RUBY AND DIAMOND RING
Cushion-cut ruby of 3.07 carats, old-cut diamonds, ring size O
Gübelin, 2016, report no. 16050106: 3.07 carats, Burma (Myanmar), no indications of heating
Gem & Pearl Laboratory, 2015, report no. 11547: 3.07 carats, Burma, no evidence of heat treatment
RUBY AND DIAMOND RING
Cushion-cut ruby of 3.07 carats, old-cut diamonds, ring size O
Gübelin, 2016, report no. 16050106: 3.07 carats, Burma (Myanmar), no indications of heating
Gem & Pearl Laboratory, 2015, report no. 11547: 3.07 carats, Burma, no evidence of heat treatment
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