[masraum]

Originally Posted by look 171

Don't look at the ct. weight alone but the physical size. A stone might be bigger in diameter but not as thick so they weight the same.

Wouldn't that be the "cut" part of the 3 Cs (or 4 if you include carat weight), at least when talking about a round brilliant cut?

It's my understanding that for a round brilliant cut diamond, the ratio of table size, girdle diameter, depth, various angles, etc... all have an ideal. So if the cut is good, and I think most modern stuff is, then the diameter and depth should be pretty consistent from one diamond to the next.

For me, I would look for cut and clarity with color last on the list. The color of a diamond can be really, really hard to discern, especially depending upon the setting style and the color of the metal used for the setting, at least to me. Some are obvious, some not so much.



But I believe you. I'm not a jeweler and neither was my dad. I've just done some reading and looking around.

This subject has sort of come up before. You may want to take a look at the other threads for more reading material.

http://forums.pelicanparts.com/off-topic-discussions/625606-engagement-rock-shopping.html

http://forums.pelicanparts.com/off-topic-discussions/318835-market-buy-solitaire-diamnond-advice.html