These included diamonds, emeralds, rubies, sapphires, and other precious gemstones. They were full of gold jewellery encrusted with diamonds, rubies, sapphires and emeralds. It is made of gold with diamonds, rubies, emeralds, sapphires, enamel and pearls. Weighing the gold piece is encrusted with rubies, sapphires and pearls. Myanmar produces precious stones such as rubies, sapphires, pearls, and jade. Other gemstones, such as sapphires, rubies, and emeralds have different systems. Certain stones such as rubies, sapphires, tourmalines and topaz are optically anisotropic. Red corundum stones also occur, and are called not sapphires but rubies. Rarer works from thimble makers utilized diamonds, sapphires, or rubies. Star sapphires and rubies get their asterism from rutile impurities present. Fracture filling has been in use with different gemstones such as diamonds, emeralds and sapphires. It is a simply designed golden cross set with precious stones (sapphires, rubies and pearls). This masterpiece incorporates 1,300 pearls, 300 sapphires, 300 emeralds, and 400 garnets. In Sri Lanka, lighter shades of rubies (often "pink sapphires") are more commonly found. It is, however, still orders of magnitude cheaper than the highest grade sapphires or rubies.