Hidden halo oval center stone ring 3d file....?

Looking to add a 3.5 carat oval diamond to an existing 8mm wide wedding band. Thinking about a hidden halo low profile. Setting would need to be white gold or platinum. Not sure what a setting and mounting the stone will cost, any advice on cost would be appreciated. This is close to what we have in mind, kind of a double halo with the bottom halo sitting flush with the band, the bottom of the diamond would go all the way through the band and could be seen from the inside of the band. I’m not sure this will even fit and having a 3D file will help.

Brian

Well this is the best I could do. I know nothing about rendering at all. The existing band (10k gold) is purple, new setting is pink and would be white gold. The stones will be diamonds. I’m still not sure this can even be done…? File is attached, it’s ugly but I think it
s good enough to get the idea across.
8mm-existing-band-added-hidden-halo-3.5-carat-oval-dia.3dm (12.6 MB)

Brian

Hi Brian,
Looks doable but a bit ugly :slight_smile: Ideally the same person would work with the band and gemstones all on hand, print and cast in house and then assemble in house.

Most of the CAD printing/casting houses will be able to give you a quote to design, print and cast the setting. You would then need to get a quote from someone to assemble the setting to the ring and then to have it set.

Perhaps some of the CAD jeweller groups or forums that I am sure must exist might be a better place to post this. Guessing you are not in the jewellery trade?

In the end you are going to need a bench jeweller to work with your exisiting band and it might be better to let them get the rest done (if they do not do cad and or cast) so that it is right for them when it all has to come together.

cheers,
Sochin

Thank you for the advice…I’m definitely not in the jewelry business although I am in the stone business, marble, granite and quartz. I did this model to just show the idea of what the wife wants. I hope to find a local bench jeweler to do all the work. I’m not sure my approach is even the best way to go about achieving the look she is after. For such a wide band the stone will need to be huge, the bigger the stone the taller the setting will have to be and therefore the more it will catch on everything. Getting the lowest possible setting is important to her.

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Maybe this would be a better method…? Same design just different approach. I’m not sure if the sitting would be strong enough…? The prongs would have to be inset and welded to the band…?

Brian

Hi Brian,

This is a really straight forward job for a bench jeweller like myself …and to be honest just hand making that setting might even be quicker.

The size and especially the depth of the gem when it meets the predefined band is going to dictate a lot of the look.

Unless the band was sentimental I would not design such a piece around it. You should go speak to a bench jeweller. Good luck.

cheers,
Sochin

I cleaned up the halo and selected a little bigger center stone. The prongs are still bad but the bench jeweler that will be doing the work will do their own cad model and then 3D printed resin model before the work begins.

Sochin…Thank you for confirming that this could be done, I was getting different stories from different folks. You gave me the confidence to act like I knew what I was talking about. Now I just have to select the center stone.

Brian


RING-METRIC-2.3dm (4.9 MB)

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@bwheeler glad to help. Honestly, unless they cannot work by hand, other than laying out the design, printing and casting that is overkill. Hand making it and attaching it to the band will be quicker.

cheers,
Sochin

I think they do the CAD and casting to just cover their behinds. It is cheaper than I expected it to be. I think we found a nice diamond….Actually the one I looked at when I made this revision. It’s the e same length width and depth. I didn’t bother checking table. I hope with the halo and the bottom of the diamond sank into the band it doesn’t get to much grey color. I understand that can be an issue with this kind of design…?

Let the bench jeweller handle all that. I don’t see an issue with colour cast for that setting other than the yellow gold being at the base. Just get them to high polish all the metal under the gem.

To prevent the casting of any of the yellow colour through the gem from the band under (even if it is just the side of the hole) get the jeweller to rhodium plate white any of the yellow gold behind the gem. This area never gets any contact so the plating will be permanent unless you decide to remove it.

All of this is just matter of fact for any jeweller that knows his trade. You are over thinking this IMO. Concentrate on getting the right gem and finding a good jeweller and let them do their job.

cheers,
Sochin

Oh I definitely over think everything…Just ask my wife I drive her crazy. It doesn’t mater if I’m buy a new TV, car or diamond I do way more research than is really needed.

Brian

Hello Brian,

You are not at all over thinking this time. For a diamond of this size and cut / shape there is allot of [for me it would be] fun research / work to do. There are a number of gemstone grading organization resources you can utilize. Depending on where you live perhaps a local gem club and or Lapidary to. I believe you will find that the cut / shape which is the most standardized is the “round brilliant” [other names for this]. I am not doing the C’s as simply a work flow matter. You had inquired about the cost of this ring and the answer really is “it all depends”. Many variables , and starting with the cut [ faceting] is I believe the foundation. Here is a link to one of some who were at the beginning: Diamond Design--A Study of the Reflection and Refraction of Light in a Diamond--by Marcel Tolkowsky. Edited and corrected by Jasper Paulsen.

Thank you,

Andy

p.s. One design that am thinking about now has been on the “digital” shelf for about a year or so because the real work of the matter has not been done yet. You guessed it; the gemstone cut.

The oval shape my wife wanted didn’t help matters any…As I’m sure you know ovals and bow-ties go hand in hand…The stone we ended up going with has great sparkle and brilliance but does show a bow-tie depending on the light. She didn’t seem to mind and the stone was within budget so we bought it. Only the largest chain type jewelry stores carry ovals in this size and they get double what the online stores get for pretty much the same stone. We ended up buying it from a small local jeweler who brought it in for us to inspect before we decided. He is having “his guy” make the setting and adding it to her existing band. I never really got a straight answer if this was an employee of his or a sub contractor. I’m not sure it really matters much anyway. Our jeweler is handling everything and all funds will go through him. For anyone wondering this is a lab diamond…The stone drafting business doesn’t pay well enough for me to spend mined money. I told the wife if anyone ask if it’s a mined diamond to just tell them yes it’s mine.

I have a brain full of what will now be unless diamond industry knowledge.

Brian

Just ran across this old post and realized I never posted the pics of the finished ring. I wasn’t too thrilled with the craftsmanship but my wife loved it when she saw it in-person and that’s all that really matters to me.

Brian