Unparalleled Style Constantly studying light, minerals and form, Zava's gemstones express his artistic vision reflecting an unusual balance between precision and grace. Known for his creativity with classic gem cutting styles, Clay works regularly with top jewelry designers and private collectors worldwide. Hand Selected Gems Each stone is hand selected, painstakingly cut, and calculated for maximum brilliance. Zava has worked with a wide variety of gem materials and has designed cuts for over 40 individual Spectrum Award winning jewelry pieces.