French 19th Century “Gothic Revival” ring set with a very fine square step cut emerald (approx. 2 carats TW) and two European rose cut diamonds (approx. 2 carats TW) all in an openwork 18K yellow gold mount further set with 12 old mine cut diamonds, signed, c.1885
Ettore Sottsass / Cleto Munari Diagonal stripe and pyramid ring, 18K gold architectural with inset onyx stripes on a diagonal, inset with approx. 8 carats TW of pave diamonds, signed: Sottsass (script signature), No. 1, CM (Cleto Munari), a star 1611, VI (all in a lozenge), 750, Cleto Munari, c. 1985
Ettore Sottsass / Cleto Munari ring illustrated in Jewelry By Architects: From the Collection of Cleto Munari by Barbara Radice (Rizzoli, 1988)