Description
The Volcano Carbon Ring it is built on a color gradation ranging from red to orange to yellow — hence the name. In the center a 2.63 carat natural ruby; around, stones chosen to continue the passage rather than to oppose it.
The stones
Natural shaded rubies for 0.79 carats they lead red towards orange. Natural orange and yellow sapphires for 1.05 carats They are closing La Scala. Brilliant cut diamonds for 0.20 carats, F/G color and VS clarity, provide the points of white light.
Ruby and sapphire are the same stone—corundum—with different impurities: chromium gives red, iron and titanium give blue, and other combinations give orange and yellow. This is why in a piece like this the stones have the same hardness and the same behavior under light, despite being of different colors.
Data Sheet
- Material: Rose gold 18 kt
- Natural ruby 2.63 ct
- Natural shaded rubies: 0.79 ct
- Natural orange and yellow sapphires: 1.05 ct
- Natural brilliant-cut diamonds: 0.20 ct, F/G color, VS clarity
- Weight: 15.10 g
Each jewel is handmade: weight and caratage may vary slightly from what is indicated.
The Artistry of Risivi & Co
A nuance cannot be designed on paper: it is composed on the workbench by testing the stones in sequence, discarding the ones that break the flow. Many more stones are needed than the ones that end up on the piece of jewelry.
Would you like more information about purchasing jewelry or commissioning a custom piece? Book a private online video consultation or an appointment at our Risivi & Co. Boutique.
Each piece is handmade in our workshop in Rome and can be commissioned in any size and gold color: the price varies based on the final weight of the jewel and the carat of the stones.





