the grace
diamond
The way a diamond is cut changes everything. It can reveal an inner fire – or compromise great potential. Make light dance up from a diamond’s depths or allow it to leak out the bottom or sides.
Our signature Grace Diamond is cut from the perfect sweet spot of a rough stone. In developing it, we took the mathematical “ideal” laid out by the revolutionary gemologist Tolkowsky one step further, aiming for the diamond’s true heart
A harrowing amount of carat weight is lost in the process; in fact, it takes approximately a two-carat rough to yield a one-carat Grace. That is a trade-off we’re willing to make in pursuit of great brilliance – and one no other company can claim: the Grace Diamond is exclusive to O.C. Tanner.