Quality Samples
At Dia-Co, we take immense pride in our craftsmanship and commitment to quality. Every custom jewelry piece we create is Made in the USA and undergoes meticulous manufacturing, stone setting, and finishing processes to deliver exceptional results you can see and feel. This page showcases the precision, care, and expert techniques that set our work apart.
High polish inside/under center stone
Raw Casting
All jewelry is mirror-polished before and after setting for maximum shine. High-polishing is applied inside and under the center stone, with lasers used to reach areas inaccessible to traditional tools.
Make sure polished galleries are never wavy
Pre-Polish
Skilled artisans carefully polish galleries to ensure smooth, even surfaces with no waviness, refining every detail for a perfect finish.
Stone Setting – Precision & Craftsmanship
The quality of stone setting defines the durability, security, and brilliance of fine jewelry. Our expert craftsmanship ensures each stone is precisely placed and secured using various setting techniques:
Bezel Setting
A sleek metal rim fully or partially encircles the stone, offering maximum security and a modern, smooth look.
.png)
Channel Setting
Stones are set between two parallel metal walls, creating a seamless row with no prongs for a clean, elegant finish.​
.png)
U Pave Setting
Small prongs hold the stones in place, forming a delicate “U” shape beneath each stone to maximize brilliance and light reflection.
.png)
Wall Pave Setting
Tiny beads of metal secure the stones along a defined edge, creating a continuous sparkle while maintaining a structured, refined appearance.
Precision in Manufacturing
Our expert artisans use advanced techniques to bring each design to life with accuracy and durability. Every metal component is shaped with care, ensuring that the final piece is structurally sound and aesthetically flawless.
Excellence in Setting
The setting process is crucial to the beauty and longevity of your jewelry. Our skilled setters meticulously place each stone to achieve perfect alignment, security, and brilliance. Pay attention to the evenness of prongs, the precision of channel settings, and the seamless integration of stones—these are hallmarks of high-quality craftsmanship.
Finishing & Polishing
A flawless finish is what sets luxury jewelry apart. Our thorough cleaning and polishing process removes imperfections, enhances shine, and ensures a smooth, refined surface. This final touch gives your jewelry its striking, high-end appearance.
What to Look for in Our Work
Quality craftsmanship is defined by secure stone settings, smooth edges, and seamless metalwork. A brilliant, high-polish finish ensures durability, comfort, and a flawless look in every piece.
Secure & Even Settings
Stones are firmly in place with consistent alignment.
Smooth & Polished Edges
No rough surfaces, ensuring comfortable wear.
Brilliant Shine
A high-quality polish that enhances the metal’s natural luster.
MADE IN USA
.png)
Every Dia-Co piece is handcrafted with care and proudly Made in the USA.