Old cuts, new cut: eye candy & a question

[glitterata]

A thread about OECs yesterday inspired me to shoot lots of pictures of my OEC, my transition cut, and my Cut by Infinity. I thought I''d post them. So this thread will be mostly eye candy, but I do have some questions about these cuts.

The OEC and the transition cuts are heirlooms, my grandmothers'' engagement diamonds, and I have no idea what their cut specs are. So I''m hoping some of you familiar with these cuts will chime in and speculate about things like how big their tables are, how deep they are, and so on.

In this first picture, the transition cut is on top, then the OEC, then the Cut by Infinity.

 

[glitterata]

This shot shows glare on the tables of the OEC and the transition cut, to make it easier for you to help me guess about how big they might be. Thoughts, anyone?

 

[diagem]

What you call trans. cut (looks to me around the 60%+/-)
OEC 50% +/-


Just a guesstimate..., would be interesting to see...

 

[glitterata]

This shot shows the OEC, the transition cut, and the Cut by Infinity, in that order. I like it because you can see the patterns of their facets pretty well, including the Infinity's arrows.

Specs:

The OEC is my Grandma Rosie's engagement diamond from 1921, set in a new, repro setting. (She gave me the diamond set in a necklace as a graduation present years ago; before that my grandpa wore it in a pinky ring for many years. I had it reset in a repro setting so I could wear it as a ring. It's 1.65 ct, K/L (but probably L), SI2 (with interesting rusty-red inclusions, which are hidden under a prong). Faint fluorescence. It's a size 7, a bit big on my ring finger.

The transition cut is my Grandma Dorothy's engagement ring from 1929. An appraiser told me it's a transition cut, 1.4 or so ct, F/G (but probably F), VS2 (but might have been higher when Grandpa bought it; it has a few tiny chips now, the largest of which may be a natural). The deco-style setting is original. It's a size 8, way too big for my ring finger, but I haven't resized it because I like to wear it with her (unsizable) wedding ring. I wear them on my middle or index fingers, depending on the weather. No fluorescence.

The Infinity is a recent purchase, from Wink. It's .73 ct J I1, with strong blue fluorescence, but not quite strong enough for my tastes. I wish the fluorescence were stronger. It's set in an antique platinum deco setting from the 20s that I bought on ebay. It's way too big; I have to get it resized.

 

[glitterata]

Thanks, Diagem! Do you think my transition cut isn''t really a transition cut? That was what the appraiser called it several years ago.

OEC and transition:

 

[glitterata]

Another of all three:

 

[strmrdr]

can I get a picture strait on to the diamond?
Crop out everything but the stone and post the picture as large as possible.
Repeat for the other stone.

 

[glitterata]

Side views:

 

[glitterata]

The OEC.

 

[diagem]

Date: 9/2/2008 5:31:52 PM
Author: glitterata
Thanks, Diagem! Do you think my transition cut isn''t really a transition cut? That was what the appraiser called it several years ago.

OEC and transition:

Depends..., I notice a lot are differentiating between trans. and OEC by the condition of the culet...., (open or pointed)...

 

[glitterata]

The transition cut:

 

[glitterata]

OEC and TC together:

 

[diagem]

And I notice the OEC as steeper facet angles than the trans....

 

[glitterata]

Another:

 

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The Infinity, showing arrows:

 

[glitterata]

Okay, Storm, I''ll go do some cropping now.

 

[glitterata]

Cropped OEC, first shot:

 

[glitterata]

Cropped OEC, second shot:

 

[diagem]

Date: 9/2/2008 5:46:12 PM
Author: glitterata
The Infinity, showing arrows:

What are lgf lengths on the Infinity?? (it looks like about 75%)...

 

[glitterata]

Transition cut, cropped for Storm:

 

[strmrdr]

Date: 9/2/2008 5:39:56 PM
Author: glitterata
The transition cut:

Table 61% lgf% around 65%

 

[glitterata]

Date: 9/2/2008 5:51:55 PM
Author: DiaGem

Date: 9/2/2008 5:46:12 PM

Author: glitterata

The Infinity, showing arrows:

What are lgf lengths on the Infinity?? (it looks like about 75%)...

They''re 74%, if I''m reading the AGS report correctly.

 

[strmrdr]

Date: 9/2/2008 5:51:55 PM
Author: DiaGem

Date: 9/2/2008 5:46:12 PM

Author: glitterata

The Infinity, showing arrows:

What are lgf lengths on the Infinity?? (it looks like about 75%)...

around 78 is where he usually cuts them

 

[strmrdr]

Date: 9/2/2008 5:57:37 PM
Author: glitterata

Date: 9/2/2008 5:51:55 PM

Author: DiaGem

Date: 9/2/2008 5:46:12 PM


Author: glitterata


The Infinity, showing arrows:

What are lgf lengths on the Infinity?? (it looks like about 75%)...

They''re 74%, if I''m reading the AGS report correctly.

that would be rather strange for an infinity.

 

[glitterata]

Date: 9/2/2008 5:56:47 PM
Author: strmrdr

Date: 9/2/2008 5:39:56 PM

Author: glitterata

The transition cut:

Table 61% lgf% around 65%

Thank you, Storm!

In person, the transition cut is much whiter than the OEC (stands to reason, F versus L), but it''s also less sparkly. It seems to have much less oomph than the OEC. When I tilt it, I can see through it for a while, as if I''m looking through a glass of water to a sparkly bottom. The OEC doesn''t have that watery, see-through quality. I find myself wearing the OEC much more.

So you would think I would like the Infinity best of all, but I don''t. I prefer the larger flashes of the OEC. The Infinity''s colors seem to blend together or something; the OEC and (to a lesser extent) the transition seem to have not just larger patches of color, but more color absolutely. But the OEC sometimes has some darkness in the center, and the transition cut seems to have some dead areas, which the Infinity doesn''t have at all.

 

[glitterata]

Date: 9/2/2008 5:38:54 PM
Author: DiaGem

Date: 9/2/2008 5:31:52 PM

Author: glitterata

Thanks, Diagem! Do you think my transition cut isn''t really a transition cut? That was what the appraiser called it several years ago.


OEC and transition:

Depends..., I notice a lot are differentiating between trans. and OEC by the condition of the culet...., (open or pointed)...

I see. My OEC has a much larger culet than my transition cut, but the transition cut does have an open, though smallish, culet.

 

[glitterata]

Date: 9/2/2008 6:00:59 PM
Author: strmrdr

Date: 9/2/2008 5:57:37 PM

Author: glitterata

Date: 9/2/2008 5:51:55 PM


Author: DiaGem

Date: 9/2/2008 5:46:12 PM



Author: glitterata



The Infinity, showing arrows:

What are lgf lengths on the Infinity?? (it looks like about 75%)...

They''re 74%, if I''m reading the AGS report correctly.

that would be rather strange for an infinity.

I must be misreading the report, then.

 

[strmrdr]

Date: 9/2/2008 5:51:35 PM
Author: glitterata
Cropped OEC, second shot:

table 53 ish lgf% 63 ish...

 

[glitterata]

Hand shot:

 

[strmrdr]

Date: 9/2/2008 6:08:23 PM
Author: glitterata


I must be misreading the report, then.

You still have the link to the infinity page for the diamond?