Search Results
Fine Jewelry University Articles matching: “Natural zircon”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
Gem in the Spotlight: Amethyst
… amethysts are now appearing in inexpensive jewelry. Because the cost of testing is higher than the cost of even the natural stones it is not often performed. Beware of stones of perfect clarity, calibrated sizes, and precision cutting. … 96 carat heart shaped amethyst. It resides in the collection of the Smithsonian Institution, National Museum of Natural History. The amethyst was most likely mined in Brazil and exhibits a deep, rich purple color. Amethyst also naturally …
-
Gem in the Spotlight: Tsavorite Garnet
… clean Tsavorite, gently scrub it with a soft toothbrush and a solution of mild dish soap and warm water. Why Tsavorite Tsavorite has all of the qualities you want in a gemstone: beauty, rarity, intrinsic value, and romance. With its natural, fresh green color in a variety of shades and scintillating brilliance, Tsavorite is one of the most beautiful green gemstones in the world. It is a garnet so it is traditionally used for January’s birthstone. But, you don’t have to be…
-
Gem in the Spotlight: Ruby
… rubellite tourmaline (the red variety of tourmaline) gets its name. Pliny the Elder mentioned rubies in his work Natural History, including notes on their durability, which means that their physical properties have been known well for over … the imagination of people for centuries. Whether you are a gem collector, a jewelry lover, or simply appreciate the natural beauty of the world, rubies are definitely a gemstone worth owning. If you are looking for a fantastic new piece of …
-
Gem in the Spotlight: Emerald
… is a treatment to the stone that makes the fractures less visible. There are many ways to do this with oiling, natural resin, synthetic resin, silicone, and epoxy being the most. The basic technique involves submerging the stone in the …donated to the Smithsonian by Mr. and Mrs. O. Roy Chalk in 1972 and can be seen on display at the National Museum of Natural History in a platinum and gold ring surrounded by 60 pear-shaped diamonds. According to workers at the Muzo mine in …
-
Gem in the Spotlight: Quartz
… and sometimes unattainably expensive? If you answered quartz to all these questions you would be right (but naturally you looked at the title and knew). Quartz is one of the most common minerals on earth. Many quartz varieties are cut into … is the “Berns Quartz,” named after the donors that donated it to the Smithsonian’s National Museum of Natural History. It is an 8,000 pound (yes you read that correctly) slab of natural clear quartz and is one of the largest clusters ever …
-
Caring for and Cleaning Your Jewelry
… it easily. I have seen diamonds only held in the jewelry by dirt and grease. If you do the cleaning in a sink, take the precaution of plugging the drain and using a small screen strainer. How to Care for Jewelry What is the hardest natural substance on earth? Diamonds. Legend says diamonds are indestructible. Diamonds are remarkable gems, hard enough to scratch everything, including themselves. Diamonds that rub together will scratch each other, so keep diamonds from …
-
Gem in the Spotlight: Aquamarine
… has an elegance and subtlety that is lost with more vibrant gemstones. If you are looking for the perfect piece of aquamarine jewelry, you have come to the right place. At Arden Jewelers, our gemologists understand and appreciate the natural beauty of color gems, and we find mountings that accentuate this beauty to its full extent. You can browse our collection online or visit the store to see even more examples of this beautiful and
-
Star White Gold
…coated with a white metal called rhodium. Rhodium is a metal very similar to platinum and rhodium shares many of the properties of platinum including its white color. The rhodium plating is used to make the white gold look whiter. The natural color of the white gold could actually be a light yellow color. The rhodium is very white and very hard, but it does wear away eventually. Regular, Plus, or Premium? The White Gold Task Force statement on the plating of white gold …
-
Styles of Earring Backs
… children may prefer an even more secure style. It also may compromise the security if the back does not properly fit the post, or through years of wear. Screw Backs (Threaded Backs) Occasionally called “threaded backs.” These are the natural upgrade from the friction back for those looking for a more secure option. The post is threaded and the back screws onto it, making a very secure mechanism that will keep your earring in your ear. PROS Security – Screw backs are among…
