Knowledge Centre

Trade Insights

Market intelligence, certification guides, and sourcing expertise — exclusively for international jewellery trade professionals.

Lab-Grown Diamond Market Trends: What Trade Buyers Need to Know in 2026

Lab-grown diamond supply has increased over 300% in three years. We break down what this means for wholesale pricing, consumer perception, and your inventory strategy.

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Certification

5 min read·28 May 2026

GIA vs IGI: A Trade Buyer's Guide to Diamond Certification

Both GIA and IGI certificates are accepted worldwide, but there are meaningful differences that affect trade pricing and consumer trust. Here's what every dealer should know.

Ceylon Sapphires: Sourcing, Grading, and Market Outlook for Trade Buyers

Gemstone Sourcing

7 min read·12 May 2026

Ceylon Sapphires: Sourcing, Grading, and Market Outlook for Trade Buyers

Ceylon (Sri Lankan) sapphires continue to command the highest premiums in the coloured gemstone market. We explore what drives the premium, how origin is verified, and current supply conditions.

Memo vs Outright Purchase: Which Trade Structure Works Best for Your Business?

Trade Operations

4 min read·30 April 2026

Memo vs Outright Purchase: Which Trade Structure Works Best for Your Business?

Understanding the difference between memo and outright purchase arrangements is fundamental to managing your diamond and gemstone inventory efficiently. Here's a practical comparison.