Thai Ruby and Diamond Ring, 5.88 Carats

Burma Ruby and Diamond Ring, 5.20 Carats

Burma Pigeon-Blood Ruby and Diamond Ring, 3.16 Carats

Mozambique Ruby and Diamond Ring, 5.05 Carats

Ruby and Diamond Ring, 5.05 Carats

Untreated Star Ruby Ring, 11.07 Carats

Ruby and Diamond Ring, 4.44 Carats

Cabochon Ruby Ring, 8.03 Carats

Untreated Ruby and Diamond Ring, 3.02 Carats

Untreated Burma Ruby Ring, 3.82 Carats

Burma Ruby and Diamond Ring, 3.95 Carats

Untreated Burma Star Ruby Ring, 4.64 Carats

Untreated Burma Star Ruby Ring, 4.00 Carats

Burma Cabochon Ruby Ring, 6.31 Carats

"No Heat" Burma Ruby and Diamond Ring, 1.35 Carats

Untreated Burma Ruby and Diamond Three-Stone Ring

Burma Ruby and Diamond Ring, 1.66 Carats

Emerald-Cut Burma Ruby and Diamond Ring, 1.96 Carats

Ruby and Diamond Art Deco-Styled Ring, 2.54 Carats

Untreated Burma Ruby and Diamond Ring

Burma Ruby and Diamond Ring