“Hugo Freund & Co”

grs muzo green emerald idex rapnet rapaport blue diamond melee blue diamonds blue diamond www.hufofreund.com gubelin gem lab swiss the gemological institute of america gia violet diamond red melee diamonds green melee diamonds green diamond red diamonds red diamond hugo freund & co founded in 1908 type iia diamonds diamanterie hugo freund & co logo type ii a diamonds hugo freund & co logo b & w