Embarrassing Question

[minousbijoux]

What does "diamond cut" mean when speaking of colored stones? Is it the kind of cut it has, or does it refer to material used to cut/polish it? I really need a primer on the names of the different cuts, as I never know the names of the round stone cuts. Anybody want to lend a hand?

 

[iLander]

I think they're just saying it's cut in a round shape like a diamond.

Unless there are faceting laps made with diamond grit . . . Where are the pro guys when you need them?

You're right, it's not very specific is it?

 

[T L]

What does "diamond cut" mean when speaking of colored stones? Is it the kind of cut it has, or does it refer to material used to cut/polish it? I really need a primer on the names of the different cuts, as I never know the names of the round stone cuts. Anybody want to lend a hand?

That's not an embarrassing question. I think it means that the stone is cut in a standard RBC like a diamond. At least that's how they all look when I see vendors refer to "diamond cut."

 

[PrecisionGem]

"Diamond Cut" when used for colored stones means the traditional standard round brilliant design (SRB). The angles are modified for the material but the cut is basically the same. Here's a diagram of what it looks like. Some cutters will put a larger spread on the angles of the pavilion to produce a "chunky" look to the facets.

 

[minousbijoux]

Thank you. That is very helpful information. Gene, when you say more spread on the pavilion angles, what exactly do you mean? I can imagine the concept of chunky facets, but its a term that is thrown around all the time over in RT and other diamond loving places, and typically is referring to older cuts. Would you help me out again here, since I know nothing about diamonds (if that wasn't already obvious)?

TIA

 

[RedSpinel]

What does "diamond cut" mean when speaking of colored stones? Is it the kind of cut it has, or does it refer to material used to cut/polish it? I really need a primer on the names of the different cuts, as I never know the names of the round stone cuts. Anybody want to lend a hand?

That's not an embarrassing question. I think it means that the stone is cut in a standard RBC like a diamond. At least that's how they all look when I see vendors refer to "diamond cut."

That^

 

[chrono]

Bigger pavilion facets, perhaps, like the old style OMC and OEC?

 

[gsellis]

Personally, I think Diamond Cut is a bad name. Do you mean Marquis, Princess, Emerald, Standard Round Brilliant, Jubilee, etc.? I assume they mean SRB. But you never know with some people. That is like calling any Rattlesnake "poisonous." Excuse me, but they taste like rabbit or alligator. But live, watch out! They are venomous.

 

[PrecisionGem]

In the picture of the pavilion above, you see two tiers of facets. One labeled P1 and the other P2. To get a "chunky" facet you would cut these facets at an angles with a greater difference than is normal.

For example: If you were cutting this design in Tourmaline, and wanted it to look like the image above, you may use P1 at 42.25 degrees and P2 at 40.75 degrees. This would make the proportion what you see in the picture. To create a more chunky look, I would change P1 to 43.2 and cut P2 at 40.4 degrees. This would make P2 look fatter and give the chunky look.

 

[minousbijoux]

Once again, thanks. It is amazing what a small variation in angle degree can do to the look of the stone. I'm really trying to picture the difference, but its hard!