By their mode of formation, they are highly hydrated and are sensitive to changes in temperature and humidity. So you have to take care of it. This must be taken into account when choosing an opal for your jewel project.
There are different kinds of opals, noble opals and Mexican fire opals are the best known.
In this case, it is the manufacture of a yellow gold ring with a Mexican fire opal accompanied by a small brilliant diamond.
The creation of this ring begins with the choice of the opal that will be set.
Once the opal has been chosen, you can begin the work of rolling the gold.
Here 18-carat yellow gold.
In order to create the ring and set the stones.
A laminated gold plate is cut into a thin strip of metal to create the setting of the opal.
At this point, we can begin making the ring of our ring.
A small 18-carat yellow gold bar is rolled into a wire and then passed through a die to give it the right diameter.
The wire can then be shaped on a triboulet and welded at its ends.
We then have the ring body and the closed set of opal that are ready.
We still have to prepare the diamond support for the closed setting of the latter.
This is a piece of round wire in which will be drilled a hole and then set the round diamond of 1.5 mm.
At this point we can then crimp the opal.
This operation is done in the last considering the fragility of the stone, one thus avoids to spoil it by putting it in place at the very end of the manufacture.
We can then admire the final rendering.