Exceptional
gemstones.
Real
Gem stone experts.
Knowledge.
Integrity.
A more personal
approach.
Founder of Hardin & Co. Stones
Private Gemstone Advisor

A practiced eye.
A personal service.

Rare stones sourced directly for collectors and trade professionals.

Welcome

A colorful selection of natural gemstones
Personally sourced gemstones

Natural beauty. Remarkable character.

Fine and rare stones selected through trusted global relationships.

Explore Gemstones
Fine aquamarine and blue topaz gemstones
Private collector guidance

Find the right stone for your story.

Direct, discreet guidance for collectors and trade professionals.

Rare alexandrite gemstones
Distinctive collector pieces

Exceptional stones, selected personally.

Experience, integrity, and a practiced eye behind every recommendation.

Meet the Founder
Portrait of the founder
The person behind every stone

Meet the Founder

Born in Berlin and based in Boston, the founder has spent more than 12 years in the international gemstone market. Through trusted relationships across Asia, Europe, the Americas, and Australia, he sources sapphires, emeralds, rubies, and distinctive collector-grade stones for private clients and trade professionals.

12+Years of experience
4Global sourcing regions
1:1Direct founder access

“Every stone is selected by me, and every client works directly with me.”

◆ Personally Selected● Confidential Service◆ Trusted Global Network

How I Can Help

Natural gemstones
Private sourcing

Source a Rare Stone

Access exceptional gemstones through a trusted international network.

Jewelry design
Personal guidance

Build a Collection

Curate a meaningful collection with expert, personal guidance.

Blue sapphires
Professional support

Private Trade Support

Discreet sourcing and market insight for jewelry and trade professionals.

Collector gemstone
Collector pieces

Distinctive Gemstones

Explore stones selected for character, quality, and enduring value.

Explore gemstones →

From the Journal

Caring for Your Jewelry

Practical guidance for preserving treasured pieces.

Read article →

Identifying Quality in Gemstones

What an experienced eye looks for in every stone.

Read article →
Private consultations

Tell me what you are looking for.

Share the stone, collection, or professional support you need. Every enquiry is handled personally and discreetly.