aleksandrit, ham tanilgan "allex", Chrysoberyl - bu xrom miqdori tufayli rangsizlanish ta'sir qiladigan turli xil; if it has both a discoloration effect and a cat's eye effect, u chaqiriladi "Aleksandrit Opal", bu juda kam uchraydigan va juda qimmatbaho nav, og'irligi 5ct, Karat uchun 5000 AQSh dollaridan ortiq. [...]
