Stone size: 4.0mm
Stone shape: Round
Stone type: Natural
Mohs hardness: 7
Refractive index: 1.544–1.553
Specific gravity: 2.65
Treatment: Heat-treated (H)
Cutting center: India
A favorite of yesteryear, this rose-cut faceting features a flat base (no pavilion) and a crown made up of triangular facets.
Amethyst is the best-known and most valuable form of quartz. The light to dark purple color of natural amethyst is caused by iron or manganese compound impurities in the mineral.
Amethyst is the birthstone for February.
• Care: Clean with warm, soapy water; never clean using steam or ultrasonics.