In fact, 8.5mm beads are not much different from 8mm when look by eyes.Īs the error range of beads size, the quantity may have few errors in the same length beads strands, error range of 1~3 beads.įor Example: 3 strand of 15 inch 6mm Natural Yellow Jade beads, beads quantity is 59pcs, 60pcs, 61 pcs, 62pcs For example, the round beads with a described size of 8mm, the actual size in a strand may be range of 7.8mm~ 8.75mm, some maybe 8mm and some maybe 8.2mm or 8.5mm. But please note that the error for each bead will not be less than 0.2mm of the described size, and no more than 0.75mm of the described size. Meanwhile, cutting or polishing can also make each piece of gemstone vary in size, especially when they are made of different batches. Due to the naturality, the stones may have tiny flaws. Natural gemstones or semi precious stones come from mineral. Tips: if you want to purchase a natural gemstone with natural color, you can click attribute of “Natural” and “Undyed”. If it is a imitation gemstone, its title must contain the name of the original material and imitation stone. If it is a assembled gemstone, its title must contain the word ” Assembled”.ĥ. If it is a synthetic gemstone, its title must contain the word ” Synthetic”.Ĥ.
If it is a natural gemstone with treated color, its title must contain the word ” Natural” and ” Dyed” or ” Dyed & Heated” or ” Electroplated”.ģ. If it is a natural gemstone with natural color, its title must contain the word ” Natural”.Ģ. The Trade Name of Gems is another name widely used and generally recognized in gemstone trade, for example Larimar is the trade name for a rare blue variety of silicate mineral pectolite.įive main criteria for gemstone product titles:ġ. Most gemstone names are based on the mineral, such as Garnet, Turquoise, Lapis lazuli, Malachites, etc. The Classic Name of Gems is a mineralogical, petrological, material and traditional gemological name of gem varieties. Gemstone Names are divided into classic name and trade name. Dyed Jade is commonly treated in this manner.ĭyed & Heated: To improve or change the color of gemstones by heating and dying process, such as most Red Agate, Black Agate and Red Tiger Eye are dyed and heat-treated.Įlectroplated: The surface of gemstone is covered with a thin film by plating to change its color or luster, such as Electroplated Quartz Crystal, Electroplated Lava Rock. Color treatment of our gems is divided into Dyed, Dyed & Heated and Electroplated.ĭyed: Infiltrating color-causing substances (such as colored oils, dyes, etc.) into gemstone by chemical methods to improve or change the color of gemstones. Imitation Stones are gemstones or other materials used to imitate the look and color of a kind of stone, but possess neither their chemical nor physical characteristics.Įxcept for cutting and polishing, gemstones are often treated to enhance the color, luster, clarity, optical characteristics, durability or usability of the stone.
The components may be natural or man-made materials. Synthetic Gemstones are man-made crystals, non-crystalline solid or aggregates, which may be with chemical, optical and physical characteristics of its natural mineral counterpart.Īssembled Gemstones are made of two or more pieces of materials by artificial splicing that give the impression of gems. Our manufactured stones include synthetic gemstones, assembled gemstones and imitation stones. Manufactured Stones are materials that are produced wholly or partly by hand for use as ornaments.
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