Search Results
Fine Jewelry University Articles matching: “What does 925 means”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
Gem in the Spotlight: Tanzanite
… low hardness and poor to fair toughness (and a property called cleavage, which is a tendency to break when struck) means that care should be taken to avoid sharp impacts. Setting it in earrings or a pendant will help protect it if the …-scale mines still operating, but their combined output doesn’t come close to that of the primary mine. All of this means that the scarcity of tanzanite is only expected to increase. So, should you get a piece of tanzanite jewelry? Our …
-
Gem in the Spotlight: Quartz
… of Quartz The microcrystalline varieties have a long tradition of being special to people. Microcrystalline means that the stone is made up of smaller crystals and not one big crystal. Sometimes you can see this structure with your naked …fairly hard gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals, which means that it can withstand daily wear and tear very well. All quartz has the same refractive index at 1.54-1.55 and is …
-
Gem in the Spotlight: Ruby
…precious stones” in the ancient language of Sanskrit. Rubies get their name from the Latin word “ruber,” which means red. This is also where rubellite tourmaline (the red variety of tourmaline) gets its name. Pliny the Elder mentioned …For much of human history, rubies have been the most prized gemstone. But, what is it about this red gem that has captivated our hearts and minds for so long? Is it ruby’s color? It’s rarity, and …
-
Gem in the Spotlight: Aquamarine
Aquamarine derives its name from the Latin which literally means “seawater,” a tribute to its beautiful blue color. As a member of the beryl family, Aquamarine has some illustrious … refractive. Aquamarine’s specific gravity is 2.72 and it has a Mohs hardness of 7.5-8.0. For comparison, this means that it is softer than Sapphire, harder than Quartz, and similar to Topaz. This makes it a very durable stone that is …
-
Gem in the Spotlight: Tsavorite Garnet
… index of 0.028. So how did Tsavorite come to be called Tsavorite? Its technical description as a green grossularite doesn’t exactly roll off the tongue. So, a proper name was definitely in order. The nomenclature of gemstones follows … commonly referred to as Tsavolite. Mythology and Lore Unlike many of the other gemstones we write about, Tsavorite does not have a rich history or lore, given its recent discovery. That said, as a member of the garnet family , there is …
-
Anatomy of a Ring
… plenty of wear while still fitting with the overall design that you like. Gallery The gallery of a ring is a somewhat ambiguous term that refers to the underside of the ring beneath the center stone. There is often a design on the top … plan to wear them together all the time. When you are looking for a ring, pay attention to how the gallery is made. Does is look substantial enough to hold the ring together? Are the gallery wires thin and easily breakable? Will it …
-
How to Sell Jewelry on eBay and Other Websites
… in case the shipper damages it or the buyer says it was like this when they got it. If it is damaged, ask the buyer what shape the box was in when they got it. Keep all of your shipping and insurance receipts in case the piece is damaged… return it with a different gem (they could switch the diamond with a lower grade or even a CZ and claim that is what they got). If you use eBay, you have to be found, do the research on the best category and keywords for your item. …
-
Is a Lab Grown Diamond Right for Me?
…). We’re here to help cut through some of the rhetoric, so you can make an informed and logical decision about what kind of diamond is right for you. First of all, if you’re not sure what a lab grown or synthetic diamond is, please check …full studied yet, it is generally accepted that it takes considerably less energy to grow a diamond in a lab than it does to dig it out of the ground. There is also no need to displace many tons of earth to create a lab grown diamond. You…
-
Gem in the Spotlight: Blue Zircon
…Zircon colors are pure and have that distinctive fire that sets it apart from other gems. The Gemology of Zircon Why does zircon have so much more fire then other colored gems? Zircon has a high refractive index (1.92-2.01). The …heat treatments. Zircon is a durable gemstone with good hardness on the Mohs scale (6 to 7.5). However, Zircon has what is known as indistinct cleavage which creates a somewhat brittle tendency that can lead to chips, especially along …
