18ct White Gold 3.13ct Aquamarine 0.42ct Diamond Halo Ring. PJW-284. Aquamarine is known for its stunning range of colour, from light sky blue to deep sea blue shades. According to legends, this magical gem originated in the treasure chests of mermaids, and has since been regarded as the sailors\' lucky stone. This enchanting ring features a stunning 3.13ct Aquamarine which is framed with 0.42cts of brilliant cut diamonds.  At C W Sellors, we have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other Aqamarine pieces online and in store to complement this ring. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.