51. CLAUDIO MARIANI: DIAMOND BROOCH, 1972 • French import mark for 18 carat white and yellow gold (750 ‰) • Signed C. Mariani • Brilliant-cut diamond weighing approximately 0.30 ct • Diameter 8 cm​​ • Gross weight 51.08 grams Claudio Mariani (born 1936) was an Italian artist-jeweller and goldsmith based in Pesaro. Originally trained as a sculptor, he founded the goldsmithing department at the Scuola Mengaroni in Pesaro at the age of twenty-four and taught there for nearly two decades before dedicating himself full-time to his own workshop. Characterised by a distinctive use of hardstones and a focus on themes such as waves and energy, his work won the gold medal at the Milan Triennale in 1973 and was featured in the exhibition Immaginazione Aurea (Ancona, 2001), curated by Enrico Crispolti. Examples of his work are held in the collection of the Museo degli Argenti at Palazzo Pitti in Florence. CONDITION REPORT​ Overall condition: good, wear in form of minor scratches​, small areas of oxidation Diamonds: approximate overall colour and clarity: H-I, VS​ Fitting: double pin clasp with safety catch secure Marks: signed "C.Mariani 1972", numbered 2/5 This condition report is provided for your convenience based on the opinion of our gemmologists. Bonhams is not responsible for any discrepancies between this information and other opinions.