Mu 1819, Dr. E. D. Clarke yakozesa payipu empya eyayiiya okusaanuusa amayinja ga rubi abiri ku kkoolaasi, mu butanwa n’avaamu ekintu ekipya-endabirwamu ya ruby.
Mu 1837, omukugu mu by’eddagala Omufaransa Marc Gaudin yatandika okunoonyereza mu ngeri entegeke ku mayinja ag’omuwendo okusinziira ku ndowooza y’eddagala. Yakola ekisengejjero ekijjudde ekya potassium dichromate ne potassium sulfate, n’oluvannyuma n’asaanuusa ebisigadde n’afuna obuwundo bwa aluminiyamu okisayidi, bw’atyo n’atandika ebyafaayo ebitongole eby’okusengejja amayinja ag’omuwendo mu kemiko.
Mu 1877, Ferey n’abalala baakola amayinja ga rubi agasooka ag’obutonde agasaanira okusala n’okusiimuula nga bakozesa enkola ez’enjawulo, ne bakola obutafaali bwa ruby obuyitibwa rhombohedral ruby crystals obuzitowa nga 1/3 carat.
Mu 1882, amayinja amanene aga fused rubies (Geneva rubies) gaalabika ku katale k’e Bulaaya.
Nga mu mwaka gwa 1900, Verneuil yakola ebiwujjo bingi ebirabika obulungi era eby’omutindo ogwa waggulu-eby’omutindo ogwa waggulu-nga akozesa enkola ye eyayiiya ey’okukula kw’ekiristaalo ekisaanuuse. Enkola eno yasobozesa okukola amayinja ag’omuwendo ag’ekikugu mu by’obusuubuzi mu ngeri ennene-.
Mu 1918, Chochralski yakola enkola ya Bridgman (enkola y’okusika) ey’okukula kw’ekiristaalo ekisaanuuse, ekyaviirako amayinja ag’omuwendo agasingawo amanene, ag’omutindo ogwa waggulu-ag’omutindo ogwa waggulu agakoleddwa ku katale.
Mu 1940, kkampuni ya Chatham yakola bulungi okukola emerald nga ekozesa enkola ya flux.
Mu 1941, kkampuni eno yali emaze okukola obuwundo obuyitibwa emerald crystals obuzitowa karat 15, wadde nga bwali bwa mutindo gwa wansi.
Nga mu mwaka gwa 1950, munnasayansi Omuyitale Spezia yayiiya enkola ya hydrothermal ey’okusengejja kwa quartz, ekyaviirako okukola obutafaali obukoleddwa mu by’obusuubuzi.
Mu 1957, kkampuni ya Bell Laboratories mu Amerika yalangirira nti ekoleddwa bulungi mu kusengejja ebibala bya rubies nga bakozesa enkola ya hydrothermal.
Mu 1955, kkampuni ya General Electric mu Amerika yalangirira nti yakola bulungi okukola dayimanda mu makolero.
Nga wayise emyaka 15, mu 1970, dayimanda ow’omutindo gwa gem-yakolebwa. Puleesa eya waggulu-nga egattibwa ne tekinologiya wa chemical vapor deposition (CVD) kati esobola okukola dayimanda ow’omutindo gw’amajolobero-azitowa karati ezisukka mu 11.
Mu 1972, Pierre Gilson okuva mu Bufalansa yasooka kukola bulungi tekinologiya ow’okukola opal.
Mu 1974, opal enjeru eya synthetic yatundibwa ku katale. Mu 1976, munnasayansi ow’omu Soviet Dukoka yalongoosa enkola y’okusengejja amayinja ag’amazzi ag’ebbugumu mu kukola amayinja aga rubi, n’asobozesa okukola amayinja aga rubi ag’obutonde agafaanagana ennyo n’amayinja aga rubi ag’obutonde. Mu kyasa 21, tekinologiya ow’okusengejja amayinja ag’omuwendo yeeyongera okukulaakulana, ekisobozesa okukola kumpi ekika kyonna eky’amayinja ag’omuwendo.
