Glossary
| Samson
Jewellery Glossary |
|
| GA | Gemmologica Association of Great Britain and Ireland. |
| GIA | Gemological Institute of America. |
| Geode | A boulder, usually spherical, containing agate and often crystalline quartz |
| Gilding metal | A base metal alloy usually containing copper and zinc from which jewellery is fashioned and then gilded. |
| Gilt | A thin layer of gold applied to base metal, nowadays usually in an electrolytic bath. |
| Girondole ear-rings |
Triple pendant ear-rings. |
| Girdle | The edge of the circumference of a gemstone that divides the table from the pavilion. |
| Gold-filled | An American term used to describe rolled gold. |
| Gold plating | A gold skin applied to base metal, often used to imply a better quality than gilt. |
| Grain | The unit of size used for measuring pearls. A grain is equivalent to a quarter of a carat, or 0.05 gram. Cultured pearls are usually measured in millimetres. |
| Granulation | Decoration consisting of tiny balls of metal for which the Etruscan jewellers were famous. |
| Guard ring | A ring worn on top of a more valuable ring to prevent its loss. |
| Gypsy ring | A wide gold ring with a single diamond deeply embedded in it. The stone is often made the centre of an engraved star. |
| Heat-treatment | Many gemstones are heat-treated to improve or alter their colour. The colour change is usually but not invariably permanent. |
| No index for "I" |
Samson Jewellery
Room 1013A-1015, Level 10, Landmark
North, 39 Lung Sum Avenue, Sheung Shui, Hong Kong
Tel: 852-27284562 - Fax: 852-27250911