Diamond (gemstone) Diamond (gemstone) A diamond (from the "adámas", meaning "unbreakable", "proper", or "unalterable") is one of the best-known and most sought-after gemstones. Diamonds have been used as decorative items since ancient times; some of the earliest references can be traced to 25,000 - 30,000 B.C. The hardness of diamond and its high dispersion of light—giving the diamond its characteristic "fire"—make it useful for industrial applications and desirable as jewelry. Diamonds are such a highly traded commodity that multiple organizations have been created for grading and certifying them based on the "four Cs", which are color, cut, clarity, and carat. Other characteristics,
Latin Grammy Award for Best Rock Song Latin Grammy Award for Best Rock Song The Latin Grammy Award for Best Rock Song is an honor presented annually at the Latin Grammy Awards, a ceremony that recognizes excellence and creates a wider awareness of cultural diversity and contributions of Latin recording artists in the United States and internationally. The award is reserved to the songwriters of a new song containing at least 51% of the lyrics in Spanish. Instrumental recordings or cover songs are not eligible. Songs in Portuguese may be entered in the Brazilian field. The award has been given every year since the 1st Latin Grammy