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From render to silver: how your ring is made and why it takes 10 days

Buying a ring online from a workshop you do not know takes trust. This guide tells, step by step, what happens between the moment you build it on screen and the day you hold it, with the real figures of the Hinge Ring.

Updated on September 25, 2026

1. A model that already is the ring

It all starts in Rhino, a design program that describes surfaces with exact curves, not with thousands of approximate triangles. So the inside diameter, the band width and the thickness of every wall stay as they are defined, to the hundredth of a millimeter. The Hinge Ring has a 5.5 mm band and, in size 9, measures 18.9 mm inside and 26.7 mm outside.

What you see turning in the configurator is that same model: the production geometry, not a separate illustration. That is why the 3D is there to decide, not just to look.

2. The size, confirmed before casting

A ring with hinges cannot be made larger or smaller afterwards, so the size is confirmed before anything is printed. In Bogotá we send you a free set of 3D printed ring gauges, from size 5 to 13; outside Bogotá you only pay its shipping (COP 15,000). The measurement goes into the order in millimeters. How to measure it yourself, and how far off each method can be, is in the ring size guide.

3. The castable resin print

With the size set, the model is printed in a castable resin, made for casting: in the kiln it burns away with almost no ash, so it does not dirty the metal. We use Siraya Cast on a resin printer that hardens 0.03 mm layers with light, fine enough for the hinges and the stone bezels to come out with the detail of the model.

Before printing, the part gets its sprues, the channels through which the silver will later flow. When possible they come out of the inside face of the ring, so the mark left when they are cut is not in sight. The printed part is washed and cured with light before going on.

4. Lost wax casting

It is the jeweler's method of always, with one change in the first step: where there used to be a model carved in wax, now there is a printed one.

• The part is attached by its sprues to a wax trunk, together with others, forming a tree.
• The tree goes into a flask and is covered with a special plaster that withstands the heat.
• In the kiln, the resin and the wax burn away and leave the exact hollow of the ring inside the plaster.
• Molten 925 silver flows into that hollow and fills it to the last detail.
• Once it cools, the plaster is broken and the ring appears in metal, still joined to the tree.

5. Cutting, polishing and setting

What comes off the tree is a raw part: the sprues have to be cut, the marks filed, the silver polished to a shine and the hinges checked to make sure they move. Then the eight cubic zirconias of about 4.5 mm are set, each in its bezel, a metal ring that closes over the edge of the stone. The finished ring weighs about 6.5 g of 925 silver in size 9.

Why it takes 10 business days

Each step waits for the previous one: printing and curing, casting, which is done by trees and not part by part, cooling, cutting and polishing, setting and the final check. The configurator gives you the approximate date if you pay today, counting only Colombian business days.

And once you have it

925 silver darkens over time, and faster with sweat, perfume and chlorine: take it off to shower or swim and keep it dry. It carries a six month warranty against manufacturing defects; the details are in the terms of sale.