From the shop
A focused selection from the shop
Ready-to-ship and made-to-order pieces.
Designed and built in-house.
Stone sourcing, design, setting, and finishing stay close to the bench from start to finish.
Why Fifth Alloy
A bespoke approach shaped by proportion, engineering, and long-term wear.
You work directly with the studio from concept through finish.
Proportion before ornament
Shape, scale, and geometry are resolved first so the piece feels inevitable rather than overworked.
Direct collaboration
You work with the people developing the piece—not a relay between sales, CAD, and production.
Built in-house
Design decisions stay close to sourcing, setting, and finishing, which keeps quality consistent.
Made for long wear
Structure, comfort, and durability are considered from the beginning—not corrected at the end.
In Wear
On the Body
Selected Work
Selected Work
A selection of recent commissions from the studio.
Explore the broader portfolio and begin a custom project on the custom designs page.
Supporting paths
Other ways to begin
For engagement ring-specific projects or heirloom resets, you can begin here.