... , other dye color (gold,black ,grey,blue and so on)Pearl Size:2mm---15mm,more larger,more expensivePearl Shape:round ... :good luster,nomal luster ,bad lusterPearl Surface:flewless, little blemish, some blemish,many blemishFinding and clasp material: alloy,sliver,14k,18k goldWe ... certificates that confirm quality of goods,And you can load on Certificate detection official website www.zjzj.net.cn . Then ...