I Jewelry Information – for Sterling Silver, Gold, Gemstones, Fashion, General Jewelry and Jewelry Terms
I Jewelry Information
I.D. bracelet: I.D. is short for “Identification”, so an I.D. bracelet is simply a curved plate engraved with the name or initials of the person wearing it.
IGI: Stands for the “International Gemological Institute”. It is the largest independent gem certification and appraisal service in the United States.
Igneous: A substance produced under conditions involving intense heat, such as that which is found in volcanoes. Igneous rock is rock formed by solidification from molten magma.
Import: The act of bringing or carrying in goods from an outside source for trade or sale, especially in regards to goods from a foreign country.
Inclusion: A naturally occurring flaw, (feather, fracture, fissure, carbon spot, or cloud), within a diamond or other stone. The test for clarity looks for these flaws.
Indicolite: Blue Tourmaline.
Indian Silver Jewelry – We are Manufacturers, Exporters and Wholesale Suppliers of Indian Sterling Silver Jewelry with or without Semi Precious Stones like earrings, rings, pendant, necklaces, bracelets, Anklets, Beads Jewelry & Fine Antique Jewelry, beaded jewelry, costume jewelry, Fashion Jewelry in all designs.
Ingot: Metal cast into a bar or other shape.
Inlaid: Past tense of Inlay.
Inlay: A decorative technique in which part of the surface of a piece of jewelry, furniture, or ceramic is cut away and stone, mother of pearl, or some other substance is imbedded into the hollowed-out area so that it is level with the surface of the piece. This is often seen in the decoration and enhancement of acoustic guitars. See also channel inlay.
Intaglio: Italian for “carving”, an Intaglio is a carved gem wherein the design is engraved or carved into the object so that it sits below the surface plane of the material, as opposed to a cameo in which the design is raised from it’s background, in relief. This technique was often used for seals, which made a raised impression in wax used to seal a letter or authenticate a document. It was commonly attached to watch fobs, since the watch fob is a good manner of carrying a seal. Once seals fell out of common use, the intaglio tended to face out to the viewer rather than down as on a seal. Some of the most commonly found Victorian intaglios were carved in carnelian, an orange-brown variety of chalcedony.
Invisible Set: A method of setting square gemstones side by side in two or more rows within a metal border or frame so that they are flush against one another with no metal separating them.
Iolite: (also called dichroite or water sapphire). A silicate of alumina, iron, and magnesia which is usually violet-blue, but can be deep blue, light blue-gray, and yellow-white. Makes a beautiful transparent gemstone which is remarkable for its dichroism.
A display of lustrous rainbow-like colors. The colors seen in an oil slick or mother of pearl are good examples of iridescence. The spectrum of colors change as the observers viewing position is altered. Synonymous with “Pearlescent”.
Iridium: A metal of the platinum family often alloyed with platinum to improve workability. Pieces marked “80% Plat. 20% Irid” would indicate that the alloy is 80 % platinum and 20% iridium.
Iron: The most common metallic element which usually appears dark brown, from oxidation or impurity, but when pure is silvery-white. Iron is found abundantly in nature, usually in combined forms such as hematite, limonite, magnetite, and taconite. It is frequently alloyed in a wide range of important structural materials like cast iron, steel, and wrought iron. It is easily oxidized (rusted) by moisture, and is attacked by many corrosive agents.
Iron Pyrite: See Pyrite.
Irradiation: The process of bombarding a gemstone with X-rays, gamma rays or streams of subatomic particles in order to change the stone’s color.
Ivoride: See French Ivory.
Ivorine: See French Ivory.
Ivorite: See French Ivory.
Ivory: A hard, smooth yellowish-white substance usually referring to elephant tusks, but also embraces walrus tusks, narwhal (an artic toothed whale having a black-spotted whitish skin and in the male, has a long spiral tusk) and whales tooth. These ivory sources would be protected in most places.
Ivory, French: See French Ivory.