In 2009 the two companies mined half of the world's diamonds, measured by carat volume.
2009年，这两家公司生产的钻石按卡拉数计算占全球一半。
By 2015 these countries could be buying as many diamonds as America, which currently accounts for two-fifths of global demand.
到2015年，这些国家的购买量可能会与美国并驾齐驱，目前美国的钻石消费量占全球需求量的五分之二。
At Blue Nile, a three-stone white gold ring set with an oval-cut sapphire (just shy of one carat, good color, no visible flaws) and flanked by two 0.15-carat diamonds goes for $1,575.
在蓝尼罗，三层白金戒指加一颗椭圆形蓝宝石（不到一克拉，色泽好，无明显缺陷）和侧面得两颗0.15克拉钻石要价1575美元。
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