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Fine Jewelry University Articles matching: “Process cut 2 carat solitao”
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Fine Jewelry University (Show All FJU Articles)
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Gem in the Spotlight: Spinel
…ago when scientists who were trying to synthesize blue sapphire wound up creating spinel by mistake. Since then many processes have been used and perfected to create spinel in even more colors than it is naturally found in. Because of how … separate the two. Natural spinel has a refractive index of 1.718 while its synthetic counterpart (depending on the process used) has a refractive index of 1.728. In recent years, scientists have developed new techniques to synthesize sheets…
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How to Clean Pearl Jewelry
… one pearl may become lost. Any dirt that has become caught around the knots should be removed with a toothpick very carefully. Pearls should be dried on a lint-free towel, laying them on an absorbent towel should hasten the drying process. If the pearls are worn frequently, they should be re-strung on a regular basis and they should always be strung on silk. It may deteriorate faster, but it will not attract dirt or grime as quickly and it will not stretch. Pearls should …
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Gem in the Spotlight: Blue Zircon
…vacuum to the speed of light through a transparent gem. Light is bent as it moves from air to the gem material. This process breaks light into its spectral hues like a rainbow. Then the rainbow effect is broken and focused by the facets of … 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 refractive index (abbreviated RI) of a gemstone is its optical property that refers to the ratio of the …
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The Difference Between White Gold and Platinum
… a shine for long. All white gold jewelry and most platinum jewelry are alloyed. The alloying is also a hardening process for both metals. The hardeners used in platinum is either 10% or 5% of the mix. 14 karat white gold has 42% and 18 …The amount of alloy mixed with gold is called its karat. The key to understanding gold karat is the karat value over 24. An example is a 14-karat gold wedding ring. It is 14/24, which equals 58.3% gold and 41.7% alloy. The white color …
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Is a Lab Grown Diamond Right for Me?
… years wore natural diamonds. A natural diamond has likely spent millions of years under pressure, being refined by processes of the earth before it was discovered and brought to the light. Some of the romance is lost when you compare this …I have heard some in the industry refer to lab grown diamonds as fakes (also completely false). 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…
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Anatomy of a Ring
… between two straight pieces of metal on either side of it (this style is most commonly seen with square or princess cut diamonds). As you may have guessed, all styles of head can wear thin over time and may need to be built up by a … of cathedral arches. Some are sleek and plain, some are wider and covered in accent diamonds. The size and cut of the center stone also may vary, but when you see those arches of metal rising up toward the center, you’ll know, it’s a …
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The Magic of Polarized Light
… are a few of the places you will find polarizing filters in everyday life: Sunglasses: Polarized sunglasses help cut through reflections in water and glass so that we can see easier. Camera lens/filters: Polarizing lens filters reduce … only allows one angle to pass through at a time. This helps confirm that a stone is doubly refractive and not just cut with unusual, doubled facet junctions. The Elegance of the Polariscope Another gemological tool that uses polarized …
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Laser Jewelry Repair
… per second. All this gives the master jeweler the ability to use the laser with the skill of a micro surgeon. The laser gives our jewelers the precision he needs to work around our customer’s jewelry treasures. Arden jewelers can cut with the laser, weld two pieces of precious metal together, or do fill-in work to smooth out gaps and rough spots. The work is so smooth that even an expert can’t detect the repair work once it is polished. The weld joints created by the …
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Gem in the Spotlight: Tourmaline
…variant of tourmaline has a pink center and green edges that resembles a watermelon. Crystals of this type are often cut in slices to display this unique property. One of tourmaline’s most distinctive traits is its ability to be …unlike emerald and aquamarine, for example, which are members of the beryl family). It has a refractive index of 1.624 to 1.644 and a Mohs hardness of 7 to 7.5 which makes it softer than topaz or sapphire and harder than tanzanite or …
