Search results for “China Wuzhou”

Loose Natural genuine Black sapphire marquise faceted 11.5x5.5mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. Picture Natural genuine Black sapphire marquise faceted 11.5x5.5mm stones What Is Black Sapphire? Black sapphire is a nearly opaque stone whose color is so dark that it appears to absorb all light that enters the gemstone. For example, see a black sapphire ring here. Sometimes, this stone also looks very dark blue or gray. Black sapphires come mainly from Australia and are mined in large quantities. This variety of sapphire is very cheap and is considered low grade. An Alternative to Onyx? Because of its color, black sapphire is often confused with Black onyx. Indeed, this stone can successfully act as an onyx substitute. Although both stones look very similar, onyx is actually softer, while sapphire is one of the hardest gemstones (9 out of 10 on the Mohs Scale of Hardness). Because of this similarity, you may consider getting a black sapphire for your ring or pendant if you want a stone that has the color of onyx but is much harder. Is Black Sapphire the Same as Black Star Sapphire? Black star sapphire has a similar sounding name but is actually a different stone. It is a variety of the so-called “star sapphires” – stones that due to their unique crystal structures reflect light in the shape of a star. Black star sapphire is mostly mined in Thailand, West Africa and India. Should You Buy Black Sapphire? When considering black sapphire, you should keep in mind that it is deemed a low-quality stone. The good thing about it is that it’s cheap.If you are looking for a black and opaque gemstone, this is not a bad choice because sapphire is extremely hard. Whether you will decide to give black...

Loose Natural Black Onyx Oval shape rose faceted Cut 20x7mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. Picture What's Natural Black Onyx stones? Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands: agate has curved bands and onyx has parallel bands. The colors of its bands range from black to almost every color. information from Wikipedia Color: Black, Luster: Vitreous Crystal system: Hexagonal crystal system Chemical formula: SiO₂ Hardness (Mohs hardness scale): 7 Mineral class: Chalcedony Transparency: Opaque The spiritual meaning of the black onyx stone: lack Onyx meaning is Self-control, decision making, intuition, protection. ... Black Onyx is associated with the planet Saturn, which will bring a positive vibe for those born in the shadow of the planet Saturn. It is a stone for Leo zodiac sign. Black Onyx stone will helps maintenance Leo characteristic. Where to buy Natural Black Onyx stones? We have a quite collection of loose Natural Black Onyx gemstones in popular shapes cuts at wholesale at factory price from China . Contact us for a quote. Something About Rose Cut: The rose cut (also called the rosette cut) for diamonds was invented in the 17th century and its used continued until the 18th century. The rose cut has a flat base and triangular facets (usually 24). An old diamond or gemstone cutting style with a flat base and usually two horizontal rows of facets rising to a point. Sometimes called a Dutch rose cut, it may have as many as 24 facets. An early style of cutting that is thought to have originated in India and to have been brought to Europe by the Venetians. A style of diamond...

Loose Natural Semi precious Chrome Diopside Green Color Round faceted 4mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. Picture What's Semi precious Chrome Diopside Green Color stones? Gemstone quality diopside is found in two forms: black star diopside and chrome diopside (which includes chromium, giving it a rich green color). At 5.5–6.5 on the Mohs scale, chrome diopside is relatively soft to scratch. Due to the deep green color of the gem, they are sometimes referred to as Siberian emeralds, although they are on a mineralogical level completely unrelated, emerald being a precious stone and diopside being a semi-precious stone.[9] Chrome diopside is colored by chromium, the same element that gives emerald its rich green color. This beautiful intense green color and its high refraction give the gem great brilliance and life. Diopside is found in many areas around the world and in different colors, however, gem quality chrome diopside is mined in the mountains of Siberia, Russia near diamond bearing kimberlite pipes. In 1988, this “new” green gem from Russia started to be seen in the jewelry industry and is sometimes referred to as “Russian Emerald” in the trade. The resemblance of its color to tsavorite garnet, chrome tourmaline, and emerald made it a standout, and the more affordable price made it popular. We have a quite collection of loose Semi precious Chrome Diopside Green Color gemstones wholesale at factory price from China . POPULAR SHAPES AND SIZES: * Factory direct. * Strict quality control. * Large Stock. * Customized is welcome. *All Photos are 100% real shoot. Cutting provide: all kinds of Poupular shapes/cut and also can be made in custom shapes/cuts. Delivery date: 1-2 days for in stock, 7-10 days for custom orders. OUR ADVANTAGE Factory & Manufacturer since 2008, strong productive ability....

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Lab Created Synthetic Spinel Green Tourmaline 152# dark Green Oval shape cabochon 20x7mm gemstones Wholesale at factory price from China Supplier and manufacturer What's the lab created green tourmaline Gemstones? The material oflab created green tourmaline is the Spinel, green color spinel stones belongs to the Spinel Family stone. Lab created Green tourmaline are the Color Number 149# and the Dark Green 152# of Spinel. What's Green Tourmaline Gemstones? Green tourmaline is a type of green crystal and is part of the tourmaline family, which also features colors such as red, yellow, blue, colorless and even black. Green tourmaline is considered to be the most common tourmaline gemstone, and is considered the classic color of the gem. Green tourmaline stones feature a wide range of shades within the green color range. While some of these gemstones feature a darker bottle green color, others stones can range from a very light green to a yellowish green, or olive color. Certain green tourmaline stones feature a blue-green or darker green color. Green tourmaline featuring the blue-green colors are considered to be the most favored colors and are increasingly rare compared to other shades of the gemstone. In certain jewelry settings the green tourmaline gemstone can often appear similar to the green emerald stone. The stone features a very high clarity rating as a type 1 and also has a trigonal crystal structure. The green tourmaline is rated a 7.5 for hardness on the Mohs scale, which is considered to be a good level of hardness. This means the stone is resistant to scratches as well as other abrasions. Green tourmaline is considered to be lustrous and very refractive. The stone can be located in mines in Brazil, Pakistan, Madagascar, Afghanistan, Nigeria as well as across the United States of America. The green...

Loose Natural Garnet Red China Rough Oval Shape Faceted Rose cut 13x6mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. PICTURES What's Natural Garnet Red Stones? Garnet is not a single mineral, but describes a group of several closely related minerals. Garnets come in a variety of colors and have many different varieties. However, the most widely-known color of Garnet gemstones is dark red. Natural Red Garnet is Dark-red. It is a very strong color – the color of fire and blood. and Garnet is the traditional birthstone for January, the zodiacal stone for Aquarius and the second anniversary stone. We supply two kinds of Natural Garnet Red Color Gemstones, one is China Rough Garnet Red (Dark Red), another is Mozambique Garnet Red. (Natural Mozambique Garnet is deep red with hints of orange and brown, reminds us of an autumn harvest or Indian summer.) UNUSUAL PROPERTIES: China Garnet Red and Mozambique Garnet are believed to be the ultimate declaration of love. These gemstones have a high refractive index, giving them an exceptional brilliance. Even in unfavourable lighting conditions, well cut Mozambique garnets will sparkle vividly. Garnets were thought to cure depression, protect against bad dreams, and relieve diseases of the liver, as well as haemorrhages. TREATMENT: Garnet gemstones are not enhanced, and their colours are always natural. Treatments such as heat treatment and irradiation have proved ineffective upon the Garnet gemstones. Where to buy Natural Red Garnet gemstones? You're in the right place, We supply high quality of loose Natural Red Garnet gemstones in many kinds of popular shapes/size, wholesale at factory direct price from China Suppliers and manufacturer. Something About Rose Cut: The rose cut (also called the rosette cut) for diamonds was invented in the 17th century and its used continued until the 18th century....

Loose Natural Moonstone Oval shape faceted cut 14x10mm gemstones Wholesale at factory direct price from China Suppliers and manufacturers. PICTURES What's Natural White Moonstone stones? White Moonstone History: Named for its sheen, moonstone is the most well-known gemstone of the feldspar group. Beneath the soft shimmering surface of moonstone surges a deeper, lovelier beauty: a white "moon" that rolls over the stone when it rotates. White Moonstone Geological Properties Moonstone is fairly abundant, making it an inexpensive gemstone. While its color can be similar to other stones, the distinctive shimmer makes it difficult to confuse with other materials. Moonstone faded from popularity as a jewelry-making material for centuries, before being revived by the Art Nouveau movement and, in particular, by jeweler and goldsmith René Lalique. It has retained its popularity ever since. Like the moon, this gemstone is found all over the world--from Sri Lanka, to Australia, India, Tanzania, the United States, and countries between. Moonstone was designated as the state gemstone of Florida in 1970, to commemorate the Apollo moon landings which took off from Florida's Kennedy Space Center. However, there are no deposits within state borders. Chemical Composition: K(AlSi3O8) Color: Creamy translucent white Hardness :6 to 6-1/2 (Mohs) Specific Gravity :2.56 - 2.58 Refractive Index :1.520 - 1.525 Where to buy Natural White Moonstone stones? You're in the right place, We supply high quality of loose Natural White Moonstone gemstones in many kinds of popular shapes/size, wholesale at factory direct price from China Suppliers and manufacturer. POPULAR SHAPES AND SIZES: * Factory direct. * Strict quality control. * Large Stock. * Customized is welcome. *All Photos are 100% real shoot. Cutting provide: all kinds of Poupular shapes/cut and also can be made in custom shapes/cuts. Delivery date: 1-2 days for in stock, 7-10 days for custom orders. OUR...

Loose Synthetic Watermelon Tourmaline Glass BiColor Octagon Shape Emerald cut 10x8mm Gemstones Wholesale at factory direct price from China Manufacturer and Suppliers Pictures What is Synthetic Watermelon Tourmaline Glass BiColor Gemstones? It's made of Glass & Crystal hybrid material. it's a type of Synthetic gemstone.Natural tourmaline colors are rare, but the glass stones can simulate many beautiful colors. The rough producer create this beautiful colors with Glass & Crystal hybrid material successfully , Synthetic tourmaline also called as Watermelon Tourmaline. About the Tourmaline gemstone: Tourmaline gemstone is a semi-precious mineral similar to granite. With colors ranging from magenta to teal-blue, meadow-green to vibrant yellow, and even black,tourmaline gets its name from the Singhalese phrase “tura mali,” which means, “stone mixed with vibrant colors.” Tourmaline derives from the Sinhalese term "turamali", which translates as "stone of mixed colors". The very name refers to the unique spectrum of colors displayed by this gemstone, which is second to none in the realm of precious stones. One of the most versatile of gemstones, tourmaline is available in every color, from colorless to black. It can show every tone from pastel to dark, and can exhibit various colors in the same stone. Natural Tourmaline Gemstones is expensive, and now there's a new and best substitution--Glass Tourmaline Color Gemstones, which the color is more beautiful look then the real Natural Tourmaline, and the price is very cheap. This Synthetic Watermelon Tourmaline Color Gemstones Can be made in many popular shapes, such as round, oval, Pear, Heart shape, Cushion, Emerald, marquise,etc. and Usually the sizes are making bigger than 4mm. Is there fake tourmaline?Tourmaline itself is so plentiful that it is not synthesized by laboratories. However, just because tourmaline is not lab-created does not mean that fake pink tourmalines do not exist. Glass, plastic, or cheaper gemstones...

Moissanite D Color Series:

Color: D, Colorless (Supernova),

Size: 9x11mm
Clarity:VVS
Cut: Faceted Brilliant (Heart and Arrow)

MM size & Ct weight Chart: http://m.frgems.com/loose-moissanite-stones-mm-sizes-carat-weight-chart.html

Lab Grown Pulled Czochralski Blue Sapphire Loose Lab Royal Blue Sapphire Gemstone wholesale from china Suppliers and Manufacturer. What's Pulled Czochralski Blue Sapphire Gemstone? Flame fusion creates long, tear-shaped pieces of synthetic corundum. Consisting of a mix of aluminum oxide and chromium, would have yielded a synthetic ruby. Another melt process, the Czochralski process, uses radio waves to melt the aluminum oxide. A rod tipped with a seed crystal is inserted into the mixture and slowly rotated and pulled out, creating a column of sapphire. The lab created Blue Sapphire can also be created by flame fusion but the quality and resemblance of synthetic Blue Sapphire created by Czochralski Pulled process is considered to be the best and superior to all other lab created Blue Sapphire. As It follows the same process as natural Blue Sapphire is created make it the most superior among other Blue Sapphire. Natural Blue Sapphire are rare and over-valued. It is better to buy synthetic Blue Sapphire made by Pulled method as they have exact same chemical composition and physical composition and are sold at fraction of price of natural Blue Sapphire. They also appear brighter and more vivid than natural Blue Sapphire making it the better than corundum blue sapphire stones. SYNTHETIC Blue Sapphire (Pulled Czochralski) PROPERTIES： Chemical Formula:Al2O3 Hardness: 9 Luster-Subadamantine To Vitreous Stability:Very Good Fracture:Conchoidal Refractive Index:1.762-1.77 Lab Created Pulled Blue Sapphire looks exactly like natural Blue Sapphire. Only when observed under high magnification microscope in labs, small bubbles or foreign particles can only differentiate between them. How Can Gemologists Distinguish Lab-Grown Sapphires From Natural Sapphires? Distinguishing lab-grown sapphires from natural sapphires is challenging, but each artificial creation method leaves telltale signs that an expert gemologist can identify. Melt processes like flame fusion may create sapphires that exhibit curved growth lines and...