Lab po diamond ti wa ni lasiko ṣẹda lilo ọna meji - CVD ati HPHT.Ipilẹṣẹ pipe nigbagbogbo gba kere ju oṣu kan.Ni ida keji, ẹda diamond adayeba labẹ erupẹ Earth gba awọn ọkẹ àìmọye ọdun.
Ọna HPHT nlo ọkan ninu awọn ilana iṣelọpọ mẹta wọnyi - igbanu tẹ, tẹ onigun ati titẹ pipin-Spere.Awọn ilana mẹta wọnyi le ṣẹda titẹ giga ati agbegbe iwọn otutu ninu eyiti diamond le dagbasoke.O bẹrẹ pẹlu irugbin diamond eyiti o jẹ aaye sinu erogba.Diamond naa yoo farahan si 1500° Celsius ati titẹ si 1.5 poun fun inch square.Nikẹhin, erogba yo ati pe o ṣẹda diamond lab kan.
CVD nlo nkan tinrin ti irugbin diamond, ti a ṣẹda nigbagbogbo nipa lilo ọna HPHT.A gbe diamond naa sinu iyẹwu ti o gbona si iwọn 800C eyiti o kun fun gaasi ọlọrọ carbon, gẹgẹbi Methane.Awọn gaasi lẹhinna ionize sinu pilasima.Erogba mimọ lati awọn gaasi faramọ diamond ati crystallized.