RING in white gold and yellow gold 750 (18 KT) Green Cabochon TOURMALINE of 3,63 Carats and DIAMONDS for 0,12 Carats .- GEMMOLOGICAL CERTIFICATE

Cabochon cut : Means a polished dome shaped gemstone stone, without facet.
Size : Ring size. It is often possible to reduce or enlarge the size of the ring.
Diamond : In mineralogy, diamond is an extremely rare, precious and hard (named after the ancient Greek "unbreakable") metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice.
Gold : Because of the softness of pure gold, it is alloyed with silver, copper or palladium. The proportion of these other metals give yellow, white gold. Without precision, the gold used in jewelry is 18 K, corresponding to 75% pure gold.
Yellow gold : Yellow 18K gold is an alloy contianing 75% of pure gold, whereas 14K gold contains only 58,5% of pure gold.