The value of emeralds can vary significantly depending on their origin, with Colombian emeralds generally being the most expensive due to their warmer and more intense pure green color, as well as their greater clarity and fewer inclusions[1][2][3]. Colombian emeralds can go for as much as 50% more than emeralds from other locations like Brazil or Zambia[1]. The price of Colombian emeralds can range up to $100,000 per carat depending on the color and level of clarity[2].
Brazilian emeralds are typically the second most expensive, followed by Zambian emeralds[4]. Brazilian emeralds are known for their slightly yellowish-green color, while Zambian emeralds have a bluish-green hue due to higher iron concentrations[5][6]. Zambian emeralds are also stronger, with a Mohs scale rating of 7.5-8, compared to Colombian emeralds with a rating of 7-7.5[6]. Good quality Zambian emeralds weighing 1 to 3 carats can cost approximately $5,000 per carat[6].
It is important to note that the origin should not be the sole determinant of an emerald’s value, as factors such as color, clarity, cut, and carat weight also play a significant role in determining the price[7]. Additionally, it is not always possible to accurately identify an emerald’s origin based on appearance alone, as there are many exceptions and even lab gemologists can struggle to identify gem origin with advanced testing[1].
Citations:
[1] https://emeralds.com/education/value-of-colombian-emeralds/
[2] https://biron-gems.com/colombian-emerald-vs-zambian-emerald/
[3] https://diamondbuzz.blog/exploring-emerald-colours-by-origin/
[4] https://www.multicolour.com/emerald/emerald-value.html
[5] https://www.diamondere.com/blog/emerald-qualities-country-origin/
[6] https://www.estatediamondjewelry.com/zambian-emeralds/
[7] https://www.astteria.com/blog/how-much-are-emeralds-per-carat/
