inclusions and stated as unheated/untreated. Weight 21.5g; size 7.25 (sizable); top measures 23 x 24mm and rises an impressive 20mm. Stamped with maker’s mark and signed in a triangle “JAM 14KT.” Includes presentation jewelry box. Excellent condition; stone secure. Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide Ring resizing or/and appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.