Emerald

Wholesale emerald — buying guide for the trade

Green beryl. The defining gem of Colombia, with growing modern supply from Zambia, Brazil and Ethiopia. Clarity treatments are the norm — read the lab report carefully.

Key properties

Mineral

Beryl (Be₃Al₂Si₆O₁₈)

Hardness

7.5–8 (Mohs)

Key origins

Colombia (Muzo, Chivor), Zambia, Brazil, Ethiopia, Afghanistan

Typical treatments

Cedarwood oil (minor/moderate/significant), resin, polymer (rare/never)

What to look for when buying wholesale

• Every credible emerald report grades clarity treatment: None > Insignificant > Minor > Moderate > Significant.
• Avoid polymer- or resin-filled emeralds for fine jewellery — they age badly.
• Colombian commands a premium; Zambian is often more saturated but priced lower.
• Open clarity is part of an emerald's character; perfectly clean is suspicious.

Certification guidance

SSEF, Gübelin, GIA, AGL — all give clarity-enhancement grades. Insist on one for any stone above ~USD 2,000.

Treatment disclosure

Oil is universal and accepted. Resin and polymer must be disclosed; significant treatment must be priced accordingly.

Typical wholesale price tiers

Prices are indicative wholesale-to-trade ranges. Actual offers depend on origin, certification and supply at the time of enquiry.