Rubies & sapphires, from Pailin, Cambodia Ruby A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum...
Ruby & sapphires, ຈາກ Pailin, Cambodia Ruby A ruby   ເປັນສີບົວເຖິງແກ້ວປະເສີດສີແດງ, ຫລາກຫລາຍແຮ່ທາດ ...