About us

The Gem Bureau is a professional gemstone trading desk built on knowledge, discipline, and respect for the craft of gemology. Operating under The Jangbari Jewellery Co. LLC, TGB exists at the intersection of commerce and connoisseurship. Sourcing, evaluating and trading exceptional gemstones with transparency and technical rigor.

Our approach is simple: understand the stone before the sale. Every gemstone is assessed through a structured framework considering species, variety, origin, treatment status, color, clarity and market demand. This allows us to trade with precision while providing our clients with clear, factual information about the stones they acquire.

TGB operates both as a commercial trading desk and a knowledge bureau. Alongside sourcing and selling gemstones, we provide insights designed to help collectors, jewellers and traders navigate the complex world of colored stones.

Our network spans the key gemstone markets, enabling access to a diverse pipeline of materials, from collector-grade stones to trade parcels.

We believe gemstones should be traded with clarity, discipline, and attention to origin. The Gem Bureau was created to uphold those principles.

The Gem Bureau
A trading desk built on knowledge.