Distinctive ring made of 18 karat yellow gold with a wide band shank that has a unique square shape and elongates to hold in the center a square cabochon of rock crystal, the colorless and transparent variety of quartz that in this case has a satin-finish. The ring is signed by Calderoni Gioielli, a company founded in Milan in 1840 that is able to enhance the characteristics of Made in Italy with its creations, captivating even European Royal Houses. Jewel with a truly original design, in perfect condition.