India (India): India is one of the world’s major gem suppliers, rich in diamonds, zafiros, berilo, cordierita, golden emeralds, rubí, various garnets, amethysts, olivines, espineles, and electrical Stone, topaz and opal. China: China is a pearl supplier, and is rich in high-quality olivine, nephrite and sapphire. It also produces aquamarine, turmalina, granate, slabstone, turquoise and […]
