Rare Finds.
Expertly Vetted.
Ethically Sold.
Discover curated estate jewelry and rare gemstones — sourced with integrity, backed by expertise.
Rare Finds.
Expertly Vetted.
Ethically Sold.
Discover curated estate jewelry and rare gemstones — sourced with integrity, backed by expertise.
A Thoughtful Approach to Gem & Jewelry Sales
STL Gems offers select pieces of estate jewelry and loose gemstones through a transparent, client-centered sales process. We work with both individual clients and B2B partners — ensuring each stone or piece is properly evaluated, ethically sourced, and presented with the insight it deserves. Whether you’re seeking a unique heirloom or exceptional materials for custom design, STL Gems offers rare access and trusted guidance.
A Thoughtful Approach to Gem & Jewelry Sales
STL Gems offers select pieces of estate jewelry and loose gemstones through a transparent, client-centered sales process. We work with both individual clients and B2B partners — ensuring each stone or piece is properly evaluated, ethically sourced, and presented with the insight it deserves. Whether you’re seeking a unique heirloom or exceptional materials for custom design, STL Gems offers rare access and trusted guidance.
Estate Jewelry
- Individuals seeking one-of-a-kind heirlooms
- Collectors looking for meaningful additions
- Clients interested in repurposing legacy pieces
Inventory shown is for reference only. To explore what’s currently available, reach out for personalized assistance.
Loose Gemstones
We curate an evolving inventory of rare, untreated, and distinctive gemstones—sourced for their natural beauty and design potential. These stones are ideal for:
- Jewelers and designers in search of standout materials
- Custom design clients wanting something exceptional
- Collectors looking for investment-grade gems
Custom Design & Private Client Support
Clients purchasing loose gemstones can also access design support and fabrication services through our trusted jeweler network. Custom projects are managed through our secure Private Client Portal, allowing for:
- Real-time project updates
- CAD renderings and gemstone selection
- Messaging, file sharing, and service transparency
Our Difference
At STL Gems, we are independent. We don’t push inventory or upsell—we guide. Every sale is backed by gemological expertise and ethical transparency. Whether you’re buying or selling, we help you make informed, confident decisions.
Our Difference
At STL Gems, we are independent. We don’t push inventory or upsell—we guide. Every sale is backed by gemological expertise and ethical transparency. Whether you’re buying or selling, we help you make informed, confident decisions.
Selling through stl gems
We don’t purchase directly from our clients because doing so would create a conflict of interest. Instead, we act as your advocate. Whether you’re looking to sell estate jewelry, rare gemstones, or high-value pieces, we offer expert consignment, private brokering, and liquidation services aligned with your goals, not ours.
Our role is to guide you through the process: advising on which items are worth appraising, which may be better suited for liquidation, and which hold potential for redesign. Whatever the path, our focus is on transparency, strategy, and helping you make informed decisions with confidence.
Selling through
stl gems
We don’t purchase directly from our clients because doing so would create a conflict of interest. Instead, we act as your advocate. Whether you’re looking to sell estate jewelry, rare gemstones, or high-value pieces, we offer expert consignment, private brokering, and liquidation services aligned with your goals, not ours.
Our role is to guide you through the process: advising on which items are worth appraising, which may be better suited for liquidation, and which hold potential for redesign. Whatever the path, our focus is on transparency, strategy, and helping you make informed decisions with confidence.
consignment services
- Professional evaluation and documentation
- Photography, listing, and marketing through our private network
- Transparent terms, secure storage, and seller protection
private brokering
- Discreet sales of high-value items
- Access to vetted collectors and industry buyers
- Expert negotiation and market guidance
Liquidation & Refining Services
- Transparent calculation of value
- Competitive market pricing
- Our offers are valid until market conditions change, and we encourage you to use them as a benchmark. While it’s rare, you might find a better offer, and we want you to feel empowered to explore that.