Yana da wuya a yi tunanin cewa ma'adinai tare da suna kamar na yau da kullun kamar yadda corundum ke haifar da lu'u-lu'u masu kyau kamar jan yaƙutu da shuɗin yaƙutu, ko ma cewa waɗannan duwatsu biyu, masu bambancin launi da na sufi, ainihin dangin ma'adinai ɗaya ne.
Sa'a kayi idan naka dutse shine saffir (Satumba) ko ruby (Yuli). Waɗannan suna daga cikin launuka mafiya arziki na duk duwatsu masu daraja tare da soyayya da tarihi kamar yadda suke. Yaƙutu ya fi tsaran gaske safiiri, kuma ana kiran jan corundum ne kawai yaƙutu. Duk wani launi shine saffir. Lokacin daidaitawa launuka masu launi, yawa da launin launi kala ne na kimantawa, kuma shine wadatattun, launuka masu launi waɗanda aka fi daraja. A cikin yaƙũtu, mafi kyaun bambancin launuka shine ake kira jinin kurciya. Babban darajar daraja yaƙutu na iya zama mafi daraja fiye da kamannin su lu'u lu'u kuma tabbas suna da yawa. Akwai wadataccen dangi karami, (1-3 carat,) shuɗi sapphires idan aka kwatanta da karancin koda ƙaramin lu'ulu'u mai daraja mai daraja, yin har ma da waɗannan ƙananan duwatsu masu daraja ƙwarai.
duwatsu na asalin Burmani galibi yana ba da umarnin mafi girman farashi. Mafi yawan yaƙũtu "yankan ƙasa ne" a cikin ƙasar asali. Babban darajar ruby m yana da sarrafawa sosai kuma ba safai yake yankewa zuwa masu yanka al'ada ba. Lokaci-lokaci, irin waɗannan duwatsu na ƙasa ana yin suransu daidai gwargwado, kodayake asarar nauyi da diamita. Yankan al'ada da duwatsu na al'ada yawanci sunfi kowace carat.
Sapphires wanzu a cikin dukkan inuwar shuɗu daga zurfin shuɗin sama na maraice zuwa haske mai haske da zurfin shuɗi na sararin samaniya mai kyan gani. Hakanan Sapphires shima yana da launuka da yawa, ba wai kawai a cikin shuɗi mai shuɗi mai shuɗi na nesa ba, amma har ila yau yana nuna wasan wuta mai haske na launuka na faɗuwar rana - rawaya, ruwan hoda, orange da purple. Don haka sapphires duwatsu ne na gaske da gaske na samaniya, kodayake ana samun su a cikin ƙasa mai wuya ta abin da muke kira "shuɗin ƙasa".