Dimensions of cavity indicate point to opposite point. Arbitrarily called a diamond here, this shape in geometry is called a rhombus, with each of its sides measuring 24mm. Overall size of chablon 11 inch x 13-3/8 inch. For making thin shapes of chocolate. (This chablon is 3mm thick.) To use, put a Silpat or acetate sheet on a level surface and place the chablon on top. Alternatively, put the Chablon on a chocolate transfer sheet to leave a design on your chocolate. Pour the chocolate into the chablon and scrape off excess chocolate. When the chocolate has dried, remove the chablon.