Opal rangli marvaridlar orasida eng noyob rangli gem. Shu sababli, Opalning rang-barang fenomenini oshirish uchun, rangli hodisani yaxshiroq yaxshiroq yoki opal yoriqlarini to'ldiring, Bozor opalni optimallashtiradi, Asosiy usullar quyidagicha : Shakarni davolash: Put the non-play-of-color opal into saturated sugar […]
