Bague en or jaune 18 ct ( 750/1000) 1 Aigue marine sertie clos à env 2,38 ct

Yellow gold : Yellow 18K gold is an alloy contianing 75% of pure gold, whereas 14K gold contains only 58,5% of pure gold.
Carat : The carat (ct) is a unit of mass equal to 2 g. Carat is used for measuring the weight of gemstones.
Aquamarine : Blue variety of Beryl (Silicate). Aquamarine is named after it's bleu color similar to the blue of the sea. It is a different gemstone than blue Topaze.