在炎热的六月，国际彩色宝石矿业巨头Gemfields的推出了其有关彩色宝石系列短片的第三集。这部短片，将带领大家了解如何挑选红宝石和祖母绿。（June has arrived, which means it is time for the third instalment in Gemfields’ new short-film series devoted to coloured gemstones. This one is an imaginatively devised Buyer’s Guide, to walk consumers through the exciting process of purchasing a precious ruby or emerald.）视频极具戏剧性的配乐和旁白，在不到两分钟的时间里，大家将经历宝石在地下深处矿藏中形成的过程。视频通过油与漆混合物的质感，展现了宝石形成的自然过程。（Narrated and set to dramatic music, the film lasts less than two minutes. In that time, the viewer is taken on a journey through the formation of gemstones from mineral deposits deep beneath the earth, with a mixture of paint and oil poured to render an abstract, dramatic representation of coloured gemstones, ‘liquid art’ that illustrates how they are formed at an elemental level.）
然后，视频介绍了采购彩色宝石需要关注的6C，比钻石的4C多了两项指标。6C分别为：特征、颜色、透明度、切割、重量和鉴定证明。特征是由宝石独特的内含物所定义的，宝石晶体中散布的微小瑕疵赋予了每颗宝石特有的“个性”。对于采购者而言，“每个宝石内的故事”都是最重要的考虑因素。（The character of a gemstone is defined by its unique inclusions – the tiny flaws entombed in its crystals, which give it a personality all its own; this “story inside each gemstone” is perhaps the most important consideration for buyers.）
宝石的颜色和透明度根据色相、色调和饱和度而变化，很大程度上受到宝石原产地的影响。
（Colour and clarity vary according to hue, tone and saturation – and these are influenced largely by the gemstone’s place of origin.）
娴熟的工艺，将每颗宝石原石切割成精美的琢形，包括圆形、椭圆形、马眼形、梨形或者八角形等。
（The skilled artistry involved in shaping each gemstone into an exquisite cut – be it round, oval, marquise, pear or octagon – is referenced, too.）
克拉是宝石重量的量度单位，每一颗宝石“都重载着地球的历史”。最后，宝石学专家可以进行宝石鉴定，以确保宝石是否经过任何优化和处理手段。另外，例如区块链和安全的供应链可以保证宝石的可追溯性。
（Carats are the unit of measurement for the weight of a gemstone, each one “heavy with the earth’s history”; and finally, certification can be confirmed by an expert gemmologist, for transparency on any treatments undertaken, traceability measures such as blockchain and peace of mind about the supply chain.）
