Yellow gold signet ring sets with a cabochon lapis lazuli
Jadeite mounted on yellow gold signet ring
Signet ring with nicolo
Signet ring with texture
Octogonal signet ring in gold
Yellow gold signet ring
Signet ring with hallmarks
Study of signet ring in yellow gold with initials RB
Signet ring mounted with 3 rubies and with Jerusalem cross
Signet ring