佳士得拍卖行将展示一枚由珍稀三角蓝钻与白钻搭配的特色双宝石金指环。

The auction house, Christie's will soon be offering a two-stone ring featuring an extremely rare triangular-shaped blue diamond paired with a white diamond on a gold band.

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所有研究主题都会包含一次30题的普通知识问答小测，会问诸如“说出一种珍稀宝石的名字”的问题，参与测验者必须尽快作答。

All of the subjects were then quizzed with 30 simple general knowledge questions, such as 'Name a precious gem', which they had to answer as quickly as they could.

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