WorldJuly 13, 2026
carat
/ˈkær.ət/
Definition
A unit of weight used for measuring precious stones, such as emeralds, equal to 200 milligrams.
Etymology
Derived from the Greek word 'keration', meaning 'carob bean', as these small, uniform seeds were historically used to measure the weight of gemstones.
In the news
The term is used to quantify the volume of emeralds from Panjshir that were recently sold at an official auction, highlighting the scale of the trade.
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