Glossary - G
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
- Garnet
- Rich, burgundy-red garnets get their name from the Latin word for pomegranate seed. The red garnet is the birthstone of January.
- Gemologist
- A person educated and equipped to examine and grade diamonds and other gemstones.
- Gemstone
- Gemstones which occur naturally as part of a geological formation, as opposed to being created in a laboratory. These occur in many colors and compositions and can be cut to various shapes and sizes.
- Gemstone Color
- The color scale is used to describe the color present within a gemstone. For gemstones, color is described in terms of tone and hue.
- GIA
- The Gemological Institute of America is recognized as one of the world's top authorities on grading diamonds.
- Girdle
- The intersection of the crown and pavilion which defines the perimeter of the diamond..
- Gold
- Gold has been used to create jewelry for centuries and is valued for its beauty, strength and malleability. Gold will never tarnish, rust, or corrode. While naturally yellow, various alloys are commonly added to gold to create white gold and rose gold. Gold is commonly measured by karat for jewelry: 24 karat = 100% gold Too soft for jewelry, 22 karat = 91.7% gold very soft, rarely used for jewelry, 18 karat = 75.0% gold Recommended for jewelry, 14 karat = 58.3% gold Recommended for jewelry, 10 karat = 41.7% gold The legal minimum karatage considered real gold in the US.
- Golden Akoya Pearl
- The Golden Akoya Pearl is a type of Pearl formed when an irritant occurs or is inserted into an oyster or other mollusk. The mollusk forms layers of nacre over the irritant, eventually forming what we know as a pearl. Pearls are the birthstone for the month of June.
- Grading Report, Grading Certificate
- Depending on the laboratory doing the grading, your diamond document could be called a diamond grading report, Diamond Dossier®, or diamond quality report. These reports are created by gem labs who analyze the diamond.
- Graduated
- To change in gradual increments. For example in a pearl necklace, pearls on the strand become gradually larger in size as they are strung further from the clasp, and are largest in the center.
