Za a iya kwatanta duwatsu masu daraja a duniya a matsayin ɗaya daga cikin ayyukan yanayi, masu wuya da daraja, masu kyau da ban mamaki.Ga kowa da kowa, mafi ƙarancin lu'u-lu'u shine lu'u-lu'u "har abada".A gaskiya ma, akwai wasu duwatsu masu daraja a duniya waɗanda ba su da yawa kuma sun fi lu'u-lu'u daraja.
Suna warwatse a ko'ina cikin duniya.Ba wai kawai ba su da yawa a cikin adadi, kuma suna da tsada sosai kuma suna da wuyar samun nawa, amma launi na musamman da kyan gani na su yana burge masoyan gem a duniya.Bari mu bi Xiaonan don sanin waɗannan ƙananan abubuwa masu daraja da daraja.

Jajayen lu'u-lu'u
Lu'u-lu'u na yau da kullun duk sun yi yawa ga waɗannan duwatsu masu daraja.Amma kuma akwai wata taska da ba kasafai ba a tsakanin lu'u-lu'u, wato jajayen lu'u-lu'u.Jajayen lu'u-lu'u sune mafi ƙarancin lu'ulu'u masu launi.MINE AEGYLE a Ostiraliya yana samar da ɗan ƙaramin lu'u-lu'u ja.Moussaieff Red shine jajayen lu'u-lu'u mafi girma a duniya.Wani manomi ne ya gano shi a Brazil a shekara ta 1960. Yana da siffar triangular kuma yana da nauyin carats 5.11.

Duk da cewa nauyin wannan lu'u-lu'u ba shi da kima idan aka kwatanta da sauran lu'u-lu'u, shi ne babban lu'u-lu'u na daya a tsakanin jajayen lu'u-lu'u, kuma darajarsa ya zarce nauyinsa.Jajayen lu'u-lu'u mai maki 95 da aka sayar a Hong Kong na Christie a watan Afrilun 1987 a New York an sayar da shi kan dala 880,000, ko $920,000 a kowace carat.Don lu'u-lu'u na kasa da carat guda ɗaya don samun irin wannan farashi mai ban mamaki, ana iya cewa yana da lambar da ta cancanta.

Benitoite
Lokacin da aka gano mazugi mai shuɗi a cikin 1906, an taɓa kuskuren sapphire.A halin yanzu, tushen kawai tushen mazugi mai shuɗi shine gundumar St. Bailey, California, Amurka.Ko da yake an sami samfuran mazugi mai shuɗi a Arkansas da Japan, yana da wuya a yanke su zuwa duwatsu masu daraja.

Azurite shudi ne ko launi mara launi, kuma an rubuta shi azaman dutse mai daraja mai ruwan hoda;duk da haka, mafi kyawun fasalin Azurite shine hasken shuɗi mai ban sha'awa lokacin da aka fallasa shi zuwa hasken ultraviolet.Azurite yana da babban maƙasudin refraction, matsakaicin birefringence da tarwatsewa mai ƙarfi, kuma yanke azurite yana haskakawa fiye da lu'u-lu'u.
Azurite shine mafi yawan waɗannan duwatsu masu daraja, amma har yanzu yana da wuya fiye da yawancin.