Comments on: Diamond Cut Quality

By: Mike

Mike — Wed, 08 Feb 2012 14:41:38 +0000

I have heard of them, but have no experience with them. I prefer to limit myself to vendors that have magnified pictures of their diamonds.

By: Kami

Kami — Tue, 07 Feb 2012 13:27:32 +0000

Hi there,

I found a website called brilliance dot com. (Brilliance) They have amazing prices and they say they are certified. Have you heard of them? I already have a ring. I just want to buy a loose diamond between .75 to 1.00. Thanks so much!

Kami

By: Mike

Mike — Tue, 07 Feb 2012 10:24:30 +0000

Hi Joe. The 60/60 rule isn’t a rule. I keep thinking I need to remove it from the site. Look at what I wrote “For those of you looking to buy a diamond without a certificate, here’s a very dumbed-down, but reliable rule of thumb. Just remember “60/60.” That means 60% table and 60% total depth.”

So it only applies to rounds, should only be used if you’re buying something uncertified. Otherwise, you should use the certificate’s cut grade which is a much more elegant formula for determining cut quality.

Cut is important regardless of setting. Light enters through the top is reflected around and returns through the top. Opened sides don’t really make a difference.

By: Mike

Mike — Tue, 07 Feb 2012 07:14:16 +0000

It’s clarity enhanced and certified by a no-name (probably fake) lab. Stay away!

By: Joe

Joe — Mon, 06 Feb 2012 04:30:31 +0000

Hi Ira:
I have a couple questions on the 60/60 rule. First, am I correct to assume that Depth is more important than Table dimensions? (I assume greater Table would let more light in, and if Depth is closer to 60% there is a greater chance of reflecting that same light back out) If I must sacrifice something should it be Depth or Table??

I think I’ve read here that the 60/60 rule only applies to round diamonds – are there any rules for other cuts? (I’m considering a Princess or Cushion cut)

And I think I’ve just came to the realization that the mounting is just as important as the diamond itself. As such, I’m considering one of the James Allen tension settings (maybe the twist, sprial, or split shank tension). With these types of open settings can I assume that the cut is less important vs color or clarity or size? (I’m assuming that less light would be lost b/c it could still be reflected out the sides of the stone – or am I wrong here?)

Again, thanks for your input!
-joe

By: Benjamin

Benjamin — Sun, 05 Feb 2012 06:08:35 +0000

Hi, does this Diamond look like a good deal to be used as an engagement ring? Or do I want better than g si2?

http://bit.ly/AwYndA

I live in Australia.

Thanks, Benjamin

By: Mike

Mike — Sat, 04 Feb 2012 20:52:28 +0000

I know the owners personally. They’re major dealers in Antwerp.

By: Drinko

Drinko — Sat, 04 Feb 2012 13:10:35 +0000

Looking @ mazal – they don’t seem to list where they are actually based – which looks a little shady – have you been known about them for a while?

The prices look good, but I’ll probably hold till I can find someone to speak to there….

By: Mike

Mike — Fri, 03 Feb 2012 00:47:42 +0000

Hey Drinko. This “sparkle factor” stuff is just clever marketing. I wouldn’t trust it at all. I also tend not to trust any site that sells EGL certified diamonds. See my article here about EGL.

There’s really no issue with ordering from the US. I help people from the UK all the time.

If you really don’t want to buy from the US, I have a great Antwerp based vendor I can recommend. Give MazalDiamond.com a call and tell them Mike from Truth About Diamonds sent you.

By: Mike

Mike — Thu, 02 Feb 2012 18:06:12 +0000

You won't get anything decent for that price in the size you want. See my diamond stud earring review for more info.