Global Gemstone Sourcing
Nathan personally travels the world — visiting mines, building relationships with cutters, and attending the major jewellery fairs in Hong Kong, Basel, Tucson, and Las Vegas — to hand-select only the finest specimens for our most discerning clients. No middlemen. No compromises.
Where Nathan Goes
Around the Globe for Your Perfect Stone
Nathan flies to every major gemstone hub and jewellery fair on the planet, leveraging 25+ years of personal relationships with miners, cutters, and dealers to secure stones most jewellers never see.
Hong Kong
Hong Kong Jewellery & Gem Fair
The world's largest gemstone marketplace — twice yearly
Basel & Geneva
Baselworld & SIHH
Europe's premier fine jewellery and horology events
Las Vegas
JCK Las Vegas
North America's flagship jewellery industry event
Tucson
Tucson Gem & Mineral Show
The ultimate destination for rare collector-grade stones
Direct Mine Access Worldwide
Mine-Direct Network
From the Earth to Your Finger
Nathan doesn't wait for stones to appear in a dealer's case. He travels directly to mining regions — from the emerald fields of Colombia and the sapphire pits of Sri Lanka to the tourmaline mines of Brazil and the pearl farms of Australia's north — building decades-long relationships that give our clients first access to extraordinary stones before they ever reach the open market.
Direct partnerships with miners in 12+ countries
Attending 6–8 major international fairs annually
Exclusive network of master gem cutters worldwide
Priority selection on new finds before public sale
Precious Stones
Our Gemstone Collection
Colombian Emeralds
The world's finest emeralds, prized for their exceptional color saturation and natural inclusions known as 'jardin'. Our Colombian emeralds are sourced directly from the Muzo and Chivor mines.
Ceylon & Kashmir Sapphires
From the legendary mines of Ceylon and the now-depleted Kashmir deposits, these sapphires display the coveted cornflower and royal blue hues that have captivated royalty for centuries.
Burmese Rubies
The legendary 'pigeon blood' rubies from Myanmar's Mogok Valley represent the pinnacle of ruby quality. Their fluorescent glow and pure red color are unmatched worldwide.
Argyle Pink Diamonds
From the now-closed Argyle mine in Western Australia, these extraordinarily rare pink diamonds are among the most valuable gemstones on Earth. Each stone comes with Argyle certification.
South Sea Pearls
The largest and most lustrous cultured pearls in the world. Australian South Sea pearls offer exceptional white and silver tones, while Golden South Sea pearls from the Philippines display warm, rich hues.
Paraíba Tourmalines
Discovered in 1989 in Brazil's Paraíba state, these copper-bearing tourmalines display an electric neon blue-green color found nowhere else on Earth. Among the world's rarest gemstones.
Extended Collection
Rare & Collector Stones
Beyond our featured collection, we source an extensive range of rare and collector-grade gemstones
Alexandrite
Russia, Brazil
Tanzanite
Tanzania
Spinel
Myanmar, Sri Lanka
Tsavorite Garnet
Kenya, Tanzania
Padparadscha Sapphire
Sri Lanka
Demantoid Garnet
Russia, Namibia
Imperial Topaz
Brazil
Natural Blue Zircon
Cambodia
Mandarin Garnet
Namibia
Chrome Tourmaline
Tanzania
Cat's Eye Chrysoberyl
Sri Lanka
Star Ruby & Sapphire
Various
Why Choose Us
The Nathan Advantage
- Direct sourcing from trusted mines worldwide
- Complete certification and documentation
- Conflict-free guarantee on all stones
- GIA, GRS, and Gübelin certified stones
- Competitive pricing through direct relationships
- Access to rare and collector-grade specimens
- Expert gemological consultation
- Custom stone selection for bespoke pieces
Our Services
The World's Finest at Your Fingertips
Access to exceptional gemstones from our global network of trusted suppliers.
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