n.克拉(钻石或其他宝石的重量单位，等于200毫克)，开(黄金成色单位，纯金为24开)

原形：carat复数：carats

She purchased a stunning diamond engagement ring with a 3-carat center stone.
她买了一枚镶有3克拉大钻石的精美订婚戒指。
The antique necklace is valued at over $50,000 due to its exquisite 18-carat gold and precious gemstones.
这串古董项链因其18克拉的纯金和珍贵宝石，估价超过5万美元。
A 1-carat diamond might seem small, but it still commands a high price in the market.
一颗1克拉的钻石虽然看起来不大，但在市场上依然价格不菲。
The jeweler carefully measured the weight of the diamond, which turned out to be exactly 1.5 carats.
珠宝商仔细测量了钻石的重量，结果正好是1.5克拉。
The gemologist examined the 0.9-carat ruby for clarity and color before determining its quality.
宝石学家检查了那颗0.9克拉的红宝石，评估其透明度和颜色后确定了其品质。
She traded her old earrings for a new pair of 0.7-carat diamonds, feeling satisfied with the upgrade.
她用旧耳环换了一对0.7克拉的新钻，对自己这次升级感到满意。
In jewelry, the term "carat" refers to the weight of gemstones, not their size.
在珠宝界，“克拉”是用来指宝石的重量，而非大小。
The necklace is made of 10-carat gold, which is considered a higher purity grade than 14-carat gold.
这条项链由10克拉黄金制成，比14克拉黄金的纯度更高。
To be considered a "diamond", a stone must weigh at least 0.2 carats, though many prefer larger ones.
一颗石头要想被称为“钻石”，其重量至少要达到0.2克拉，尽管许多人更偏爱较大的钻石。
The jeweler advertised a 2-carat emerald as part of their limited edition collection.
珠宝商在广告中宣传了一颗2克拉的绿宝石，它是他们限量版系列的一部分。