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The 4 C's + 1 Important T
by pokemonsick | Oct 09 '01
Learn about the 4 C's before you buy, and make sure your gut trusts your merchant. In summation- educate yourself!

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Comments on The 4 C's + 1 Important T" (3 total)  
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Date Written
Thank you! (Reply to this comment)
by pokemonsick
That's one aspect my jeweler did not detail for me in full, but I did neglect to mention the angles and the precision of the cut increasing value of the stone.
Nov 17 '01
6:08 am PST

Cut (Reply to this comment)
by Certified
I'd like to add a little to the cut description of the 4 C's.

Cut seems to be overlooked quit a bit. It does describe the shape of the stone but more importantly it describes the angles, proportions and symmetry of a stone. Round brilliant diamonds have had the most amount of research done on them to find the "ideal cut" proportions. Though some jewelry industry organizations do recognize a set of diamond cut proportions as ideal, it is also important to understand the ideal cut or not the quality of cut can dramatically affect the value and appeal of a diamond.

It is possible to have two diamonds of the same carat weight, with the same color and clarity grades have a difference in price of up to 40%. This difference is based on how well the cutter chose the angles and how neatly the facets line up with each other etc.

You can have a deep pavilion (bottom half of diamond) shallow crown (top half) with a spread table (top of stone, largest facet bigger than it needs to be) diamond priced similarly to one that has better proportions. This is assuming they weight the same, and have the same color and clarity grades. Should they be priced the same???

The shallow/deep stone with a spread table will have less life to it. The practice of spreading a table and keeping the pavilion deep keeps the stone heavier, so a deep diamond may have a smaller face up size, yet diamonds are priced using weight. Essentially you are keeping extra carat weight on a diamond without adding beauty. As a matter of fact, a poorly cut diamond usually has less beauty in the form of light not reflecting back well.

Should a poorly cut diamond be valued the same as a well cut diamond...NO.

A competent jeweler/gemologist should be able to explain and show you these differences. Here is where the trust comes in.

I hope this helps.
Nov 14 '01
10:05 am PST

* (Reply to this comment)
by annemorganmu
Nice job!
Oct 09 '01
7:52 am PDT