Diamond Blade suitable for our 450w Lapidary Machine Diamond blade suitable for our 450w Lapidary Machine £8.50 Out of stock. Lapidary Diamond Blade 180 x 22.23mm This is a tile cutting blade suitable for cutting gemstones upto a hardness of 5/6 with water/ lubicant - suitable for use with our own saw machine with our own lapidary / gemstone cutting machine. Manufactured by LTS & Silverline Products in the UK. price for one blade. note colours may change subject to availability. normally yellow / orange or grey colour. same spec.