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Comparison- characteristics of CER and AVR

Double E

Brilliant_Rock
Joined
Jun 23, 2018
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959
Hi dear PSers~ not asking for which line is better or worse, just for cut/proportions range, displayed facets structures, optical performance, and your own preferences, is there any differences of characteristics that we consistently find between these two series?
 
Hi dear PSers~ not asking for which line is better or worse, just for cut/proportions range, displayed facets structures, optical performance, and your own preferences, is there any differences of characteristics that we consistently find between these two series?

The major difference is that AVRs have steeper pavilion than CERs do.
 
Thx, This is also one of the differences that I found.

I’ve also noted that AVR is generally having thicker girdle, of course I having explore every single inventory. How will this translate into differences of optics, if any?
 
Thx, This is also one of the differences that I found.

I’ve also noted that AVR is generally having thicker girdle, of course I having explore every single inventory. How will this translate into differences of optics, if any?

The difference in girdle thickness should not affect light performance and appearance in any significant way.
Again, the difference in PA is the major one. AVRs tend to have more bubbly appearance than CERs. But this is over simplication. There are CERs that look bubbly and AVRs that look floral depending on TB and LGH.
 
The difference in girdle thickness should not affect light performance and appearance in any significant way.
Again, the difference in PA is the major one. AVRs tend to have more bubbly appearance than CERs. But this is over simplication. There are CERs that look bubbly and AVRs that look floral depending on TB and LGH.

Is below a good demonstration of bubbly and floral? Of course both pics do not represent the entire lines of both vendors.

3A98835E-DA13-4B36-B4BC-DED717374017.jpeg
The pavilion main facets are not anywhere reaching or near the centre point of the table. Each of these facets are more of a round shape.

42E37C6C-FC80-4793-B2F2-FC5E9678F430.jpeg
The pavilion main facets nearly meet each other at the centre of table.
 
Is below a good demonstration of bubbly and floral? Of course both pics do not represent the entire lines of both vendors.

3A98835E-DA13-4B36-B4BC-DED717374017.jpeg
The pavilion main facets are not anywhere reaching or near the centre point of the table. Each of these facets are more of a round shape.

42E37C6C-FC80-4793-B2F2-FC5E9678F430.jpeg
The pavilion main facets nearly meet each other at the centre of table.

#1 is very typical of AVR, where #2 represents CER. The difference in appearance you described is, again, mainly from the difference in PA.
 
@Double E

One of the design considerations that I had in designing the CER was to have a spread that’s very similar to a MRB. During our market research phase, we realized that clients love the OEC faceting but don’t want to sacrifice diameter as compared to a modern round brilliant. So the goal of maximizing spread within the context of an Ideal OEC diamond is something that’s implemented into every CER. You’ll notice that the diameters in most CERs are within about 1%-3% of a comparable Ideal MRB.

Good luck,
 
@Double E

One of the design considerations that I had in designing the CER was to have a spread that’s very similar to a MRB. During our market research phase, we realized that clients love the OEC faceting but don’t want to sacrifice diameter as compared to a modern round brilliant. So the goal of maximizing spread within the context of an Ideal OEC diamond is something that’s implemented into every CER. You’ll notice that the diameters in most CERs are within about 1%-3% of a comparable Ideal MRB.

Good luck,

Thanks Victor~It makes much sense that many consumers welcome such balance between old world charm and stone size, not to mention the improved light performance. Your work is definitely appreciated by many!

May I ask a question though I am not sure if this violate the forum rules (do let me know if it does)? As someone who's able to offer both ideal OEC and MRB, How would you describe the difference or ambience these shiny rocks deliver?
 
really informative thread, thanks!
 
Actually the pavilion mains on both diamonds come down to meet the culet. What primarily accounts for any differences you see in the images are crown/pavilion/depth/table which can also be seen via ASET. There are other critical patented differences I'm not privy to discuss in this thread that also impact the optics. On a side note there are tweaks I've since made to the AVR.
 
I am going to say this because I would say it in a thread comparing two modern ideal cut rounds. You cannot compare two stones and generalize about every other stone from that vendor. I can look at a page of AVRs and a page of CERs and see some on each page that I love more than others! Please don't generalize about girdles or anything else. Sometimes that may be due to a difference in the cutter within the same vendor's stones. The stone in my avatar picture happens to be an AVR, but I think it looks very little like the AVR you pictured above. I will also tell you I ordered several stones to look at before I chose the one I have (at the time, only AVRs were available).

So my advice is to consider each stone available within your budget for it's individual characteristics. I think AVRs and CERs are beautiful stones and both vendors are wonderful and very passionate about their lines. I absolutely love the antique styles cut for greater light performance and visual symmetry, and they actually are quite rare in the overall scheme of things! Of course, I admire well cut true antique diamonds, as well. Use your eyes and see which individual stones from both vendors are most pleasing to you. Don't overanalyze the numbers, but I do look at diameter.

Good luck in your search!
 
Actually the pavilion mains on both diamonds come down to meet the culet. What primarily accounts for any differences you see in the images are crown/pavilion/depth/table which can also be seen via ASET. There are other critical patented differences I'm not privy to discuss in this thread that also impact the optics. On a side note there are tweaks I've since made to the AVR.

Thx for replying to my thread Jon~Definitely I am aware that I have over simplified what make each beautiful rock looks like^^ Sometimes just enjoy learning more about the tricks behind a nice stone as much as appreciating the beauty of a polished gem~

Your videos are truly helpful and amazing!
 
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