Origin & Formation

• Zambian emeralds hail primarily from the Kafubu region in Zambia’s Copperbelt, especially mined at the Kagem, Grizzly, Chantete, and Kamakanga sites.

• These gems formed through the interplay of chromium‐rich metabasite and beryllium-bearing pegmatite under ancient geological processes 500 million to over 1.5 billion years ago.

• Kagem Mine is among the world’s largest emerald operations, supplying roughly 25–30% of global gem-quality emeralds.

Color, Clarity & Durability

• Color: Zambian emeralds typically display a deep, vivid green with a bluish undertone. This distinctive hue comes from chromium and vanadium, along with higher iron content than many other emerald sources.

• Clarity: These stones often have superior clarity—fewer visible inclusions compared to Colombian emeralds—and may showcase unique internal patterns or “jardin” that add character.

• Hardness & Structure: Thanks to their iron-rich composition, Zambian emeralds are slightly harder and more resilient—often falling between 7.5 to 8 on the Mohs scale—making them less brittle and more durable than many counterparts.

Size & Notable Discoveries

• Zambia produces emeralds across all sizes—from modest gems to massive, museum-worthy specimens. Notable finds include the 633‐ct rough crystal (1974), the 539‐ct “Insofu” (2006), over 9,000 cts in Chantete (2010), and the 7,525‐ct “Chipembele” (2021).

• These stones are geologically older and often structurally sound owing to their formation history.

Ethical & Sustainable Mining

• Zambian emerald mining, especially at Gemfields-operated Kagem, emphasizes sustainable practice, community development, and environmental rehabilitation. Post-mining efforts include tree planting and habitat restoration.

Value & Market Appeal

• Zambian emeralds offer a compelling mix of exceptional color and clarity—often at a more accessible price point than those from Colombia.

• Pricing varies widely: smaller, commercial-quality stones may start at a few hundred dollars per carat, while premium examples can reach $5,000–$30,000 per carat, depending on the four Cs (color, clarity, cut, carat).

• Their consistent beauty and authenticity have earned them growing recognition in international markets.

In Summary

Zambian emeralds are prized for:

• Deep, vibrant bluish-green tones

• Superior clarity and resilience

• Large, high-quality stones—some world-famous

• Ethical mining practices

• Strong value proposition in the global gemstone market