(1) Curved surface type. Cabochon gems are also called plain or convex gemstones. The gemstone has a convex surface. According to the waist shape, it can be divided into: okrągły, owalny, oliwka, gruszka, serce, kwadrat, random, itp. Ogólnie, jade and jade, itp., are commonly curved, especially the oval ring or pendant surface, because it is […]
