Diamond Sure is a manufacturing division of Luminare Supply Corporation. Luminare Supply has been in the diamond tool business since inception in 1989. Diamond tools were originally sold in the glass and stained glass industries. In 1997, DiamondSure expanded marketing efforts to also sell diamond tools for general crafting and lapidary (stone) work The use of Porcelain floor tile in general construction increased significantly during the mid-1990's. As a result of the increased tile dem