How to solder without burning the stone?

[MilkyDiamond]

I’m trying to set a small diamond on top of a turquoise that has a drill hole in the middle. The style is quite like the pictures shown below. But turquoise is quite delicate and will change color with heat. Is there a way that I can do it without damaging the turquoise? Can I use a thin tube and rivet it? Another fear of hammering and cracking the turquoise comes along with riveting. Please help.
People had previously done it with an Amber, Amber is a very delicate stone to work with. So i think it can definitely be done.



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[Dennis]

Hi Milky, and welcome to the forum.
You can't heat the turquoise, so solder the tube to the ring. Put on the stone with the tube through the hole and spread the tube slightly, by inserting a scriber, or other pointed object and wriggling it a little. No hammer required.
Use the surplus tube, which is projecting, to set a suitable round diamond. Dennis.

[MilkyDiamond]

Hi Milky, and welcome to the forum.
You can't heat the turquoise, so solder the tube to the ring. Put on the stone with the tube through the hole and spread the tube slightly, by inserting a scriber, or other pointed object and wriggling it a little. No hammer required.
Use the surplus tube, which is projecting, to set a suitable round diamond. Dennis.

Hi Dennis,
Thank you for your reply. The hole of the turquoise is a little bit wider than 1mm in diameter. So I can only use a 1mm tube at top. Don’t think it’d be applicable to set the diamond with it the diamond is cushion shape 4.6*4.6


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[Dennis]

You can enlarge the hole easily with a tapered diamond, either in your motor, or by hand using a bead reamer. So you can use a larger tube and set a round diamond.
I've no idea how to set that square one though. Dennis.

[MilkyDiamond]

You can enlarge the hole easily with a tapered diamond, either in your motor, or by hand using a bead reamer. So you can use a larger tube and set a round diamond.
I've no idea how to set that square one though. Dennis.

Did you mean 1. Enlarge the 1mm tube, 2. Set larger tube bezel set diamond in the 1mm tube ?
That sounds applicable but I might need some practice before that doing the actual piece.
Thank you!


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[Dennis]

No, a 1mm tube will be useless. Use a 2.0 or 2.5mm tube and enlarge the hole in the turquoise accordingly.
When the turquoise has been set as described above, leaving spare tube projecting, make a seat for tube setting and order a round diamond to fit. Dennis.

[MilkyDiamond]

Thanks for everyone’s input. I will solder the diamond setting on the tube, set the diamond. Put tube through turquoise then rivet tube onto the shank.
Will probably do a progress update when I’m making it


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