Bigger is Not Better Every Time
Its inverse relation to expense notwithstanding, diamond size is grossly overrated a lot of the time. Pick a halo-style if you want a stone that looks big, or add a few extra design details to make the ring more appealing.
Prioritize Clarity and Quality
The “Right” Shape
Cut and shape are not the same, which means checking the 4 C’s along will not be enough. The shape you choose will affect the look of the diamond greatly. It will also have a bearing on how snugly and securely the stone rests in its setting, so choose carefully.