Pewter Roman Dolphin Gem Rings. Finger rings were widely worn by men and women in Ancient Roman times. Gem stones were used to adorn jewelry, and were especially popular in rings. Pewter Roman dolphin gem rings are one size fits all, adjustable, and are available in red, blue, or green glass gems. With Free Colosseum Postcard. Availability: Usually ships the next business day. Pewter Roman Dolphin Gem Ring with Free Colosseum Postcard 279Regular price: $12.99Sale price: $11.69 TO SEARCH OVER 1600 GIFTS AND SOUVENIRS BY KEYWORDS JUST CLICK HERE