Est. — Springfield, MO
Timeless Diamonds.
Five Names.
One Purpose.
The Signature Collection — five rings designed with intention, crafted to heirloom standards, and built to last a lifetime.
Signature No. I — Now Available
The Rachael
Refined. Understated. Unmistakably Luxurious.
The Signature Collection is named after the five women who inspire everything we do — my wife Rachael, and our daughters Henley, Harper, Haddie, and Hollis. Each ring was designed with her in mind.
The Rachael features cathedral shoulders, a hidden halo, and a French pavé band — quiet elegance that never asks for attention, yet never goes unnoticed.
$3,500
The Signature Collection
Five Designs. One Purpose.
Signature Rings
Five timeless designs — each named, each intentional. Order on demand in your size and preferred metal.
Browse CollectionBespoke Design
A fully bespoke engagement ring built around your vision, your stone, and your story. Guided from concept to creation.
Start DesigningDiamond Sourcing
Our concierge service locates exceptional lab-grown stones directly from global manufacturers — extraordinary quality, transparent pricing.
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About Randolph & Co.
Thoughtfully Sourced.
Personally Delivered.
Randolph & Co. sources exceptional lab-grown diamonds directly from global manufacturers. Every Signature ring is designed with intention and crafted to heirloom standards. We work personally with every client — from first conversation to final delivery.
Ready to Begin?
Every extraordinary ring
starts with a conversation.
Whether you’re ordering a Signature ring, pursuing a bespoke design, or searching for the perfect diamond — we’re here to help.