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| | |-+  What's the difference between a Radiant and a Princess cut?		 « previous next »
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Author Topic: What's the difference between a Radiant and a Princess cut?  (Read 2534 times)
Diamondsbylauren
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« on: July 17, 2008, 07:22:58 PM »
What's the difference between a Radiant and a Princess cut?
Generally speaking, a princess cut is a diamond with 90 degree corners, like this:


Although princess implies a square to some, a princess cut may be square or rectangular.

A Radiant Cut has clipped corners, like this:


Like Princess Cuts, Radiant Cuts may be either square, or rectangular.

GIA does not use either term (Radiant, or Princess)

GIA's nomenclature for the Princess Cut above would be
"Square Modified Brilliant"

GIA called the Radiant Cut "Cut Cornered Square Modified Brilliant"

What do you think GIA called this one?
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David
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robin
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« Reply #1 on: July 17, 2008, 07:26:47 PM »
Well, to me, it's a radiant with corners.  It doesn't have the typical cross or X often seen in a princess; instead, it has an "eight-pack."

I think GIA would call this "rectangular modified brilliant."

I call it "a really lovely stone that I'd set in a ring with white radiant sides."  Smiley
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Mikla
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« Reply #2 on: July 17, 2008, 07:36:16 PM »
I second Robin's opinion!  Give us one each and we'll study them intently and let you know what we find out.

 Grin Mikla
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djm195
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« Reply #3 on: July 17, 2008, 09:26:49 PM »
Quote from: Diamondsbylauren on July 17, 2008, 07:22:58 PM
What do you think GIA called this one?




A six pack?
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oldmancoyote
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« Reply #4 on: July 18, 2008, 11:45:37 AM »
"Rectangular modified brilliant"

Or possibly "Rectangular mixed cut" (the top looks suspiciously like an emerald cut)

I also wonder if you turned it with the table facing down, whether it could be called a "Rectangular rose cut"...
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Trinkette
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« Reply #5 on: July 18, 2008, 12:58:04 PM »
But, this stone is so weird... aren't the sides on this one a bit curved, like a cushion?
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Trinkette
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« Reply #6 on: July 18, 2008, 01:17:44 PM »
And, if you went straight, corner to corner, 90 degrees, like a princess?  But, it is not quite square...
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Trinkette
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« Reply #7 on: July 18, 2008, 01:19:28 PM »
Almost like a Flanders Cut, but, with rounded sides and without cut corners...   1087
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Trinkette
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« Reply #8 on: July 18, 2008, 01:24:07 PM »
Rectangular modified brilliant cushion?  BangHead
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Trinkette
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« Reply #9 on: July 18, 2008, 01:29:21 PM »
Ehhhhhhh, they'd probably just say cushion modified brilliant.  But, IS it a cushion shape? I can't tell for sure. Can the edges be curved on a rectangular stone and still have it be just  "rectangle?" Or, does curve automatically equal "cushion?"  1087 BangHead 1087
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annie1
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« Reply #10 on: July 18, 2008, 06:05:54 PM »
Quote from: Trinkette on July 18, 2008, 01:29:21 PM
Ehhhhhhh, they'd probably just say cushion modified brilliant.  But, IS it a cushion shape? I can't tell for sure. Can the edges be curved on a rectangular stone and still have it be just  "rectangle?" Or, does curve automatically equal "cushion?"  1087 BangHead 1087

Good question Trink, because the corners do look a little curvy.
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« Reply #11 on: July 19, 2008, 08:00:16 PM »
Modified radiant or mixed something or other.
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Diamondsbylauren
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« Reply #12 on: July 20, 2008, 03:09:55 PM »
Hi All!!
It's important to remember that GIA uses clinical terminology.
That means they never use names like "Princess" or Radiant"

GIA Called this one "Modified Rectangular Brilliant"

If we were going to shoe-horn this diamond into a shape name, it would be Rectangualr Princess.

Here's the GIA report



Great question Trinkette!

I don't know the answer- but it makes sense that curved edges should make a stone a "Cushion"

We'll have to ask our GIA experts this week!
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Trinkette
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« Reply #13 on: July 24, 2008, 12:18:27 PM »
I guess I need to go back to the books here... Humph!  Wink So, a "rectangle" doesn't necessarily need to be a rectangle afterall?  David, are the sides actually as curved as they seem to be, or, is it just the photos that make them seem so? Gee, for that matter, when does a rectangle become a cushion?  Or a cushion an oval...  1087
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Diamondsbylauren
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« Reply #14 on: July 24, 2008, 03:17:18 PM »
The sides definitely have a "bow" to them.

Quote from: Trinkette on July 24, 2008, 12:18:27 PM
when does a rectangle become a cushion?  Or a cushion an oval...  1087

Great question- it's another case of diamond grading being "subjective"
The "oval- cushion" question is also a good one.
Basically, it's up to the graders- there is NO hard fast rule....

Makes life in the diamond world even more interesting, yes?
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Trinkette
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« Reply #15 on: July 24, 2008, 03:30:28 PM »
"Interesting" for sure. I'm sure I can come up with some more "colorful" descriptive words...   Roll Eyes BangHead Roll Eyes
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Trinkette
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« Reply #16 on: July 24, 2008, 03:33:01 PM »
Hey, I know!  For FUN, let's send the stone back and pretend it has no GIA report. Do you think it would still be a rectangle? Maybe it would come back a cushion next time...   Evil (I'm sick, I know it).
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