Search Results
Fine Jewelry University Articles matching: “18 karat gold value”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
The Birthstones
… Greek word “smaragdos”, meaning green stone. Spring and green symbolized faith and fertility. The early Christians valued the emerald as a symbol of resurrection. Emerald was believed to have special powers to improve a person’s psychic …, Garnet. Garnet’s pizzazz energizes the gloomiest day. Garnet varieties brighten the world in colors of yellow to gold, bright orange to true orange, brown to cinnamon, pinks to greens, and of course many shades of red. Garnets are given…
-
Gem in the Spotlight: Tourmaline
… wrapped in silk and placed on the cheek of a feverish child would help them fall asleep. The gem was also highly valued by alchemists who, perhaps because of its pyroelectric effect, believed it to be related to the Philosopher’s Stone. … the power to grant enlightenment, give power over spiritual affairs, reconcile opposites, and change base metals to gold. Tourmaline has a special place in our hearts as California natives because it is one of the few gems that are found…
-
Styles of Earring Backs
… put in and take out. CONS Losing an Earring – The backless style is not as secure as lever backs or other similar styles Irritant – If used with costume jewelry made of non-precious metals, it may cause irritation to sensitive skin. Gold options found on more valuable jewelry do not typically have this problem. Lever Backs (European Backs) Lever backs, sometimes called European backs, have a curved ear wire instead of a straight post, and have a hinged lever piece that…
-
Anatomy of a Ring
… 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 with your naked eye. Over time, the shank can wear thin—yes, even gold and platinum can wear away. In such cases a jeweler can “re-shank” the ring by replacing the metal at the bottom of the shank, going as far up the sides as the design and the extent of the wear require. If you are careful with your rings…
-
How Are Lab Grown Diamonds Made?
… the imagination of scientists and visionaries alike. Just like the alchemists of old who sought to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown …a documented and reproducible process was demonstrated. Henri Moissan was one of the early pioneers in the field. In 1893, he claimed to have successfully made a diamond by heating charcoal to 3,500 degrees Celsius inside a carbon …
-
Gem in the Spotlight: Emerald
…Gemology of Emerald Emeralds are a member of the beryl mineral family (along with morganite and aquamarine) and are valued for their rich green color. The intensity of an emerald’s hue depends on the presence of chromium and vanadium in … and Cleaning of Emerald Like all precious gemstones, emeralds require proper care to maintain their brilliance and value. Emeralds are relatively durable, but they can be susceptible to damage from heat, chemicals, and extreme temperature…
