7 Days Making Product, 3 Days Deliver to Customers Read more Lanmi Jewelry was founded in 1980, specialised in exceptional hand-crafted ring,bracelet, necklaces, earrings made of precious gemstones like emerald,ruby, tanzanite, sapphire, diamond,tourmaline, citrine etc. Each Lanmi's product is one of a kind and carefully designed to show a combination of original qualities through colour, shape, and form. Our goal is to inspire people to display the natural beauty everyday and on special occasions. Now Lanmi has grown into a team of dedicated jewelry designers, sales associates, gemologists, and more,We buy direct from the source and pass the savings on to our customers. You simply will not find a better deal on jewelry anywhere. Only Use Natural and Certified Gemstone Good Tourmaline Cut and Shape Tourmaline is often cut into long rectangular bar shapes because of its elongated crystal habit. However, tourmaline is also available in various traditional and fancy shapes and a range of cutting styles. Due to the strong pleochroism of tourmaline, lighter colored tourmaline is typically oriented with the table facet perpendicular to the main axis, in order to display the richest hue. Good Tourmaline Color Tourmaline can occur in a wide range of colors from colorless to black. Black tourmaline is actually the most common color occurrence. Most tourmaline gemstones display two or more colors in a single stone (or two tones of the same color). Good Tourmaline Clarity and Luster Tourmaline is typically transparent to translucent. Opaque material is common for cat's eye tourmaline and schorl. According to GIA, most tourmaline is 'Type II' material in regard to clarity, which means tourmaline is often included. The level of inclusions can vary depending on the type of tourmaline, with some colors being more heavily included than others. Good Tourmaline Treatment Most tourmaline is completely untreated. However, some stones may be heated to improve color and clarity. Yellow, pink and red varieties of tourmaline may be irradiated to enhance color, although irradiation is nearly impossible to detect and does not normally affect value. Heavily included rubellite and Paraiba tourmaline may be clarity enhanced Read more Global Mining Supplies As we know, Colombia is the most important emerald producing area in the world, and Sri Lanka is known as the most important gem country in the world with Brazil and Myanmar. Lanmi buy natural gemstones from the mining areas of these countries, and with strictly control on the quality of gemstones, this is an important reason for why lanmi jewelry's products are so beautiful and with competitive quotation. Experienced jeweler Ensure Every Details of The Jewelry All pieces are expertly handmade, Our jeweler has over 20 years of experience,from design to product finished (include 7 processes: design-stone choose-mould making- wax casting- polish-mosaic-inspection) they can control every details of the product. every jewelry go through intense and rigorous quality control processes to ensure that our jewelry is up to standard and built to last. We also can make the items according to your specifications. --- Ring Re-size: All of our product are available any size. --- Customized metal type and color acceptable. Metal type 24K/18K/14K/9K gold and color in white/yellow /rose gold is available for your choice. --- Gemstone is available for your choice we accept customized gemstone change.