Yes
Confidence votes 83.4K. A diamond is a crystalline mineral form of the element carbon. Igneous, metamorphic, and sedimentary are descriptive terms used to classify types of rocks, not minerals such as diamond. Diamond is accepted as a valid mineral by the International Mineralogy Association. It is found in a type of igneous rock known as kimberlite. The diamond itself is essentially a chain of carbon atoms that have crystallized. The stone's unique hardness is a result of the densely concentrated nature of the carbon chains. A diamond is a crystalline mineral form of the element carbon.  Igneous, metamorphic, and sedimentary are descriptive terms used to  classify types of rocks, not minerals su … ch as diamond.     Diamond is accepted as a valid mineral by the International  Mineralogy Association. Diamond deposits are termed primary when diamonds are found in the host igneous or volcanic rocks. The host rock types in which significant quantities of diamond can occur include kimberlite and, more rarely, orangeite and lamproite, igneous rocks with similar characteristics to kimberlite. Kimberlite is a gas-rich, potassic ultramafic igneous rock that contains the minerals olivine, phlogopite, diopside, serpentine, calcite, and minor amounts of apatite, magnetite, chromite, garnet, diamond, and other upper mantle minerals. However, the diamond itself is a metamorphic  mineral, as it forms under heat and pressure from solid-state  processes. It forms independently of the igneous rock in which it  is found, qualifying it as a type of xenocryst. Diamonds are found in igneous rock which is brought to the surface of the earth by volcanic eruptions bringing magma to the surface. Diamond itself is strictly an allotrope of the element carbon, a mineral, one form of crystal that can be created from carbon. Gemstones associated with metamorphic rock include beryl, jade, lapis lazuli, turquoise, spinel, ruby, sapphire and zircon. Rocks and minerals are in a constant state of change, which is referred to as the rock cycle. Igneous rock can change into sedimentary or metamorphic rock.
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is a diamond an igneous rock