Patent ID: 8689912

Claim:
A diamond bonded construction comprising a diamond body comprising a matrix phase of intercrystalline bonded-together diamond crystals and a plurality of interstitial regions dispersed among the bonded-together diamond crystals, the diamond body having a working surface at one location and an interface surface positioned at another location, the body having a diamond volume content with a gradient of greater than about 1.5 percent, the diamond body comprising a catalyst material and a material selected from the group consisting of carbides, nitrides, borides, oxides and combinations thereof disposed within the interstitial regions, and wherein the diamond body has a diamond volume content at the working surface of 98 percent or less according to one of the following criteria: the diamond volume fraction is greater than (0.9077)·(the average diamond grain size [^0.0221] 0.0221 ); or the diamond volume fraction is greater than (0.9187)·(the average diamond grain size [^0.0183] 0.0183 ); or the diamond volume fraction is greater than (0.9291)·(the average diamond grain size [^0.0148] 0.0148 ), wherein the average diamond grain size is provided micrometers.