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DIAMOND, noun Dimond. [Latin , Gr. See Adamant.]

1. A mineral, gem or precious stone, of the most valuable kind, remarkable for its hardness, as it scratches all other minerals. When pure, the diamond is usually clear and transparent, but it is sometimes colored. In its rough state, it is commonly in the form of a roundish pebble, or of octahedral crystals. It consists of carbon, and when heated to 14 degrees Wedgewood, and exposed to a current of air, it is gradually, but completely combustible. When pure and transparent, it is said to be of the first water.

2. A very small printing letter.

3. A figure, otherwise called a rhombus.

DIAMOND, adjective Resembling a diamond as a diamond color; or consisting of diamonds, as a diamond chain.