Our Process

Every piece of Catherina & Co. jewelry is born from a journey of passion, precision, and artistry. From the earth to your hands — here is how we bring your vision to life.

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Step One

Stone Selection

Our master gemologists travel to the world's finest sources — Sri Lankan sapphire mines, Colombian emerald deposits, and Burmese ruby fields — to hand-select each stone. Every gemstone is evaluated for color saturation, clarity, cut precision, and that indescribable inner fire.

Only 1 in 1,000 stones meets our selection criteria
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Step Two

Certification & Grading

Each selected gemstone undergoes rigorous independent certification. We document every characteristic — from exact carat weight to microscopic inclusions — ensuring complete transparency. Your stone's certificate is its passport, guaranteeing authenticity for generations.

Every stone comes with a detailed certificate of authenticity
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Step Three

Design & Sketching

Our designers create multiple hand-drawn sketches exploring different angles, proportions, and settings. We consider how light will dance through the stone, how the metal will embrace it, and how the piece will feel against your skin. Each concept is refined until it perfectly honors the stone's character.

Typically 8–12 design variations are explored for each piece
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r: 8.2mm h: 6.1mm

Step Four

3D Modeling & Prototyping

The chosen design is translated into a precise 3D digital model where every millimeter is calculated. We then create a wax prototype — a physical preview of the final piece — allowing you to see and feel the design before any precious metal is cast.

Sub-millimeter precision ensures a flawless final product
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Step Five

Casting & Metalwork

Master craftsmen cast the piece in your chosen precious metal — whether 18K gold, platinum, or rose gold — using the lost-wax casting method perfected over centuries. The raw casting is then meticulously filed, shaped, and refined by hand to its intended finish.

Each piece requires 15–40 hours of skilled handwork
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Step Six

Stone Setting

The most delicate stage — our stone setters secure each gemstone by hand using techniques passed down through generations. Whether it's a classic prong setting, a secure bezel, or intricate pavé, every stone is placed with absolute precision and locked securely in place.

A single pavé ring can require setting over 100 individual stones
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Prong integrity Surface finish Metal purity Stone alignment

Step Seven

Quality Inspection

Before any piece leaves our atelier, it undergoes a comprehensive 27-point quality inspection. We examine every prong, every surface, every angle under 10x magnification. We test clasps, verify metal purity, and ensure the piece meets the exacting standards that define Catherina & Co.

Zero tolerance — if a single point fails, we start again
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Step Eight

Presentation & Delivery

Your finished piece is carefully placed in our signature packaging — a hand-crafted box that reflects the same attention to detail as the jewelry within. Accompanied by its certificate, care guide, and our lifetime warranty, your creation is ready to begin its story with you.

Every piece is insured and delivered with white-glove care

Begin Your Journey

Whether you're seeking the perfect engagement ring, a bespoke necklace, or a rare gemstone — we're here to guide you through every step.

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