Approx ctw for Old Cuts

[CoffeeAndDiamonds]

Hi everyone,

Is there a commonly accepted mm measurements to carat weight for old european cuts? I found some online for modern rounds, but wasn't sure that would work for old cuts.

I recently bought a cute ring and want to check that the specs it was sold to me as are reasonable based on its measurements

Thanks!

 

[prinsad]

I have not found a mm to carats for old cuts myself. But your ring is gorgeous!

 

[CoffeeAndDiamonds]

I have not found a mm to carats for old cuts myself. But your ring is gorgeous!

Thank you!

I ended up just using a modern round mm to carat and assumed it was probably conservative .