Question 1

Is this 3D model really free?

Accepted Answer

Yes. There's no account, no watermark and no limit. You can print it, cast it, render it and sell what you make. If you share the file itself, please credit Bling AI with a link to this page.

Question 2

Which file should I download?

Accepted Answer

STL for 3D printing or a casting house: the metal only, as one closed solid. 3DM to open in Rhino or Matrix, with the metal and stones on their own layers. OBJ for Blender, KeyShot and most other 3D software. GLB for the web, AR and quick renders, with metal and diamond materials. All of them are in real size.

Question 3

Is it ready to print and cast?

Accepted Answer

Yes. The piece is one closed solid (no holes, no overlapping shells) in real millimetres, so it can go straight to castable resin or wax. Ask your caster whether they want it scaled up for shrinkage. Every stone's seat is cut to its exact shape. Prongs are modelled closed over the stones, as they look once set; a setter opens them slightly to drop each stone in.

Question 4

How much does a solitaire pendant weigh?

Accepted Answer

This one, as first shown, is about 0.46 g in 14k gold, 0.54 g in 18k gold and 0.74 g in platinum, measured from the 3D model itself. The table above has other sizes.

Question 5

What chain fits the bail?

Accepted Answer

The opening is 2.6 mm across, so most cable, box and rope chains up to about 2 mm thread through, clasp first.

Question 6

Can I make product photos from the model?

Accepted Answer

Yes. Make product photos of it opens the piece in our 3D viewer: choose the metal and angle, and Bling AI turns that view into studio and on-model photos. That part needs a free account.

Stone	10k gold	14k gold	18k gold	Platinum	Sterling silver
4 mm (0.24 ct)	0.26 g	0.29 g	0.35 g	0.48 g	0.23 g
5 mm (0.47 ct)	0.28 g	0.32 g	0.38 g	0.53 g	0.26 g
6 mm (0.80 ct)	0.34 g	0.39 g	0.46 g	0.63 g	0.31 g
6.5 mm (1.02 ct)	0.40 g	0.46 g	0.54 g	0.74 g	0.36 g
7 mm (1.28 ct)	0.47 g	0.54 g	0.64 g	0.87 g	0.42 g
8 mm (1.91 ct)	0.65 g	0.73 g	0.87 g	1.2 g	0.58 g
9 mm (2.71 ct)	0.86 g	0.97 g	1.2 g	1.6 g	0.77 g

Solitaire pendant, free 3D model

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How much does a solitaire pendant weigh?

Weight by stone size

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