(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: 둥근, 타원형, olive, pear, heart, square, random, 등. 일반적으로, jade and jade, 등., are commonly curved, especially the oval ring or pendant surface, because it is […]
