This very nice art deco ring has 3 main natural old cut diamonds and secondary rose cut diamonds, as well as two coral gemstones. The middle diamond weighs 0.15ct while the other two main diamonds weigh 0.10ct each. The rose cut diamonds weigh 0.01ct each. It is hand made from yellow 18k gold and platinum. The total diamond weight is 0.55ct estimated color G clarity SV1 The top face of the ring measures 11mm x 26mm. This ring is a US size 7.75 UK size P 1/2 The condition is very good as can be seen. WEIGHT 3.8 GRAMS Laboratory results indicate the composition of the ring is 70% gold and ring top 23% platinum, 23% palladium and 52% silver.