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Terms for subject Jewelry (593 entries)

toughness	A term that refers to an item's resistance to damage or breaking.
Tourmalinated quartz	Quartz that features rutilated black tourmaline inclusions. It was once revered for its magical qualities said to be able to balance the yin and yang while dispelling negative energies.
tourmaline	A complex crystalline silicate containing aluminum, boron, and other elements.
trained grader	A person who has a basic understanding of gem grading, but does not have the advanced experience of a skilled grader.
translucent	Clear; permitting the passage of light.
transparency	The quality or state of being transparent.
Trapiche emerald	Often found in the mines of Columbia, these are the only Emeralds with a naturally occurring star effect. Though it resembles an asterism, a trapiche occurs as the crystal grows and is not a reflection across the surface of the gem. It is within the gem. A trapiche emerald is the result of an emerald crystal that contains the impurity lutite, and as the crystal grows in its hexagonal shape, the dark lutite is pushed towards the center of the emerald creating the star-like effect. The emerald takes its name from the tool, called a trapiche, that Columbians use to grind sugar. It resembles a spoked wheel.
tri-color	Also referred to as tri-tone, this type of jewelry refers to a piece of jewelry crafted from three different types of metal. Tri-color jewelry is popular with woven or tressere jewelry as it artfully combines the three different metal types.
trichroic	Refers to a gem that appears three different colors or shades when viewed from different directions.
trinity design	Also called the Trillion Design, when three stones are placed in a triangle pattern with two on the button and one on the top.
triple teardrop	S-style design wherein three teardrop shapes come together to form one larger teardrop.
true to size	An industry term used when a ring is exactly a specific size and not slightly smaller or larger.
tsavorite	Can be considered a "new" gemstone since it was unknown before its discovery in Kenya in the 1960s. It is a member of the garnet family group in which trace amounts of vanadium and chromium provide the green color.
twilight mystic topaz	Type of mystic fire topaz that is warm and vibrant with flashes of orange and pink and gold fire on a orange base gem.
twin resistant	A watch that is not only water resistant but also mud resistant.
twist ring	A ring that features a woven or twisted appearance.
twisted bangle	A bangle bracelet that features a twisted design.
ultrasonic cleaner	Used to clean jewelry by using energy released from the collapse of millions of microscopic cavitation bubbles, which are formed when ultrasound passes through the cleaning liquid.
under gallery	The portion of a piece of jewelry that is not seen while it is worn. Often, personal engravings are placed here to keep the message private.
untreated	Refers to a gemstone that has received absolutely no treatments. It has not undergone either chemical or physical changes and the color of the stone is completely natural.