Anyone know about MSID diamonds?

[Ty Cobb]

http://www.robbinsbros.com/msid/default.asp

That is the link to the diamonds. Any one in the industry know anything about what they are claiming?

 

[JulieN]

there are other diamonds that max out Gemex.

hated the amateur presentation.

 

[ediemk]

I actually bought an MSID diamond from Robbins Brothers about 2 weeks ago. I am contemplating taking it back after researching prices on this site and weighing the benefits of the "lifetime promise." I''m not sure that it is worth the premium you pay for it. The diamond, however, is gorgeous. I absolutely love it and am hesitant to part with it. I compared it to other stones side by side, and it does appear larger. I''ll post a pic sometime later.

 

[denverappraiser]

As far as I remember, I’ve never seen one but I did take a few minutes to look over their patent (6,990.833). I’m really surprised that they granted this. What they do that’s different from everyone else seems to be limited to a 23-30 degree crown and the related changes in the upper girdle and star facets. Am I missing something? Ok, it’s got a slightly flat crown. That’s unique enough to grant a patent? People have been cutting flat spready stones for decades. What’s different here?

Here's another one that got a patent with the revolutionary idea of being spready on BOTH the crown and pavilion.

Neil Beaty
GG(GIA) ICGA(AGS) NAJA
Professional Appraisals in Denver

 

[diagem]

Date: 4/25/2008 3:06:50 PM
Author:Ty Cobb
http://www.robbinsbros.com/msid/default.asp

That is the link to the diamonds. Any one in the industry know anything about what they are claiming?

Old news???

Prior art at its highest element???

 

[Garry H (Cut Nut)]

This is hilarious.

Anyone who has been involved with the US patent office knows by know it is a little like a headless chicken.

Here is the actual patent
http://www.google.com/patents?id=KCB3AAAAEBAJ&dq=faceted+circular+cut+diamond


It describes a BIC diamond that HCA predicted some 2 years before.

The stone is a traditional round brilliant with a shallow crown (25 to 27 degrees) and has a slightly deep pavilion (40.7-42 degrees) - this makes a spreadier cut with greater light return at the expense of fire.

The extra weight saving comes from a thin girdle (1-3%) which is a chipping / durability disaster in a shallow crown angled diamond for a ring - but great for earrings and pendants.

HCA stops at 28 degrees and raises warnings on thinner girdled diamonds as the crown angle gets lower. These stones would be dinged by HCA and any reasonable appraiser for usage in rings.

 

[Garry H (Cut Nut)]

Date: 5/2/2008 8:37:39 PM
Author: denverappraiser
As far as I remember, I’ve never seen one but I did take a few minutes to look over their patent (6,990.833). I’m really surprised that they granted this. What they do that’s different from everyone else seems to be limited to a 23-30 degree crown and the related changes in the upper girdle and star facets. Am I missing something? Ok, it’s got a slightly flat crown. That’s unique enough to grant a patent? People have been cutting flat spready stones for decades. What’s different here?

Here''s another one that got a patent with the revolutionary idea of being spready on BOTH the crown and pavilion.
i have seen some of what these people are doing Neil and it is very interesting. A lot of their focus is on very small pave stones
Neil Beaty
GG(GIA) ICGA(AGS) NAJA
Professional Appraisals in Denver

 

[Stephan]

Date: 5/4/2008 1:24:10 AM
Author: Garry H (Cut Nut)
HCA stops at 28 degrees and raises warnings on thinner girdled diamonds as the crown angle gets lower. These stones would be dinged by HCA and any reasonable appraiser for usage in rings.

Even if the girdle is thick enough?

 

[Garry H (Cut Nut)]

Date: 5/6/2008 6:09:58 AM
Author: QueenMum

Date: 5/4/2008 1:24:10 AM
Author: Garry H (Cut Nut)
HCA stops at 28 degrees and raises warnings on thinner girdled diamonds as the crown angle gets lower. These stones would be dinged by HCA and any reasonable appraiser for usage in rings.

Even if the girdle is thick enough?

Check out the ultra thin girdle on their comparsions on the website QM

 

[oldminer]

There is nothing new here, but the patent office seems to have rubber stamped something which was already known and potentially available for years. The cut is "different" from a standard configuration, but just what GH has been telling us all about for quite a few years already.

The MSID name is really a funny: "Mr. Smith''s Incredible Diamond". Smith is a name commonly used as a ficticious name. It very much fits the part it plays in what is being offered. Buy it "if you love it" still applies. Pay a fair price and no one will have much to criticize. Apparently the MSID stone has a very nice appearance.

 

[denverappraiser]

The girdle measurement is described as a minimum, not a range or maximum, so the razor thin girdle isn’t required, it seems to be an option (and I agree it’s an undesirable one). In the patent they curiously measure girdle thickness as a ratio of the diameter, not of depth. Odd, but maybe that’s part of their ‘invention’ that allowed them to convince the patent examiner to grant the thing in the first place.

Neil Beaty
GG(GIA) ICGA(AGS) NAJA
Professional Appraisals in Denver

 

[ediemk]

I took the diamond back!! Went to Whiteflash and compared to ACA Hearts and Arrows. The MSID didn''t stand a chance! It was amazing the difference in the brilliance. I think it''s kind of funny now that I thought it was so pretty before. It looked absolutely dark and lifeless next to Brian Gavin''s H&A diamonds. Word to the wise...don''t ever buy one of these unless you never plan on seeing another diamond in your life.

--A soon-to-be very satisfied ACA Hearts and Arrows owner