Natural-diamond merchants claim they aren't worried, but DE Beers has made a device that can distinguish between the natural stones and the synthetics and is distributing it to jewelers.
天然钻石商人声称他们并不担心，但是德·比尔斯制造了一种可以区分天然钻石和人造钻石的设备，已经分发给珠宝商。
Natural-diamond merchants claim they aren't worried, but DE Beers has made a device that can distinguish between the natural stones and the synthetics and is distributing it to jewelers.
天然钻石商人声称他们并不担心，但是德·比尔斯制造了一种可以区分天然钻石和人造钻石的设备，已经分发给珠宝商。
应用推荐