5 Vintage .925 Sterling Silver Rings. Left to right. 1) Oval black stone 4.4 Grams or .16 Oz. Size 5-1/2. 2) Oval Green Stone 7.3 Grams or .26 Oz. Size 5-1/2. 3) 4 Oval purple stones 4.8 Grams or .17 Oz. Size 5-3/4. 4) Heart shaped cluster of clear stones 5.4 Grams or .19 Oz. Size 5-3/4. 5) Oval Opal-like stone 1.6 Grams or .06 Oz. Size 6-1/2.