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I'm quoting from this thread- you had made a great post about crushed ice - containing the above. That's the part we may feel differently about.Regarding "crushed ice" look of diamond there are currently two ideas that come to mind when people say this in the realm of diamonds.
It can refer to
a. A really bright diamond whose optical characteristics emphasize many small flashes of of white light in diffuse/ambient lighting and a ton of scintillation in spot lighting (as seen in some rare fancy cuts and in rounds like Star129).
FuturePsyD said:Rhino,
I'm really new to PS, so I don't even know if this is appropriate to ask on here, but are you able to make any recommendations for those of us who would like to go with a big designer house?
I've been trying to educate myself as much as I can on the various types of cushions, and I can see that I've only touched the tip of the iceberg. Since I am a big fan of HW Micropave, i felt the modified cushion alway looked lovely in that setting. Do you feel its possible to get the "watery crushed ice" look even from them?
Also, are modified brilliants the only cut that is seen as having the crushed ice appearance (whether in a good way or not)?
Thanks!
Dreamer_D said:It seems like there is a variety of cushions in the HW rings, as people have mentioned. If you want HW, then simply ask to see a few and pick the one that looks best to your eye! Problem solved
Here's Jon's post in entirety, as quoited earlier in this thread- which asks if crushed ice is bad.ChunkyCushionLover said:I agree 100% with Rhino's post from here https://www.pricescope.com/forum/rockytalky/what-causes-the-crushed-ice-look-t147859-60.html
Regarding "crushed ice" look of diamond there are currently two ideas that come to mind when people say this in the realm of diamonds.
It can refer to
a. A really bright diamond whose optical characteristics emphasize many small flashes of of white light in diffuse/ambient lighting and a ton of scintillation in spot lighting (as seen in some rare fancy cuts and in rounds like Star129).
b. A diamond that exhibits very little light return and at best reflects back some pinpoints of light. The "crushed ice" effect here could be more accurately described as "watery, slushy crushed ice".
Most folks I talk to and in real world conditions, the latter is the one most referred to and I particularly do not care for it as it is the general result of excessive light leakage under the table and causes a diamond to look virtually dead in those areas.
In scenario a. above the facet design is highly responsible for the small bright reflections and high scintillation.
In scenario b. above facet design has little to do with the watery crushed ice effect as you can get it in many facet designs.
What contributes to it primarily is proportion factors and you can have it in both chunky/vintage faceted diamonds as well as modern or modified brilliant facet designs. Most radiants and many cushions are cut in this fashion as well and is generally the result of pavilion angles that are cut too shallow coupled with crown angles that contribute to the excessive leakage existing under the table.
I personally like crushed ice a. but do not care for crushed ice b.
To those who design cuts of diamonds or study them, this is not a mystery, the cause of this effect can be ray traced with Diamcalc, Gemcad and designs can be adjusted accordingly.
To others who would rather discuss this look qualitatively, guess at its origin, and debate personal preference we will continue to have these long threads where the same opinions are given over and over because new posters do not do adequate searches of the archives before posting.
TakingthePlunge said:Not sure why youre trying to time machine back just to reiterate that Jon has acknowledged both good (bright) crushed ice and bad (watery) crushed ice. To me it seems the thread has moved past that and I doubt you will get him to say anything different.
My question is that since Jon has now stated that you can have bright crushed ice I would love to see an example. Whenever Ive seen crushed ice is accompanied by a leaky ASET / IS. Is it possible to have crushed ice with a fairly complete light return? Pictures would be great.
Rockdiamond said:Here's Jon's post in entirety, as quoited earlier in this thread- which asks if crushed ice is bad.
Jon identified two types of crushed ice- one good, one he does not like.
In the description of the "good" type, he mentions that the "good" type is only found in "rare fancy cuts and rounds like star 129"
I disagree.
Rockdiamond said:Given that we can see the clear bias against crushed ice right here in this thread, that statement was what I questioned. Jon, all due respect, but you never answered that.
Rockdiamond said:Secondly, I feel that there are a lot more than only two types of "crushed ice" looks found on the market.
It's also clear to me that documenting the crushed ice look- due to it's very nature- is far more difficult than photographing stones that have chunky flashes-or patterns.
I don't feel that any of the tools ( other than the human eye) can be used effectively for this purpose.
Which tools did Jon mean when he said we should use tools to select crushed ice?
Rockdiamond said:Pejorative statements about what "newbies" do and do not understand....or how you can find crushed ice at every stand on 47th street are insulting to the intelligence of readers.
This would mean that your clientele won't be nearly as likely to ask for such stones. It's possible ( likely) that your own personal taste affect what people ask you for.And you have every right to. My experience over the years of calling in radiants and cushions has been the negative crushed ice. Still is till this day.
Sounds like you got a great sales rep on the phone. I like their descriptions of things & think its an interesting & believable answer for why they choose they types of cushions they do for that particular setting. Re: the "rainbow" effect. Its not so crazy if you think about it. Diamonds are like prisms to some extent. Bigger, chunkier facets reflect all colors of light. You see the same "rainbow" effect in vintage (and some newly cut) Old European Cut stones. It is COVETED by lovers of antique stones. I think of it as a sort of pastel watercolor impressionist painting look. Dappled in soft multiple colors -- kaliedescopic vs truly *brilliant*. I'm sure you'll observe these things yourself in person if you're exposed to the different styles of cushions. Then its truly a matter of personal preference. Good luck!FuturePsyD said:T
Only comment that surprised me was that the Cushion Brilliant had a rainbow effect vs. the Modified having a white/bright appearance? But, then again, I am a "newbie"
FuturePsyD said:This has definitely been an interesting thread and I have learned a great deal more than I had anticipated when I first posted the topic.
I certainly agree that it comes down to going with what I like the best, but I wanted to make an educated decision instead of blindly going with whatever HW recommended as being "the best look"
I called HW this afternoon, and spoke with a different SA than the one I have worked with, to ask about the center stone(s) that is typically used in the Micropave, and why? (of course I do intend on going in to compare and not relying on information gathered in a phone call) The SA told me that they use 2 types of centers, Modified Cushion and Brilliant Cushion. He said, which I found interesting, that the Modified has a "white" look whereas the Brilliant Cushion has the "rainbow" look.
The SA was probably talking about a diamond's fire(or its ability to separate and return colored light to the viewer). Vintage style or "chunky faceted" stones with steep crown angles and large virtual facets(flashes of light) have a greater ability to return colored light called dispersion (white light separated into several colors) in some lighting than the modified cushions do.
Also, that the Brilliant Cushion has all the same characteristics of a Round brilliant except for its shape (with 50-60 facets).
I have not heard of HW carrying a cushion shaped hearts and arrows stone like the Square Cushion Hearts and Arrows(SCHA) so I think that comment was probably an oversimplification of sorts.
And that the Modified Cushions (with 65-70 facets) made the ring look whiter and brighter and worked better with the pave halo and that is why HW recommends the Modified Cushion w/ the Micropave ("when asked for their opinion").
It is often the case that well cut stones with smaller and more numerous virtual facets and faster scintillation( more frequent sparkles) can appear whiter and hide body color better in some lighting. No matter what type of cushion you choose the body color of the cushion will contrast the color of the round brilliant melee(smaller diamonds) in the halo to some degree. Smaller round brilliants appear brighter and whiter than most larger diamonds even if they are graded the same body color.
The contrast between the center and the melee will be even greater when an antique "chunky" style of cut is mixed with modern round brilliants. Some people notice this and like the contrast, others don't notice the difference that much, and others still prefer to minimize contrast and choose a modern cushion which is closer to the cut of the melee diamonds(the closest would be SCHA.
I think you had a pretty good salesperson that helped to describe to you some of the nuances between different cuts, now you can take a look in person to see what your preference is.
Your 2nd link doesn't work CCL. I wanted to go back & oogle again.ChunkyCushionLover said:The finished HW inspired micropave ring is posted here https://www.pricescope.com/forum/sh...let-me-post-pictures-of-her-rings-t137909.htm
decodelighted said:Your 2nd link doesn't work CCL. I wanted to go back & oogle again.ChunkyCushionLover said:The finished HW inspired micropave ring is posted here https://www.pricescope.com/forum/sh...let-me-post-pictures-of-her-rings-t137909.htm
Rockdiamond said:Thank you Charmy!
I needed a good laugh.
I'm sure all the "slimy vendors" you refer to won't be insulted....and have little doubt you don't understand that insults are insulting.
Anyone keeping up with PS over the past few weeks will have knowledge that the 47th street "downstairs" retail area is perilous, at best. Therefore stones seen there should not be taken as any indication of the broad market.
Virtual inventories are also not a good indication of the broader market- as the selection process, over time, makes the percentage of lesser looking diamonds higher.
SNIP
We have a lot of people looking for the best in "crushed ice" look- so my take is that the look is very popular.
slg47 said:cushion brilliant is not the same cut as round brilliant. there are cushions that exhibit optics similar to H&A round brilliants, this is the square cushion H&A sold by GOG.
in fact, cushion brilliant can refer to a number of different faceting patterns, which are outlined in this article by CCL
https://www.pricescope.com/journal/new_g ... t_diamonds