But other gem favorites, like blue sapphire, are traditionally heated to permanently enhance its color. GIA's D-to-Z color grading system measures the lack of color by comparing stones under controlled lighting and viewing conditions to master stones of established color value, with D colorless and Z light color (yellow or brown). Amethyst is the best known and most valuable form of quartz. In this video by Rio Grande, gem artist Glenn Lehrer shows you how to create a bezel setting for your TorusGem™️ using dapping techniques. If you're in the market for classic faceted gemstones or artisan-cut specialty gemstones, we have high-grade natural gemstones like rubies, emeralds, sapphires and specialty gemstones like Glenn Leher's TorusRing™ and the Vortex™ cut by Sherris Cottier Shank. Bookmark this page because new, specially priced gemstones are added frequently. Heat treatment is the most common process, and typically stable and permanent. Remember that if we don't carry it, we know where to find it. All rights reserved. Swarovski®️ Crystals faceted beads offer remarkable color and brilliance for your designs. Founder of the New Approach School for Jewelers, Blaine Lewis is among the most sought-after stone-setting instructors in the jewelry industry. Strung in earrings, interspersed with smooth pearls, or suspended in a strand made entirely of these tiny works of art, the Galatea pearl is sure to be a favorite among your discerning clientele. Maybe you're looking for a peridot mined in the USA or you're not sure what colors of quartz are available in the size you need. Rio Grande’s selection of Swarovski® Crystals makes it easy to add that infamous sparkling brilliance to your jewelry designs. Sign up for our email list for the latest jewelry-making updates from Rio Grande, including news about sales, product releases, events and more. Toll-free: 800.257.7026Phone: 505.839.3188Fax: 505.839.3297Email: gemstones@riogrande.com, Did you find it helpful? A crack near the surface may weaken durability and brilliance, while inconspicuous inclusions may have no affect. Our new American Mined™️ Rodeo Queen Ruby™️ originates from a mine north of Cheyenne, Wyoming. When shopping for pearls, choose from full-drilled pearl strands or half-drilled freshwater, Tahitian or Akoya (saltwater) cultured pearls in a wide variety of sizes, shapes and colors. One of the few gems not formed as a crystal, opal is composed of minute light-diffracting spheres of silica stacked in layers like a prism, refracting white light to produce a rainbow effect. In addition, the U.S. Patriot Act requires all suppliers of precious metals to maintain full contact information for all of its customers. But in gem varieties like emerald the lack of inclusions is rare. Contact Rio Grande Diamond Source—a personalized service dedicated to helping you find the perfect diamond. Gem Source Team Gemologist Shannon Demoulin touts Rio Grande's extensive catalogue as a jeweler's "best friend," their go-to guidebook for information ranging from durability and treatments to setting and care considerations for all things jewelry making. Rio Grande is also a great resource for cabochons, cameos and pearls. A Berkshire Hathaway Company. We also carry a wide variety of agate cameos—several of which are replicas of the famous works of Art Nouveau artist Alphonse Mucha. Look to Rio Grande Gem Source, your personalized service to help you find the perfect gemstone for your customers. Rio Grande also is a member of the Responsible Jewelry Council (RJC), certified for its business practices and vendor compliance efforts. Rio Grande jewelry making supplies for the best in jewelry findings and gemstones, tools, jewelry supplies and equipment, and the packaging and display items essential to the success of your jewellery business since 1944. Your password needs to be updated. One of the most common and varied minerals on the planet is quartz, with its most popular and valuable types, amethyst and citrine. Customers today, especially Millennials, who will soon be the largest consumer demographic, want to know this information. Because being a jeweler is a never-ending journey, Demoulin says Rio Grande's website is constantly adding to its article and video series, data sheets, resource links, and inspiring stories for jewelers who are just starting out and those who've been doing this for decades. A Berkshire Hathaway Company. Fancy shapes are popular in diamonds and especially colored stones, including oval, pear, cushion, square princess, emerald and marquise; baguettes and briolettes; trillions; rose cuts; and cabochons. Rio Grande sells diamonds only to members of the jewelry trade who have been established by Rio as qualified diamond buyers. Checkerboard faceting features square facets across the entire crown on the gemstone; this faceting is ideal for larger, increasing the scintillation effect. A bad cut can make a gem look dark or washed out. Or perhaps you are looking for a ruby or sapphire and need help with the grading system. With more than 250 clearance gemstones on our site, you'll find a new shape or material to infuse inspiration & encourage you to try a design you've been meaning to create. The size of a gemstone is generally expressed by its carat weight, with one carat equal to one-fifth of a gram. See current pricing on all products based on published daily metal markets. Sign up for our email list for the latest jewelry-making updates from Rio Grande, including news about sales, product releases, events and more. Some gems are heavier than others, so the same carat weight may be a different size. Our diamond selection includes natural white diamonds, colored diamonds and lab-created diamonds. Amethyst, citrine, rock crystal, and a huge variety of agate come from the State of Rio Grande do Sul. Create and update a 'wish' list of products you have selected but are not yet ready to purchase. © 2020 RioGrande.com. FYI: A 6.5mm round diamond equates to 1 carat, a 6.5mm round sapphire equates to 1.41 carats. Among the gemstones that are most popular in fine jewelry are varieties that come in a range of colors, notably diamond, sapphire, garnet, spinel, tourmaline and zircon. From agate to zircon, there are about 200 different varieties of natural gemstones according to the latest edition of Walter Schumann's "Gemstones of the World". Reflecting a spectrum of colors in one stone, opal is known as the "Queen of All Gems". Sherris' goal is to produce gemstones that are "sleek, modern and mysterious." From artisan cuts to classic faceted, look no further than Rio Grande. These rare gemstones are painstakingly handcarved to create eye-catching centerpieces for one-of-a-kind designs. Access and print your order history and invoices any time you need them. From artisan cuts and specialty stones (such as, Speaking of our service experts, we have a team of, your personalized service to help you find the perfect gemstone for your customers. Ethical dealers use the treatment disclosure codes from the American Gem Trade Association (AGTA) and International Colored Gemstone Association—important resources for gem information, and organizations of which Rio Grande is a member. Also with an inverted faceted cone carved into its back, the Quasar™ has a smooth, concave depression cut into the table of the stone. A stone that stands apart from other citrine varieties, red citrine is a gem as fiercely independent as the gaucho culture of its homeland. Access and print your order history and invoices any time you need them. Not all are suitable for jewelry, with some gems too soft, brittle or easily damaged, and best kept as collector stones. The crown of the Vortex cut is smooth and rounded, similar to a high-dome cabochon. So if don't find what you're looking for on our website—no matter the size, shape, color or grade—just give us a call and our expert gemologists will find it for you. Key in colored stones, it 's too shallow and wide, it will washed. Which are replicas of the center of a galaxy bringing out the best purchasing decisions to add that sparkling. Pearls in a wide range of styles a pearl oyster, but many fine gems are there! 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