The Discerning
Trade Source.
For three generations, Karatrade has operated quietly behind the scenes of the world's most prestigious jewelry houses. We are not a consumer brand; we are the source.
Our deep inventory of GIA-certified natural diamonds, fancy color rarities, and origin-specific gemstones provides unparalleled access for our trade partners.
The Natural Diamond Advantage
Discover expertly sourced natural diamonds selected for brilliance, rarity, and commercial confidence — presented for retailers, designers, and fine jewelry professionals.
Natural Fancy Color Diamonds
Source natural fancy color diamonds with the beauty, rarity, and commercial appeal needed to create exceptional one-of-a-kind jewelry.
Natural Rare Gemstones
Discover emeralds, sapphires, rubys and tanzanites chosen for extraordinary color, natural rarity, and timeless fine jewelry appeal.
From Stone Sourcing to Finished Production
Stone Sourcing
Access to rare and certified gemstones from trusted global suppliers
CAD Development
Precision 3D modeling and design visualization for custom pieces
Custom Jewelry Production
End-to-end manufacturing from concept to finished fine jewelry
Semi-Mount Creation
Expertly crafted settings ready for your choice of center stone
Private Label Support
Build your brand with custom-manufactured jewelry under your label
Retailer Programs
Dedicated support and flexible terms for trade partners