Precision Ring Resizing — Vintage 18K Yellow Gold Ring with Natural Diamond

Working with vintage jewelry requires more than skill — it requires absolute confidence in every movement.

There is no room for error, no second attempt, and no place for haste.

This video shows the process of resizing a vintage 18K yellow gold ring set with a natural diamond of approximately 0.5 carat.

The work begins with precise measurement and calculation — the jeweler determines exactly how much metal must be removed to achieve the perfect size in a single operation, without unnecessary gold loss and without repeated intervention.

Using a jeweler’s caliper and traditional tools, the section is calculated down to fractions of a millimeter.

Every movement is deliberate, every tool chosen for its purpose — this is jewelry work based on experience, not templates.

Stone Safety & Soldering Technique

Special attention is given to the soldering process.

There are two safest approaches when working with rings set with stones:

the first is removing the stone and resetting it after the work is completed;

the second is soldering in a way that the diamond remains submerged in water, while the soldering area stays outside.

We use this method.

The stone is fully isolated from heat exposure, eliminating any risk.

Yes, natural diamonds can withstand extreme conditions — but in fine jewelry, responsibility matters more than boldness, especially when working with vintage and meaningful pieces.

Restoration & Final Result

After soldering, the ring undergoes a full restoration cycle:

internal cleaning, shape correction, size verification, exterior finishing, polishing, and ultrasonic cleaning.

In the final result, the ring looks as if it has never been touched — only the perfect fit and renewed surface reveal the work done.

Our Approach

At Marchioness Jewelry Boutique, an independent jewelry atelier in Toronto, we approach Jewelry Repair Toronto with the same attention as Luxury Handmade Jewelry and Custom Jewelry Toronto.

This is the result of years of experience, proprietary techniques, and a clear understanding of how to preserve beauty, value, and character without compromise.

This piece was completed in the format of Custom Jewelry Toronto, where flawless Diamond & Gemstone Setting is the foundation.

🔗 For custom jewelry projects or professional jewelry repair, contact us to discuss your piece.

Only we can do what we do.