Tekate|1452476652|3973933 said:they say platinum is stronger, so if your stone is set higher I'd get platinum... I've had both and like the platinum better.
diamondseeker2006|1452486122|3973996 said:I would want the jeweler to order that ring new in your ring size and with the right head for your stone (correct size for the diamond and platinum) rather than altering a sample setting they have in the store. Prong tips of white gold wear away over time. Platinum doesn't.
Ask for a medium height head. If it's too high, you are at greater risk of hitting your diamond against something and damaging it.