Warning: You appear to be using an obsolete browser, and soon you may not be able to access our website. We strongly recommend that you upgrade your browser as soon as possible.

Search Results

Fine Jewelry University Articles matching: “Pur means”

Showing only FJU Article results. Click here to show all results.

Fine Jewelry University (Show All FJU Articles)

  1. Tourmaline jewelry and loose gems

    Gem in the Spotlight: Tourmaline

    … the stone to be used in early sonar systems in the First World War as well as in extremely sensitive pressure gauges in submarines. History and Lore of Tourmaline The name tourmaline comes from the Singhalese word turamali, which means “mixed gems” owing to the fact that the gem can look like many others. Tourmaline was first discovered in 1554 in Brazil when Francisco Spinoza’s expedition confused its vibrant green with that of emerald. Thus began a long trend of …

  2. Group of loose spinel gemstones with finished jewelry

    Gem in the Spotlight: Spinel

    …generations even becoming a treasured family heirloom. Why Spinel? Despite its long history spinel is relatively new to jewelry in the sense that it is only recently getting attention on its own and not just imitating other gems. This means that the prices are still relatively low for a stone of this durability, rarity, and beauty. Spinel can be just as stunning as top-quality rubies at just a fraction of the price. Now that spinel is joining peridot as one of August’s …

  3. See the Star White Gold difference

    Star White Gold

    … made gas. White gold also has three grades. Grade 3 is off white, grade 2 is standard, and grade 1 is premium. This means that when white gold is made, it can be yellowish to light yellow. When white gold rings are new they are coated …beauty are all reasons to choose white gold. White gold compliments diamonds. White gold is bright. White gold has a pure reflexive look. White gold is white…or is it? White gold can be compared with gasoline. There are generally three…

  4. Retipping is an important jewelry repair technique

    Jewelry Repair FAQ

    …. Molecules are the key to understanding gold plating. The amount of gold used is on the molecular level. This means that only a very thin layer of gold covers the surface. Gold plating produces a layer of gold around 0.5 microns thick. A …feel for how your jewelry wears and what the best schedule to come in is. What do they add to gold to make it white? Pure gold has a rich yellow color and is very soft. When we make gold jewelry, we mix pure gold with other metals to …

  5. Unique inclusion in a lab grown diamond

    What Are Lab Grown Diamonds?

    … composition as a natural diamond. The same cannot be said of the many imitation or fake gems that are often, incorrectly, described as synthetic diamonds. This misrepresentation has seriously confused what the term “synthetic” means, and it’s why most producers of man-made diamonds prefer the term “lab grown” over “synthetic.” In order to appreciate this fully, it helps to understand a little bit about how lab grown diamonds are made. There are two techniques to grow …

  6. Group of loose amethyst gems emerald cut trillion and oval

    Gem in the Spotlight: Amethyst

    …it a durable 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. Amethyst has the same refractive index as other varieties of quartz at 1….Amethyst is known for its beautiful purple color, and it is the most important quartz variety used in jewelry. Purple has long been considered a royal color… by the presence iron and aluminum. The violet color of amethyst can range from a pale lavender to a deep, dark purple, and it is often found in shades of pale to medium purple. Amethyst is typically found in Brazil, Uruguay, and …

  7. A collection of jade jewelry and loose gems

    Gem in the Spotlight: Jade

    …different gems, with different refractive indices and chemical makeups. Both gems are silicates which basically just means that they are rocks. These particular rocks are made up of silicon and oxygen as the primary components, but the …very light green, orangey-red, black, and yellowish green. Jadeite can come in many different colors including pink, purple (often called lavender jade), blue, black, white, and the most valuable/desirable color: a vibrant green. The …

  8. A group of art deco and art nouveau rings together

    Art Deco vs. Art Nouveau Style Jewelry

    … world into artistic design, emphasizing flowing lines, asymmetrical forms, and motifs inspired by plants, flowers, and the human form. Art Nouveau, also referred to as Jugendstil and Stile Liberty among many other monikers, simply means “New Art” and it impacted almost every artistic medium. Jewelry makers embraced materials such as enamel, horn, and semi-precious stones to create pieces that were not just adornments but works of art. Many Art Nouveau jewelry pieces …

  9. Learn Secret Diamond Buying Skills From a Professional Diamond Buyer

    … looking for the absence of color or transparency (except in fancy color diamonds). A letter grade starting with “D” means totally transparent. The scale then moves down the alphabet to the next level of less transparency color. D to F are…. In a technical versus emotional sale, which one will you pay more? Yes, the emotions that motivate the diamond purchase are extremely valuable. The amount of money you are willing to spend to express your true love has nothing to do …