18x13mm turquoise and white acrylic mermaid cameo. On an antiqued brass cigar band style ring. Easy to adjust to most sizes. Available in both antiqued silver and antiqued brass. I also have a matching necklace in my shop (see in last photo). Pirate Ring, Pirate Jewelry, Mermaid Ring, Steampunk Accessories, Cameo Jewelry, Cameo Ring, Vintage Style Jewellery, Cameo Necklace, Steampunk Jewelry