A woman with shoulder-length brown hair wearing glasses with tortoise shell frames, smiling, against a plain gray background.

Hannah Corbin

A man sitting at a restaurant table wearing a black hoodie, black beanie, and sunglasses, with a beard and mustache. On the table are three drinks in tall glasses and a white plate. The background shows a brick wall and large windows with reflections.

Patrick Rizer

Founder - Hannah Corbin

Bio

Gem Curator

Growing up, I was always fascinated by things that told a story. Whether it was an antique piece of jewelry, a colorful gemstone, or a hidden treasure waiting to be discovered, I loved the idea that every piece had a history and another chapter still to be written. That passion eventually became 307 Gem Company.

While my professional career has been in Human Resources and business operations, my heart has always been drawn to gemstones, antique jewelry, and the excitement of sourcing beautiful, authentic pieces. I founded 307 Gem Company to create a place where collectors, makers, and gift shoppers can purchase with confidence, knowing every item has been thoughtfully selected with quality and integrity in mind.

Based in Casper, Wyoming, I work alongside my fiancé, Patrick, to build a business centered on trust, education, and exceptional customer service. Every order is personally inspected and packaged with care because I believe shopping for something meaningful should feel just as special as receiving it.

Outside of the business, I’m the proud mother of three incredible children. Spending time with Patrick and our family is what keeps me grounded and reminds me why I started this journey—to build something lasting that my family can be proud of.

Specialty

Gemstones • Antique Jewelry • Customer Experience

  • Curated Gemstones & Jewelry: Carefully sourcing gemstones, beads, antique jewelry, and vintage treasures with an emphasis on quality, authenticity, and timeless beauty.

  • Honest Buying Experience: Providing transparent descriptions, detailed photography, and dependable customer service so every customer can purchase with confidence.

  • Continuous Learning: Expanding my knowledge in gemology, gemstone identification, and antique jewelry to ensure every piece meets the standards I’d expect as a buyer myself.

  • Building Lasting Relationships: Creating meaningful connections with customers, wholesalers, estate sellers, and industry professionals while growing a trusted, family-owned Wyoming business.

Co-Founder - Patrick Rizer

Bio

Director of Technology

With over five years of enterprise IT service desk leadership—currently supporting complex operations in Wyoming’s energy sector— Patrick brings a relentless focus on reliability, systems efficiency, and customer support to 307 Gem Company. As a co-founder, investor, and tech lead based right here in Casper, Wyoming, he works alongside his girlfriend to turn a passion for exceptional gemstones into a seamless online experience.

Behind the scenes, Patrick manages 307 Gem Company’s digital infrastructure, from website development and e-commerce optimization to workspace security and data management. His background in IT service desk management means he views technology through a human lens: ensuring every customer enjoys a secure transaction, a fast and intuitive website, and prompt, reliable support at every step of their journey.

Specialty

Operational Excellence & Tech Leadership

  • E-Commerce & Systems Development: Custom website architecture, performance optimization, and intuitive navigation tailored for gemstone buyers.

  • Service & Support Architecture: Applying 5+ years of IT service management principles to deliver fast, reliable, and transparent customer service.

  • Data Security & Cloud Infrastructure: Managing secure Google Workspace environments, data protection, and secure payment processing to ensure buyer peace of mind.

  • Strategic Growth & Investment: Guiding business technology investments, platform scaling, and operational strategy to support long-term growth.