Question 1

Are Zambian emeralds as good as Colombian emeralds?

Accepted Answer

They are different rather than simply better or worse. Zambian emeralds tend to be cooler and bluer, often with good clarity, while Colombian stones are prized for a warm green and glow. Fine Zambian emeralds make excellent jewellery stones, and many buyers prefer their colour. Colombian origin usually commands a premium at comparable quality, but the individual stone matters most.

Question 2

Are Zambian emeralds treated?

Accepted Answer

Most are clarity enhanced with oil or resin, as with emeralds from other sources, although Zambian stones are often cleaner and may need less. A laboratory report will state whether a filler is present and its extent. Heating is not a standard treatment for emerald. Zambian emeralds with no clarity enhancement exist and command a premium.

Question 3

Why do some Zambian emeralds look dark?

Accepted Answer

Zambian emeralds contain more iron than Colombian stones, which adds a bluish component and can deepen the tone. In large or deeply cut stones this can make the colour look dark, especially in dim lighting. A well-proportioned cut helps. Buyers should view stones in both daylight and indoor light, and ask for video, before committing to large sizes.

Question 4

Where are Zambian emeralds mined?

Accepted Answer

Most come from the Kafubu area of the Copperbelt Province in north-central Zambia. Emeralds were recorded there in the early twentieth century, and commercial mining developed from the 1970s. Today production comes from large mechanised operations as well as smaller mines. As with any origin, a laboratory report is the way to confirm that a stone is Zambian.

Zambian Emeralds