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Fine Jewelry University
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Gem in the Spotlight: Tourmaline
… of colors is green and pink, but many other combinations of colors exist. Parti-colored tourmaline occurs when the gem is getting formed and the environment changes. Depending on which trace elements are present, as well as their … to become electrically charged in certain circumstances. In particular it demonstrates: Pyroelectric effects: When heated, tourmaline becomes electrically charged. Piezoelectric effects: Tourmaline becomes electrically charged when under…
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Styles of Earring Backs
…. CONS Losing an Earring – The closest thing to a con for this style is that if you are a very active person, it doesn’t take a ton of force to pull the back off with just the wrong tug from just the wrong angle. For this reason those … Irritant – If used with costume jewelry made of non-precious metals, it may cause irritation to sensitive skin. Gold options found on more valuable jewelry do not typically have this problem. Lever Backs (European Backs) Lever backs, …
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Anatomy of a Ring
Knowing the different parts of a ring can help you make a better decision when choosing a new ring and it can help you know when your ring may need maintenance. It’s also a fun way to impress …to start at the point that the design stops. A jeweler will usually add or remove metal from the bottom of the shank when sizing a ring. This can sometimes be done so well that you would never know it was sized looking at the shank with …far up the sides as the design and the extent of the wear require. If you are careful with your rings (removing them when doing dishes, cleaning with harsh chemicals, gardening, etc.), the shank may last your lifetime and beyond. But, …
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How Are Lab Grown Diamonds Made?
… the imagination of scientists and visionaries alike. Just like the alchemists of old who sought to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown … they had the idea to grow diamonds in the lab like they grew in nature. High Pressure High Temperature Diamonds How does nature form diamond crystals? Nature does it very deep underground. Diamond growing naturally takes place about 100 …
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Gem in the Spotlight: Emerald
… every emerald has had some level of treatment to make the fractures less visible. It is so common that if the stone doesn’t have a report from a reputable lab (like GIA) saying otherwise, it is assumed that it has been treated with some …traditional grinding wheels used for milling sugarcane in Colombia, where these unique gems are predominantly found. What sets trapiche emeralds apart from other emeralds is their unique growth habit, featuring six black spokes radiating …
