bryan.boyne.gg - Posts





Search found 476 matches
Re: Thoughts On "Ideal" Cut

In my opinion, the upshot is that for a well-cut MRB the bezel effect is negligible (at least in the face-up position), whereas for fancy cuts (even well-cut ones) there can be a perceptible effect of bezel-mounting the stone, and that the effect can get worse with tilt. gray ETA: Also, in your pic...

by Texas Leaguer

September 1st, 2014, 2:49 am

Forum: RockyTalky

Topic: Thoughts On "Ideal" Cut

Replies: 43

Views: 694
Re: Thoughts On "Ideal" Cut

You would receive much less % for Fancy cut depth just if you use maximum diameter as reference ( 100%) instead minimum diameter . there is not a difference for round cut but huge difference for fancy cuts just due definition rule. if you want correct comparison between depths for round cut and fan...

by Texas Leaguer

August 31st, 2014, 1:01 pm

Forum: RockyTalky

Topic: Thoughts On "Ideal" Cut

Replies: 43

Views: 694
Re: Thoughts On "Ideal" Cut

Don't forget that face up size or spread only considers the on-axis, top-down view. That ignores an important diamond quality ... off-axis performance. To an amazing degree the fireworks of the Octavia continue as you tilt the diamond quite a bit off-axis. IMO anyone who thinks Octavia's 75%+ depth...

by Texas Leaguer

August 31st, 2014, 12:00 pm

Forum: RockyTalky

Topic: Thoughts On "Ideal" Cut

Replies: 43

Views: 694
Re: Thoughts On "Ideal" Cut

Interesting discussion Sturgeon. I think your comments about the long tradition of cutting for weight are core to the issue. In the absence of a standard for overall cut quality, maximizing carat weight will continue to be a primary strategy for most manufacturers. Reflector technology was the first...

by Texas Leaguer

August 31st, 2014, 10:51 am

Forum: RockyTalky

Topic: Thoughts On "Ideal" Cut

Replies: 43

Views: 694
Re: Diamond Grading Process at AGSL: New Series by Bryan Boy

This is a great article.. I am not a fan of princess, just preference, but my sister in law is a princessnut.. so I sent the pointer to her.. thank you so much for taking the time to do this. :clap: :clap: Thank you for the compliment Tekate, and thank you for passing the link on. I hope your siste...

by Texas Leaguer

August 29th, 2014, 4:38 pm

Forum: RockyTalky

Topic: Diamond Grading Process at AGSL: New Series by Bryan Boyne

Replies: 35

Views: 4084
Re: Diamond Grading Process at AGSL: New Series by Bryan Boy

This is a great article.. I am not a fan of princess, just preference, but my sister in law is a princessnut.. so I sent the pointer to her.. thank you so much for taking the time to do this. :clap: :clap: Thank you for the compliment Tekate, and thank you for passing the link on. I hope your siste...

by Texas Leaguer

August 29th, 2014, 8:18 am

Forum: RockyTalky

Topic: Diamond Grading Process at AGSL: New Series by Bryan Boyne

Replies: 35

Views: 4084
Re: Ideal scope, H&A, ASET pictures attached. Thoughts?

Looks good. According to the AGS report it is a Lazare Kaplan branded (inscribed) diamond. As it may have been in circulation for a while (2006 cert), you should get it checked by third party professional for verification and to make sure it is in original condition.

by Texas Leaguer

August 28th, 2014, 7:33 am

Forum: RockyTalky

Topic: Ideal scope, H&A, ASET pictures attached. Thoughts?

Replies: 5

Views: 224
Re: How do diamond vendors put a hold on diamond inventory?

Well, you aren't the first to ask these questions and I am sure much has been written here on the subject. But the short answer is that the global network of diamond manufacturers and dealers is large and variable. There are some very big companies in the mix, but many more small and micro businesse...

by Texas Leaguer

August 27th, 2014, 4:53 pm

Forum: RockyTalky

Topic: How do diamond vendors put a hold on diamond inventory?

Replies: 2

Views: 231
Re: Help finding my princess!

Been lurking for awhile, now I am posting. I have used a local jeweler for years who has been amazing with custom pieces (earrings, necklaces, bracelets, etc.), however, during the search for the "one" I have come to question her judgement on the stone. Particularly, I am looking for a pr...

by Texas Leaguer

August 27th, 2014, 10:33 am

Forum: RockyTalky

Topic: Help finding my princess!

Replies: 3

Views: 120
Re: Risky? Advice please on unseen GIA graded SI1, J, round

The most common colors in diamond are yellow and brown. (Brown is actually the most common). The GIA scale for the “normal range” is D-Z, broken out into colorless, near colorless, faint, very light and light as indicated on the scale. http://www.pricescope.com/files/images/gia_color_scale.jpg J col...

by Texas Leaguer

August 27th, 2014, 10:02 am

Forum: RockyTalky

Topic: Risky? Advice please on unseen GIA graded SI1, J, round

Replies: 9

Views: 229
Re: The rough for my Octavia (pics)...

There will always be some variance in symmetry points/junctions between a 3D scan vs. real polished Diamond comparisons. Scanners did advance "a bit" in the last 7 years since I started my attempts at 3D Diamond precision cutting but they are still far from giving us complete solutions. A...

by Texas Leaguer

August 26th, 2014, 3:29 pm

Forum: RockyTalky

Topic: The rough for my Octavia (pics)...

Replies: 248

Views: 6653
Re: Been Wondering When This Would Happen - Lawsuit Over Gra

This post may be a little off topic but....once upon a time there was a large national jewelry retail chain (no longer in business) who sold their diamonds based on their own "in house" grading system. Here is the grading system: AAAA= H-K color, VS 2-SI1 AAA=I-L color, SI 2- SI 3 AA+= I ...

by Texas Leaguer

August 22nd, 2014, 9:09 am

Forum: RockyTalky

Topic: Been Wondering When This Would Happen - Lawsuit Over Grading

Replies: 36

Views: 1503
Re: Been Wondering When This Would Happen - Lawsuit Over Gra

For those interested in additional discussion about EGLI you might want to see this thread: http://www.pricescope.com/forum/rockytalky/first-time-diamond-wholesale-purchase-t201496-30.html it contains some discussion about this article among other things: http://www.diamonds.net/News/NewsItem.aspx?A...

by Texas Leaguer

August 21st, 2014, 3:37 pm

Forum: RockyTalky

Topic: Been Wondering When This Would Happen - Lawsuit Over Grading

Replies: 36

Views: 1503
Re: Been Wondering When This Would Happen - Lawsuit Over Gra

This is tangential, but for those interested in the use of technology in color grading I found the earlier discussion: http://www.pricescope.com/forum/rockytalky/why-is-gia-so-slow-t202789-30.html by Texas Leaguer » 18 Jun 2014 17:01 Written by 30yearsofdiamonds » 09 Jun 2014 11:48: Info that came m...

by Texas Leaguer

August 21st, 2014, 3:14 pm

Forum: RockyTalky

Topic: Been Wondering When This Would Happen - Lawsuit Over Grading

Replies: 36

Views: 1503
Re: Been Wondering When This Would Happen - Lawsuit Over Gra

Alot of good analysis above. Add me to the list of those a little skeptical that the plaintiffs will prevail, though I very much hope they do. "Professional", programatic fraudsters are pretty adept at gaming the system. Being able to point to a third party (the EGLI) as the real culprit g...

by Texas Leaguer

August 21st, 2014, 2:59 pm

Forum: RockyTalky

Topic: Been Wondering When This Would Happen - Lawsuit Over Grading

Replies: 36

Views: 1503
Re: ASETs and fancy cuts

Well Stan, you really got Serg going with your beer analogy. I am expecting any minute for Garry to storm in and to call BS on the whole system for Fosters getting such a low rating. :lol: I think there is a fundamental difference between a consumer rating system and a scientific grading system. Ho...

by Texas Leaguer

August 20th, 2014, 3:05 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: ASETs and fancy cuts

Well Stan, you really got Serg going with your beer analogy. I am expecting any minute for Garry to storm in and to call BS on the whole system for Fosters getting such a low rating. :lol: I think there is a fundamental difference between a consumer rating system and a scientific grading system. How...

by Texas Leaguer

August 20th, 2014, 1:31 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: First time diamond wholesale purchase

I think the AGS premium comes from one and only one source. Consumer demand. The GIA preference comes from the trade. They’re safe and they’re easy to sell. I’m reminded of an old rule from the personal computer business a few decades ago. No one was ever fired for buying IBM. ‘Clones’ were plentif...

by Texas Leaguer

August 20th, 2014, 10:24 am

Forum: RockyTalky

Topic: First time diamond wholesale purchase

Replies: 61

Views: 1646
Re: First time diamond wholesale purchase

In the same way I don't think AGSL and the others are "taking a price hit" at 2.00 ct. Instead, the data shows that GIA commands a premium (per Bryan Boyne) in higher carats and collection-categories. I have an alternate explanation, AGSL provides reports with and without light performanc...

by Texas Leaguer

August 20th, 2014, 10:07 am

Forum: RockyTalky

Topic: First time diamond wholesale purchase

Replies: 61

Views: 1646
Re: First time diamond wholesale purchase

Here's a snapshot of what Bryan refers to. From a Rap Conference in 2012: This data is derived from actual wholesale trading values on our largest B2B network. In essence, suppliers charging $ 10,000 for a given diamond with GIA 123 (ct-cut-col-clar-etc.) were charging around $ 6,900 for the same 1...

by Texas Leaguer

August 20th, 2014, 7:18 am

Forum: RockyTalky

Topic: First time diamond wholesale purchase

Replies: 61

Views: 1646
Re: ASETs and fancy cuts

LOL!!! Although, to be completely objective I would have to accept a penalty of about 25 points for leakage of good sense (proportionate to the quantity). Ok, here are the proper metrics: 1 part fresh squeezed lime juice. Use key limes or the small Mexican limes (they are best when yellow) 1 part C...

by Texas Leaguer

August 19th, 2014, 3:50 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: ASETs and fancy cuts

I think we will have to agree to disagree Serge. Technology helped create new genres of art. It did not teach us how to quantify whether art was more beautiful or less and modern art is not superior to the art of the masters. Let's shift your wine analogy to my beverage of choice - beer. When I was...

by Texas Leaguer

August 19th, 2014, 3:30 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: Price and cut for a D, VS2 1.51 round

Thanks everyone for all the replies. I always hear that the difference between 1 or 2 color grades isn't noticeable to most people and that I wouldn't notice an SI-1 vs VS-2 if it's eye clean. Would this cut quality actually be noticeable either? The closest comparable diamonds I've found with thes...

by Texas Leaguer

August 19th, 2014, 3:01 pm

Forum: RockyTalky

Topic: Price and cut for a D, VS2 1.51 round

Replies: 9

Views: 277
Re: Price and cut for a D, VS2 1.51 round

I'm purchasing a D, VS2, 1.51 round diamond for $12,800. My only concern is that it was GIA certified in 2001 before they rated cut. measurements are 7.24x7.38x4.68, polish is rated Very Good, Symmetry is Good. Table is 58 and depth is 64.0 which seems a little deep. Girdle is extremely thin to med...

by Texas Leaguer

August 19th, 2014, 12:52 pm

Forum: RockyTalky

Topic: Price and cut for a D, VS2 1.51 round

Replies: 9

Views: 277
Re: ASETs and fancy cuts

I think we will have to agree to disagree Serge. Technology helped create new genres of art. It did not teach us how to quantify whether art was more beautiful or less and modern art is not superior to the art of the masters. Let's shift your wine analogy to my beverage of choice - beer. When I was...

by Texas Leaguer

August 19th, 2014, 10:49 am

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: ASETs and fancy cuts

Garry - what exactly do you mean by crowd sourcing? How will this process be undertaken and what aspects of the cut groups conclusions will be tested this way? Will the methodology and the results be published? Stan, not speaking for Garry- he's probably asleep down under- my understanding is that ...

by Texas Leaguer

August 19th, 2014, 7:22 am

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: GIA VS2 Eye Clean?

Good advice from the others on getting the diamond checked out by a third party professional. Normally a good practice, but particularly since the diamond may have been in circulation a while. Regarding clarity - most probably this stone will be completely eye-clean. As a VS2 with a cloud as the gra...

by Texas Leaguer

August 19th, 2014, 4:16 am

Forum: RockyTalky

Topic: GIA VS2 Eye Clean?

Replies: 3

Views: 176
Re: ASETs and fancy cuts

. I think there is an unfortunate aspect to the way the market has embraced AGSL grading- i.e. only the Zero is highly valued. Some of the debate here would probably not be as heated if you had a situation where people appreciated AGS 1 and 2 grades as being high end. But there seems to be a sense ...

by Texas Leaguer

August 18th, 2014, 8:21 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: ASETs and fancy cuts

Bryan perhaps I wasn't clear enough. The point of my post was that it doesn't matter what a word like brilliance means to me or you or to the AGSL or to the cut group. What matters is what it means generically to people generally and whether whatever it is that we are objectively measuring matches ...

by Texas Leaguer

August 18th, 2014, 8:13 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833
Re: ASETs and fancy cuts

In my view part of the problem here is that the words we use to describe characteristics of diamonds like "sparkle," "brightness" "fire" etc., are, first and foremost, English words with generic unscientific meanings to consumers. Would you please explain what your fat...

by Texas Leaguer

August 18th, 2014, 3:48 pm

Forum: RockyTalky

Topic: ASETs and fancy cuts

Replies: 279

Views: 3833