For sale is this phenomenal, vintage 20 carat Synthetic Ruby Sterling Silver Ring. The nicely faceted ruby measures 20mm x 15mm and is set in fine 0.925 sterling. The setting is currently a size 9 and the ring weighs 9.3 grams. The previous owner had the ruby taken from an 18k setting and put in sterling because of allergies and it looks great in this setting. No scratches, chips, damage or repairs.