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Fine Jewelry University (Show All FJU Articles)
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Gold Purity and The Differences Between White and Yellow Gold
… of weight use mostly in gem weight (one carat is 1/5 gram). Karated gold used in engagement rings can be from 100% gold to as low as 37% gold. Gold’s karat grade is used to express the proportion of gold in an alloy or the quality of a…in other karat grades are listed in the table below: Karat Parts Gold to Alloy Percentage Fineness 9K 9/24 37.5% 375 10K 10/24 41.67% 417 14K 14/24 58.33% 583 18K 18/24 75.00% 750 22K 22/24 91.66% 917 24K 24/24 100% 999 The key to …
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What are “Blood Diamonds”?
… its zero tolerance policy towards conflict diamonds. Dedicated to eradicating the trade in conflict diamonds, it worked closely with the United Nations, governments and non-governmental organizations (NGOs) such as Global Witness and … their diamonds are from sources free of conflict. Today, 71 governments have enshrined into their national law the Kimberley Process Certification System, and now more than 99% of the world’s diamonds are from conflict free sources. …
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Jewelry Solder: What You Should Know
… together. If you have ever had a ring sized, a chain repaired, or your wedding set joined together, you have very likely seen solder in action. But, what is solder and how is it different than the rest of the metal that makes up your … metal alloys. If you haven’t already, now would be a great time to read our article on gold purity . Now you should know that the metals that make up our jewelry are actually a mix of multiple different metals in different … on gold jewelry, but the same concepts also apply to silver and platinum as well. If your ring is made out of 14 karat gold, you know that approximately 56% of it is gold with the rest being made up by a variety of different metals …
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The Difference Between White Gold and Platinum
… marked with .900 or .950 to mark its fineness. Some manufacturers state what alloy they are using like 90% Platinum 10% Iridium. How white gold and platinum start out is one of the key differences. White gold even in the best mixture … 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 karat has 25% alloy used to whiten and harden. The more alloy …
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Gem in the Spotlight: Blue Zircon
Zircon may be last in the alphabet of gemstones, but it is first in sparkle. The crystal structure of zircon creates one of the liveliest displays found in any colored gem. In fact, before … simulates were made, the colorless version of zircon was used in jewelry to mimic diamond. Why? Natural zircon is known for its scintillation, brilliance, and flashes of color or fire just like diamond. Zircon also is known for its … 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 the gem …
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How to Sell Your Jewelry
…. Jewelry looks it’s best when cleaned. Properly clean your jewelry before showing it around. If you do not know the 100% correct way to clean your piece of jewelry let a professional jeweler clean it for you. Some jewelry stores may …or grams) . The purity is the karat of gold or percentage of noble metal (gold, platinum, silver). 24 karat is pure. 10 karat is 10/24 or .410 gold and the balance of weight is the alloys. 14 karat is 14/24 or .583 gold and 18 karat is …
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Gem in the Spotlight: Sapphire
…cross on top of the British Imperial Crown. According to legend, Edward the Confessor, King of the Anglo-Saxons from 1042-1066, met a beggar one day. King Edward had nothing of value on him except for his sapphire ring, which he …golden yellow are magnificent in any jewelry. See More on Etsy › With the exception of the diamond, which measures 10 on the Mohs scale, sapphire and ruby (9 on the Mohs scale) are the toughest and most durable gemstones. This toughness…
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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… may need maintenance. It’s also a fun way to impress your friends with your vast knowledge of jewelry terms. Shank Every ring has a shank. This is the technical term for the band of metal that encircles the finger. There would be no … 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 …
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How to Tell If a Diamond Is Natural or Lab Grown
… are lab grown diamonds that are not Type IIa, and there are natural diamonds that are Type IIa, so it’s not a 100% conclusive test. Also, a diamond has to be completely loose (unmounted) to perform the test. Photoluminescence Spectros…perfect. But, in the hands of our skilled gemologists, it is an absolute game changer. If you need to be absolutely, 100% sure whether a diamond is lab grown or natural, you can send it to specialized gem labs for testing. DeBeers and …
