2-in-1 diamond suspension. DiaDoublo is a carefully balanced blend of diamond suspension and lubricant, recommended for softer materials. DiaDoublo Poly offers very fast sample preparation and simple dosing that ensures reproducible results. Effortless sample cleaning. Diamond concentration of 10 carats per liter. 100% polycrystalline diamonds. Median (50%) of 2.84 µm. Tolerance of 2.7 to 2.98 µm. Upper limit (99%) of 4.1 µm.