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Fine Jewelry University Articles matching: “Price per Platrium g”
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Fine Jewelry University (Show All FJU Articles)
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Measuring Gold Weight
The old riddle goes: what weighs more a pound of feathers or a pound of gold? Some say gold because it is heavier. Others say they … a pound so they weigh the same. Both are wrong. How can this be? Tradition. Gold is not weighed in the ordinary weights. Gold is weighed in the troy measurement system. One ounce of gold is not the same as the ordinary ounce (really …both to a uniform system. A gram or gramme is a standard metric unit of mass. An avoirdupois ounce converts to 28.34 grams approximately. The troy ounce is 31.1 approximately. You say, “Aha! Gold weigh more, so a pound of gold weighs …
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How to Tell If a Diamond Is Natural or Lab Grown
…is easy to identify them because they aren’t diamonds. But, with lab grown diamonds, the chemical structure and properties are all the same as natural diamond, so it becomes much more difficult to differentiate them. Responsible … are sold as natural diamonds. But, it is important to know that the majority of lab grown diamond manufacturers are perfectly legitimate and honest organizations that are upfront about their products. Some even laser inscribe all of …
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Gold Purity and The Differences Between White and Yellow Gold
… timeless jewelry. Gold can be bent and molded into elegant engagement rings to show the eternal affection of one person to another. Gold is an expression of love. Gold Purity Is all gold the same? We hear a piece of jewelry is pure gold…) gold is 24 karat. The proportions 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 …
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Gem in the Spotlight: Garnet
Garnet’s rich history and varieties demonstrate garnets are more than the little red gem. Garnets allow for great personal diversity and style. The wide world of garnets invites all to become a garnet fan. Garnet is January’s birth …, brown to cinnamon, pinks to greens, and of course many shades of red. Garnets are given as symbols of consistency, perseverance and good health. Garnet is also regarded as the gem of faith, constancy and truth and possesses many … to relieve fever and yellow garnet was the prescription for jaundice. Legend holds garnets guard travelers against perils during the journey. The traveler is also protected against diseases and preserves their honor and health. All …
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Gem in the Spotlight: Tsavorite Garnet
… grossular garnet with a chemical make-up of CA 3 Al 2 (SiO 4 ) 3 . It has a Refractive Index (RI) of 1.740 and a dispersion index of 0.028. So how did Tsavorite come to be called Tsavorite? Its technical description as a green …, and metabolism. Care and Cleaning Tsavorite is rated as “good” for everyday wear. You should avoid sudden temperature changes and never steam clean your Tsavorite Garnets. Ultrasonic cleaners are usually safe unless the gem has a …
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What Are Lab Grown Diamonds?
… made. There are two techniques to grow single crystal diamonds. The first and oldest is the High Pressure High Temperature (HPHT) technique. This process starts with a seed of diamond material and grows a full diamond just like nature … are highly advanced technologies that produce crystals with the exact same chemical structure and optical properties as natural diamonds. Now, let’s compare lab grown diamonds to some of the other gems that you might have heard of. Lab …
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Star White Gold
… (really the lowest), mid grade, and premium. In addition, not all gas is created equally. We have all had the experience of poor performance due to poorly made gas. White gold also has three grades. Grade 3 is off white, grade 2 is … 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 …
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Gem in the Spotlight: Opal
…, here are the Mohs hardness values for some other gemstones you may know: Diamond 10, Sapphire 9, Amethyst 7, and Peridot 6. Turquoise is about as hard as opal, but you would need to consider Pearl or Amber (both 2.5) to find a commonly… safe and strong. Doublets and triplets are much less expensive than other forms of opals because you only need a paper thin slice to make them. History and Lore of Opal Opal’s rich history is intertwined with beliefs and legends that …
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Gem in the Spotlight: Jade
… finest of all green jadeite colors is a saturated emerald green that is almost transparent, and it is called “Imperial Jade.” Jade is one of the top selling gems in Asia, but its beauty and cultural importance have landed it a spot as … by the individual piece instead of by weight like most gems. This is because even small differences in color or imperfections can drastically change the value of the gem. History and Lore of Jade Jade’s incredible toughness has made it …
