GARNET:

A family of stones having many varieties in color and their constituents

 

GEMOLOGIST:

A gemstone specialist trained in gemstone identification, grading and appraising

 

GEMOLOGY:

The science and study of gemstones

 

GEMSTONE CERTIFICATE:

An official document, which is universally accepted to verify a stone's specifications and value

 

GEMSTONE:

A general term which includes diamonds, sapphires, emeralds, chalcedony, agates, heliotropes, onyx, tourmaline, chrysolite, rubies, spinel, topaz, turquoise, zircon, and more.

 

GERLOTS:

Small, long pendant beads

 

GIA:

Acronym for the Gemological Institute of America

 

GILDING:

An object decorated with a thin layer of gold, gold leaf, or gold foil

 

GILT:

Gold or something resembling gold and luxury

 

GINNEL RING:

A ring formed of two or more linked hoops, which fit together in a manner that make them appear as one ring

 

GIRANDOLE:

A shape that consists of three pear-shaped stones (or pearls) hanging from a large stone or decorative motif, such as a bow

 

GIRDLE:

The outer edge or periphery of a fashioned stone, the portion that is usually grasped by the setting or mounting, the dividing line between the crown and pavilion, or the rim or edge of the diamond

 

GOLD:

A yellow, metallic element that occurs naturally in pure form and is used especially in jewelry

 

GOLD WASHED:

A term for a piece that has an extremely thin layer of gold, applied by either dipping or burnishing the metal, but are not plated

 

GOLD-FILLED:

A term for a piece made up of a base metal, coated in a thick layer of gold (at least 10k and 1/20th of the total weight of the piece) bonded to its surface

 

GOLD-PLATED:

A term for a piece made up of a base metal, bonded with a thin layer of gold (less than 1/20th of the total weight of the piece)

 

GOLDEN JUBILEE DIAMOND:

A 545.67 carat brown diamond, discovered in 1985, and currently the largest cut and faceted diamond in the world

 

GRADING:

Evaluation and results assigned by independent gemologists that allow sellers to assign pricing to diamonds and gemstones, achieved from comparison with master stones

 

GRANULATION:

The process of decorating a metal surface with tiny grains of metal

 

GRAVER TOOL:

A tool, similar to a chisel, used for engraving metal

 

GREEN GOLD

Gold which contains a high proportion of silver, causing a greenish hue

 

GREY GOLD:

Gold which contains a high proportion of iron

 

GRILL:

A removable jewelry piece worn over the teeth, often made of precious metal and set with precious gemstones

 

GRISAILLE:

A form of enamel, painted in monochromatic colors

 

GUILLOCHE ENAMEL:

A form of enamel work, achieved by working the metal on an engine-turned lathe to form a pattern, before enameling over the pattern

 

GYPSY SETTING:

A setting in which the stone is sunk into the surrounding metal, leaving the top of the stone almost level with the top of the metal surface