Glossary - T
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- Table
- The largest facet of a gemstone, located on the top of the gemstone, through which refracted light escapes as brilliance.
- Tahitian Pearls
- Pearls cultivated from black-lipped pearl oysters growing mostly in French Polynesia. Tahitian pearls are known for their mirror-like luster and beautiful colors ranging from silvery-gray to purplish-black.
- Teardrop Pearl
- Teardrop pearls are off-round, typically more pear-shaped. Teardrop pearls are commonly used as a dangling part of earrings or necklaces, but they can also be drilled through the center and strung like round pearls.
- Tilt
- When tipping or rocking a diamond, the point at which the girdle can be seen reflecting through the table.
- Titanium
- An ultra-light metal sometimes used to create wedding rings and watch cases and bands, making them some of the lightest watches and wedding rings available. It is stronger and lighter than steel and is resistant to salt water corrosion.
- Tone
- A classification scale, ranging from Colorless to Extremely Dark, which indicates color intensity in gemstones. Tone should be considered along with color and saturation to help determine the quality of a colored gemstone.
- Topaz, Blue
- Beautiful blue topaz ranges in color from lighter to darker blue. For best care, avoid sharp blows, which can damage even the toughest gem, and keep your topaz away from extreme heat. Blue Topaz is the birthstone of December.
- Tourmaline, Pink
- Tourmaline is one of the most versatile gemstones available. Pink Tourmaline is an alternate birthstone for October.
- Trillion, Trilliant
- A triangular brilliant cut diamond with 44 facets.
- Troy Weight
- A traditional system of measuring the weight of gold, named after Troyes in France. Troy weight uses grains, pennyweights, ounces and pounds. The Troy ounce and pound are not the same as the US ounce and pound. There are 480 grains to a Troy ounce, and 12 Troy ounces to a Troy pound.
- Twinning Wisp
- A line visible inside the diamond that may look like a ripple. This effect is produced by an irregularity in the crystal structure.
