▁a ▁speaker ▁at ▁the ▁ 1 st ▁International ▁Diam ond ▁C ut ▁Conference ▁( ID CC ) ▁in ▁Moscow , ▁Russia . ▁ ▁The ▁H CA ▁has ▁been ▁used ▁to ▁grade ▁the ▁cut ▁quality ▁of ▁millions ▁of ▁dollars ▁of ▁diam onds ▁in ▁its ▁first ▁year , ▁and ▁bill ions ▁over ▁the ▁past ▁de cade . ▁ ▁H ollow ay ' s ▁H CA ▁pat ent ▁was ▁granted ▁on ▁ 3 1 ▁July ▁ 2 0 0 7 . ▁His ▁diam ond - cut ▁consult ancy ▁has ▁strong ▁al li ances ▁with ▁leading ▁international ▁diam ond ▁research ers ▁and ▁websites . ▁ ▁References ▁ ▁Gem ▁E valu ation ▁Method ▁Ear ns ▁Pat ent , ▁Rap ap ort ▁News , ▁August ▁ 2 0 0 8 ▁ ▁G IA ' s ▁Response ▁to ▁Let ter ▁to ▁the ▁Editor ▁of ▁the ▁Australian ▁Gem ologist ▁Pr ices cope ▁Diam ond ▁Journal , ▁ 2 4 ▁February ▁ 2 0 0 7 ▁ ▁G IA ▁Ex cell ent ▁C ut ▁Gra de ▁Case ▁Study ▁Pr ices cope ▁Diam ond ▁Journal , ▁ 1 4 ▁March ▁ 2 0 0 6 ▁ ▁Ide al - Scope ▁Diam ond ▁System ▁International ▁Diam ond ▁C ut ▁Conference ▁( ID CC ), ▁January ▁ 2 0 0 4 ▁ ▁Ide al - Scope ▁Reference ▁Chart ▁Ide al - Scope ▁Website ▁ ▁International ▁Diam ond ▁C ut ▁Conference ▁ ▁V ision ▁Imp act s ▁Spark le ▁http :// www . rap net . com / News / News Item . aspx ? Art