A naturally occurring mineral found in the rocks of the earth, the chemical composition and internal atomic structure of which make it suitable for jewelry use: color, clarity, hardness, rarity and availability.

a collective term for all ornamental stones that possess attributes like beauty, rarity, durability

a mineral Minerals are natural compounds formed through geological processes

a mineral or rock or a petrified substance which when cut and polished is transformed into a dazzling material, which is mainly used as jewellery

a precious or semi-precious stone used for jewelry

a thing of rare beauty

A naturally occurring crystalline form of a mineral which is desirable for its beauty and that has value.

Any mineral or naturally occurring substance in an raw, uncut state that is capable of being a gem.

Any organic or inorganic mineral or material, excluding metal, which is used to decorative effect in jewellery. Some argue that only natural, rare or valuable items should be included

Mineral cut and polished for use in jewellery.

Any crystallized mineral structure (natural or synthetic) used in jewelry making. This includes all precious and semi-precious stones but excludes all types of plastics and glass.

A mineral or combination of minerals that display a high degree of beauty, rarity, durability and desireability.

A stone that has been cut and polished for use in jewelry and fulfills the requirements of beauty, durability, and rarity; A fine stone of unusual quality.

A gemstone (also called a precious stone) is a mineral that is valuable, rare and often beautiful. A few organic materials, like amber, coral and pearls are also considered gemstones.

A mineral or combination of minerals displaying a high degree of beauty, rarity, durability, and desirability.

Today, the common definition of a gemstone is any precious or semi-precious stone, rock or mineral. The explicit definition of a gemstone is a precious stone: diamond, ruby, sapphire, emerald and precious opal. Semiprecious stones are any other rocks, minerals, or petrified material that is not classified as precious and which is used in jewelry or collected. Some semi-precious stones include: agate, topaz, carnelian, and jasper, lapis lazuli, jade and turquoise.

Decorative material, usually a mineral, prized for some or all of the qualities of beauty, durability, and rarity. It is used synonymously with 'gem' and 'stone' .

A precious stone (or pearl) that is suitable to be cut or polished for use in jewelry.

A mineral or organic material that has the beauty conducive to ornamentation and jewelry crafting. Costume jewelry makes use of semiprecious stones and inexpensive organic materials.

A gemstone is a precious stone or mineral that is considered valuable or rare, and sought after for its beauty. Some well-known examples of gemstones are diamonds and rubies. Several organic materials like coral and pearls are also considered gemstones.

A gemstone is a mineral, rock (such in the case of lapis lazuli), or petrified material that when cut or faceted and polished is collectible or can be used in jewelry. Others are organic (such as amber, which is fossilised tree resin, and jet, a form of coal). Some gemstones which may be generally considered precious or beautiful are too soft or too fragile to be used in jewelry (for example, single-crystal rhodochrosite) but are exhibited in museums and are sought by collectors.