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Jubilee Info

P: 6/18/2004 10:12:36 AM
ep6585 Ideal Rock Total Posts: 609 Last Post: 12/28/2008 Member Since: 5/10/2004	For those interested in the new Jubilee cut diamond... I looked at a list of new Jubilee cut diamonds that GOG is getting this week and I've noticed there's quite a bit a variation on the depth% and table% numbers. I saw depth% ranging from 57.6 to 73.3 and table% ranging from 54 to 67. I wonder if there's an ideal number for either the depth% or the table%? Knowing Jonathan, he'll figure out what the best combination is.
Posted: 6/18/2004 10:12:36 AM

There are 11 replies to this message. There are 11 replies on this page.

P: 6/18/2004 10:16:01 AM
verticalhorizon Ideal Rock Total Posts: 840 Last Post: 3/24/2006 Member Since: 3/9/2004	Were the examples all the same carat weight? There was a slight variation in the first batch, but it was pretty tight. Between 65% and 68% depth I believe between the ones around 1ct. I dare say no one has ideal numbers for the Jubilee yet. I would guage the spread, at least, by that of a Princess. As for the rest of the bumbers, you'll have to judge by the BS, LS, micrograph photos, and Jon's word. For now. VH (aka GroomZilla) --- This post was brought to you by the Church of Cut Quality. Note: I am not an expert. Just a friendly neighbor.
Posted: 6/18/2004 10:16:01 AM

P: 6/18/2004 10:22:58 AM
ep6585 Ideal Rock Total Posts: 609 Last Post: 12/28/2008 Member Since: 5/10/2004	The carat weights ranged from 0.40 to 2.71. As an example I saw a 0.90, 0.82, and a 0.57 that all had the same spread.
Posted: 6/18/2004 10:22:58 AM

P: 6/18/2004 10:34:22 AM
verticalhorizon Ideal Rock Total Posts: 840 Last Post: 3/24/2006 Member Since: 3/9/2004	0.57 or 0.75?? I'd believe all three with similar spreads if that last one is 0.75ct. I've seen it before. However, understanding the ideal proportions of something so new is tough. I would aim for the best weight in your budget, that also has a similar spread for it's Princess counterpart. Like many diamonds, you can acheive a greater spread by looking for a shallower diamond. However this comes at a sacrifice. I suppose, its brilliance can still be quite good if the complimentary angles are cut with this in mind. I don't have an answer. VH (aka GroomZilla) --- This post was brought to you by the Church of Cut Quality. Note: I am not an expert. Just a friendly neighbor.
Posted: 6/18/2004 10:34:22 AM

P: 6/18/2004 10:41:36 AM
ep6585 Ideal Rock Total Posts: 609 Last Post: 12/28/2008 Member Since: 5/10/2004	No typo on my part. The depth% for the three are listed as 67.9, 65.7, and 57.6.
Posted: 6/18/2004 10:41:36 AM

P: 6/18/2004 12:09:12 PM
verticalhorizon Ideal Rock Total Posts: 840 Last Post: 3/24/2006 Member Since: 3/9/2004	I'm not sure I trust any diamond that is 0.57ct and has a spread of 5.5mm. Jon must have picked it for a reason, but it just don't seem right. Caveat emptor. Hopefully that one will be posted online soon. VH (aka GroomZilla) --- This post was brought to you by the Church of Cut Quality. Note: I am not an expert. Just a friendly neighbor.
Posted: 6/18/2004 12:09:12 PM

P: 6/18/2004 12:29:17 PM
Mara Ideal Rock Total Posts: 27,922 Last Post: 11/23/2009 Member Since: 10/30/2002	Regents are the same way. I have seen stones on J's site that are something like .55c and then a .70c or similar that have almost the same spread. IF the depth is fluctuating that much, it has a HUGE impact on spread. Just like a round brilliant. For me, I'd go with the diamond that is cheaper (aka smaller on paper) BUT has the better or similar spread to a larger one, e.g. lower depth most likely, of course assuming that all the reports and images show a stellar stone as well. Why pay for 70% depth and pay more for that last carat weight, when you can get an amazing stone that has 62% depth and a larger spread? ________________________________ "Insanity: doing the same thing over and over again and expecting different results." -Albert Einstein
Posted: 6/18/2004 12:29:17 PM

P: 6/18/2004 12:37:28 PM
noobie Ideal Rock Total Posts: 1,318 Last Post: 9/21/2007 Member Since: 3/3/2004	Yes, it's true the list has a .57c with a 5.5mm spread, but I believe that the list has all of the Jubilees available and has not undergone any selection process by Jonathan. I think he just wanted to let people know what was available. None of them have been tested as well. Judging by what has been sold on the GOG site, reading the tutorial and looking at the list, I doubt that the very deep or shallow stones would pass the screening process.
Posted: 6/18/2004 12:37:28 PM

P: 6/18/2004 12:47:55 PM
ep6585 Ideal Rock Total Posts: 609 Last Post: 12/28/2008 Member Since: 5/10/2004	A clarification... the list has everything that GOG was getting in and Jonathan said he wasn't even sure what was coming in before he got the list. So yes, GOG hasn't had a chance to screen them and some of them might not make it. I posted the info because I was surprised by how much variation there was.
Posted: 6/18/2004 12:47:55 PM

P: 6/18/2004 12:54:55 PM
valeria101 Ideal Rock Total Posts: 14,048 Last Post: 4/30/2006 Member Since: 8/29/2003	Ideal depth... since these stones are selected for brilliance, then whatever the specs are it is already known that the cut does it's trick - so the smaller the better Actually, below 1 carat you may see that girdle thickness, not total depth hides more weight (or has more of an impact on spread) - for what that matters Ana "The greatest experts are only as good as the sum total of what they have seen." [Souren Melikian]
Posted: 6/18/2004 12:54:55 PM

P: 6/18/2004 1:01:25 PM
Mara Ideal Rock Total Posts: 27,922 Last Post: 11/23/2009 Member Since: 10/30/2002	---------------- On 6/18/2004 12:54:55 PM valeria101 wrote: Ideal depth... since these stones are selected for brilliance, then whatever the specs are it is already known that the cut does it's trick - so the smaller the better ---------------- Exactly, Val. Regardless of hand-picking from the list, from what we have been told, the Jubilee IS an excellently cut stone. So I doubt J will turn down anything from that list...I don't think they are cutting any bad Jubilees. So then it definitely becomes smaller is better if the spread is the same as a larger stone. But then again, since the Jubilee pickins are so slim right now while they come up to speed on demand, people may not have the opportunity to really select what they would if there were more options. ________________________________ "Insanity: doing the same thing over and over again and expecting different results." -Albert Einstein
Posted: 6/18/2004 1:01:25 PM

P: 6/18/2004 1:37:45 PM
noobie Ideal Rock Total Posts: 1,318 Last Post: 9/21/2007 Member Since: 3/3/2004	---------------- On 6/18/2004 12:47:55 PM ep6585 wrote: I posted the info because I was surprised by how much variation there was. ---------------- Yes, I was suprised as well. I was expecting a tighter spread around 65%. Did you see the fancy intense yellow in there? Wonder what that looks like.
Posted: 6/18/2004 1:37:45 PM

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