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Opinions wanted for CAD on a cobalt spinel project!

kaymart

Rough_Rock
Joined
Nov 9, 2016
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Hello all, and happy 4th of July!

I'm working with David Klass on my first custom piece of jewelry (eee!) and would love any input on this CAD before we finalize. This is going to be a right hand ring featuring a beautiful 3.14ct lab-created oval vivid cobalt spinel, precision-cut by Jeff Davies, with lab diamond (F, VS) sidestones, set in platinum. The color of the stone is great, like a beautiful royal blue sapphire got a little zap. In the least flattering light it goes inky but still visibly blue, and in the most flattering light it POPS!

Style goals for the piece/setting:
  • elegant and unfussy, special-feeling but not showy (I want to be able to wear this casually, and at work, and I work in a hospital)
  • highlighting the center stone while also avoiding getting too engagement/solitaire, so aiming for sidestones with presence, but not overshadowing the center
  • classic but non-ubiquitous
  • subtly floral
  • claw prongs

Practical goals:
  • as low a profile as possible given the depth of the stone
  • durability and ease of maintenance in mind (acknowledging this is spinel, of course)
  • ideally no catching on sweaters, hair, etc (though I imagine this has as much to do with prong craftsmanship as it does with design)

Inspiration:
I was most inspired by this incredible vintage ruby ring by Van Cleef & Arpels, though the center stone is a real honker, so of course the proportions are adjusted for my stone. I also like this sapphire piece from 1stdibs, though the sidestones are larger than I'd prefer for my own piece, and I'd prefer more standard prongs than that interesting shared prong situation connecting the sidestones.

VCAring.webpsapphirering.webp
Here's the CAD!

DK 117345-QUAD-1.jpg

The design we've landed on feels to me like good proportions, with a nice gentle slop/graduation from the center to the sidestones. What do folks think?
I'm happy with the gallery, I don't need anything decorative there, would rather prioritize maintenance ease.

My biggest questions:

1. Thoughts on prong placement for the marquise stones? Most designs I see have prongs on the tips, presumably to protect them (for some reason I basically never see V-prongs in styles like this, interestingly), but this CAD goes with the more unusual (but cool) VC&A prong placement. Perhaps these diamond tips may not be at as much risk because their arrangement sort of...tucks them in?

2. Do we like the double claw prongs, or do folks think the spinel needs/would benefit from 6 prongs? Seems it'd be dicey to figure out the placement of the latter with the sidestones.

3. It looks like the marquise will not overhang on the hand, right? I want to see metal on either side of the sidestones, nothing poking into my other fingers.

Thanks for your attention, and I'd love any thoughts/comments/recommendations!
 
I would do v-tips on the ends for sure. For comfort as well as ease.

It’s a lot of prongs and if you do claws it will be pokey and catch on things. If my ring, in addition to making the end prongs Vs, I would explore reducing the number of prongs and using tab prongs and other similar styles of smooth prongs.
 
I would do v-tips on the ends for sure. For comfort as well as ease.

It’s a lot of prongs and if you do claws it will be pokey and catch on things. If my ring, in addition to making the end prongs Vs, I would explore reducing the number of prongs and using tab prongs and other similar styles of smooth prongs.

Great points, thank you!

Follow-up question: potentially going even further in the direction of reducing prongs and comfort/ease, what do you think of V-tips vs. bezels on the sidestones? I've seen a few settings like that, I do like the security of it, though not sure if it would threaten the aesthetic (bulking it up, more contemporary, drawing the eye away more so from the center stone)?
 
Great points, thank you!

Follow-up question: potentially going even further in the direction of reducing prongs and comfort/ease, what do you think of V-tips vs. bezels on the sidestones? I've seen a few settings like that, I do like the security of it, though not sure if it would threaten the aesthetic (bulking it up, more contemporary, drawing the eye away more so from the center stone)?

I would find an example that looks like you want. It’s the most helpful for making decisions in my experience. Whisper thin bezels would look lovely. My star sapphire has similar and I like it a lot.

IMG_1443.jpeg
 
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