Search Results
Fine Jewelry University Articles matching: “Manufacturers mark”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
Platinum
… of the metal and none of its volume is lost. In addition to its strength and density, platinum has another remarkable quality – pliability. Platinum is a symbol of true love, purity, rarity and strength. These qualities of platinum are … white luster. This helps to reflect the true radiance of diamonds. In the United States platinum is usually marked: PT or PLAT. In Europe, platinum is identified by the following marks: 950 or PT950. The History of Platinum in Jewelry …
-
How to Sell Jewelry on eBay and Other Websites
… unique and are willing to pay a high price for it. Second, the others are looking for a great bargain, wanting only to pay the lowest price. If your jewelry is unique, get a high price if not, then the bargain hunters are your market. The success of eBay helped a much older business the pawn shops. The pawn shops who sell jewelry on eBay and other online sites are willing to take much less because they buy them so cheap. Unfortunately, they may be your biggest …
-
What Are Lab Grown Diamonds?
…it is a “synthetic diamond” because it does not have the same chemical structure as a diamond. A white sapphire, marketed and disclosed as a white sapphire, is a sapphire. But, if it is used in place of a diamond, then it is a diamond … coated Cubic Zirconia has an extremely thin diamond coating only. However, this does not stop some unscrupulously marketers from calling them synthetic diamonds. Now, you know better. Lab Grown Diamonds Compared with Natural Diamonds So…
-
Gem in the Spotlight: Amethyst
… found in multiple places around the world. Heavily increased supply dropped prices consistently over the last 200 years which is why, despite its beauty, amethyst is such an affordable stone today. About 50% of amethysts on the world market are now believed to be synthetic. This is a fairly recent discovery as many low cost, high quality, deeply colored amethysts are now appearing in inexpensive jewelry. Because the cost of testing is higher than the cost of even the …
-
Frequently Asked Question about Jewelry
…is changing the very nature of diamonds. First, new synthetic (man made) diamonds of gem quality are coming into the market now. Next, companies can now change the color of diamonds. They are making the diamonds both more transparent (… diamond. Color is actually looking for the absence of color or transparency. Clarity is inclusions and natural birthmarks of a diamond and is useful as identifying characteristics. For more information see the Diamond Buying Guide . What…
-
Understanding the Diamond Buying Game
… is unique. Diamond reports don’t tell the whole story. First, it is well known that not all diamond grading labs grade with the same standard. GIA and AGS use the most technical standards. EGL uses a looser grading standard, I call market grading. In addition, EGL has a franchise like business model and different EGL labs grade wildly different. Some other labs like IGI and many more will put on a report what the customer, the diamond owner wants the report to say. So …
-
Gold Purity and The Differences Between White and Yellow Gold
…with gold. A plated piece of jewelry has a thin layer of gold over a base or non gold metal. Some plated jewelry has markings that look like real solid gold. For example, a plated piece can be stamped: 14k HGE or 18k GE. HGE means …. You can learn more about gold plating on our FAQ page. Sometimes engagement rings are stamped 14KP. The 14KP is a marking for plum gold which is a true mix of 14 karat gold. Some governments allow 13.5k to be stamped 14k so the 14KP …
-
Gem in the Spotlight: Aquamarine
…’s main pigment comes from iron. The color spectrum of aquamarine varies from very pale blue to a deep blue, the finest specimens being the deepest in color. Most aquamarine stones have a subtle green component, and in some markets, a deep greenish blue is the most desirable. Brazil is the most prolific supplier of aquamarine where it is often found in shades of blue-green. Aquamarine has a refractive index of 1.577 to 1.583 and is doubly refractive. Aquamarine’s …
-
Jewelry Repair FAQ
… that only a very thin layer of gold covers the surface. Gold plating produces a layer of gold around 0.5 microns thick. A micron is roughly equal to 4/100,000 or 0.00004 inches. Gold plated jewelry is often indicated with a “GP” marking stamped somewhere on the piece. Heavy Gold Electroplating is gold plating with a minimum thickness of 2.5 microns. Look for an “HGE” stamped on the jewelry to indicate that it is Heavy Gold Electroplated. On the other hand, gold …
