Search Results
Fine Jewelry University Articles matching: “Sterling silver sapphire”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
Gem in the Spotlight: Sapphire
Few gems capture the imagination as does sapphire. Sapphire‘s beauty inspired people to wonder. Ancient cultures had many lore and beliefs about the sapphire. The … the earth rested on a giant sapphire whose reflection gave the sky its color. Ancient priests and sorcerers honored sapphire above all gems, for this stone enabled them to interpret oracles and foretell the future. Symbolizing truth, … partners put great faith in the stone. If its luster dimmed, one knew his or her spouse had been unfaithful. Sapphire refused to shine when worn by the wicked or impure. Known as the celestial gemstone, the sapphire has been treasured for …
-
Laser Jewelry Repair
… can fix even costume jewelry that was unrepairable just a few years ago. Jewelers used to discourage people with sterling silver and CZ pieces that broke from doing repair work. Now they can be done. The laser gives us the ability to fix … of metals can be laser welded? All the traditional metals can be laser welded, including base metals, karat gold, sterling silver, palladium and platinum, offering a complete array of design, redesigns and repair options. Platinum …
-
Alternative Metals for Men’s Jewelry
… 6,191 degrees Fahrenheit. Tungsten is rated at about a 9 on the Mohs scale of hardness which is the same as Ruby or Sapphire and just below diamond (which is 10). Like these gems, tungsten is very scratch resistant and will not bend out of …come in around 7-8 on the Mohs hardness scale which is about the same as quartz or topaz but softer than tungsten or sapphire. Like most alternative metals, cobalt chrome bands are hypoallergenic and biocompatible. But, in our experience, …
-
What Are Lab Grown Diamonds?
…. Simulants are gems that look like a real, natural gem but are actually another material. So, a clear or white sapphire can be a diamond simulant because it looks like a diamond. That white sapphire can be natural or, here’s the trick, …natural vs synthetic), but that it is a substitute that looks like another gem. So, we can say that a man-made white sapphire is a “synthetic sapphire” or that it can be used as a “diamond simulant,” but it would be incorrect to say that it …
-
Measuring Gold Weight
… of drugs, precious metals and gemstones. The name comes from the French city of Troyes. The noble metals (gold, silver and platinum) all use the troy system. A troy ounce is 20 pennyweights. The pennyweight was the weight of a silver penny…
-
Jewelry Solder: What You Should Know
…. For the sake of simplicity, we will focus our discussion 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 …, and the chlorine reacted with the base metal alloys in the solder but not with the more noble (tarnish resistant) silver alloys in the rest of the ring. This caused all of the solder to discolor and become visible. After a few days or …
-
Gem in the Spotlight: Spinel
… out of the shadows and be appreciated in its own right, and we can see why. Its colors rival even the best rubies, sapphires, tourmalines, and other more popular gems. For only the 3rd time in the last one hundred years, the industry is … of all time. Spinel was first made in a lab over 100 years 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 …
-
Caring for and Cleaning Your Jewelry
… as 1 the softest. Pure gold (24 karat) is Mohs 2.5, 14 and 18 karat list at Mohs 3. Platinum list at Mohs 4.33. Sterling silver list at Mohs 2.5. This shows why jewelry metals get scratched by things like hard toothbrushes and dirt (most …
-
Jewelry Repair FAQ
… way it did before a gemstone fell out; who wouldn’t? That’s why we have literally 100s of carats of loose diamonds, sapphires, rubies, opals, pearls, and more in all shapes and sizes to choose from when selecting a replacement stone for …by the jeweler’s torch. However, with our laser welder we are able to retip prongs next to many gemstones (diamonds, sapphires, and rubies for example) without removing them, saving you time and money. Can my costume and fashion jewelry be …