The bead is manually set under heat in a expressly made squared, silver frame. It is made with a process similar to the "sommerso" technique, that consists on a layer of coloured glass with the inclusion of a platinum leaf coated with a crystal colourless layer, so that the coloured glass appears to be "submerged" (sommerso), as if it was under a veil of clear, transparent water. This simple but refined ring will give you the chance to hold a piece of Venice always with you.(The Sizes are in the range: 12 - 22 according to the Italian standard ring-sizes.The figures: 12 - 22 are related to the actual size of the silver band: "size 12" means that the interior diameter is 12 mm [1.2 cm = 0.47 inch] and so on...You just have to contact us to know if your size is in stock: we will tell you about the availability or about the required manufacturing time!) The glass has been handcrafted in Venice, then mounted and finished in Florence.