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- Regular price
- $1,950.00
Trio Geometrico Ring
- Regular price
- $1,950.00
Find Your Perfect Fit
A guide to accurate ring sizing and diamond proportions.
1. Ring Size Conversion Chart
We use the standard Australian/UK (Alphabetical) sizing system. Use the table below to find your match based on your diameter or circumference.
| Inside Diameter (mm) | Inside Circumference (mm) | AU / UK Size | US / Canada Size |
|---|---|---|---|
| 14.1 mm | 44.2 mm | F | 3 |
| 14.9 mm | 46.8 mm | H | 4 |
| 15.7 mm | 49.3 mm | J ½ | 5 |
| 16.5 mm | 51.9 mm | L ½ | 6 |
| 17.3 mm | 54.4 mm | N ½ | 7 |
| 18.1 mm | 57.0 mm | P ½ | 8 |
| 18.9 mm | 59.5 mm | R ½ | 9 |
Includes printable ruler and physical sizing circles.
2. Stone Size: mm vs. Carat Weight
Diamond carat weight measures mass, while millimeter (mm) measures physical dimensions. Use this as a visual reference for Round Brilliant cut stones.
| Carat Weight (ct) | Round Diameter (mm) | Style Guide |
|---|---|---|
| 0.25 ct | 4.1 mm | Subtle & Minimalist |
| 0.50 ct | 5.2 mm | The Classic Choice |
| 1.00 ct | 6.5 mm | Timeless Brilliance |
| 1.50 ct | 7.4 mm | Commanding Presence |
| 2.00 ct | 8.1 mm | Luxury Statement |
Professional Measurement Tips
Temperature: Fingers shrink in the cold and swell in the heat. Measure at the end of the day when your hands are warm.
Band Width: Wider bands feel tighter on the finger. If you are choosing a wide eternity band, we recommend ordering one half-size larger.
Between Sizes: If you fall between two sizes, always opt for the larger size to ensure a comfortable fit.
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files/LFJ-1111R-3_248c9309-a064-4b87-98df-4123be806603.webp
Trio Geometrico Ring
- Regular price
- $1,950.00
The Trio Geometrico Ring is a geometric diamond stacking ring handcrafted in our Byron Bay Hinterland atelier. A round brilliant and a baguette diamond paired in a clean asymmetric layout, in your choice of IGI-certified lab-grown or GIA-certified natural F VS diamonds.
Made to order by Australian goldsmiths in 9ct or 18ct yellow, white, or rose gold, as well as platinum. Choose your diamond origin and ring size (5-10) to begin your bespoke piece. Looking at related geometric stackers? See the Aurelia Baguette Pavé Ring or the Pilastro Baguette Ring.
Why the Trio Geometrico Ring
- Round and baguette pairing: 1 round brilliant 1.70mm + 1 baguette 3.00 x 1.50mm diamond. 0.05ct total diamond weight.
- Art Deco geometric silhouette: the baguette and round combination references the architectural lines of 1920s Art Deco jewellery.
- Certified diamonds: IGI-certified lab-grown or GIA-certified natural F VS diamonds.
- Six metal options: 9ct or 18ct yellow, white, or rose gold. Platinum also available.
- Handcrafted in Australia: made to order by atelier goldsmiths in Byron Bay Hinterland. Responsibly sourced gold, aligned with RJC standards.
- Lifetime craftsmanship warranty: covers the workmanship of every Lucano ring for life. Free shipping Australia-wide.
Specs and details
- Diamonds: 1 x round brilliant 1.70mm + 1 x baguette 3.00 x 1.50mm, F VS
- Total diamond weight: 0.05ct
- Setting: geometric pairing in solid gold
- Certification: IGI (lab) or GIA (natural, 0.30ct+)
- Metal options: 9ct/18ct yellow, white, rose gold, or platinum
- Ring sizes: 5 to 10
- Lead time: hand-made to order, 4 to 6 weeks
- Origin: Byron Bay Hinterland, Australia
Frequently asked questions
What does Trio Geometrico mean?
Trio Geometrico is Italian for "geometric trio," referencing the three-element design: round brilliant, baguette, and the gold band itself, set in clean architectural balance.
What style is the Trio Geometrico?
The geometric pairing of round brilliant and baguette diamonds references the architectural aesthetics of 1920s Art Deco jewellery. It works as a modern stacking ring, anniversary band, or wedding band alternative.
Are the diamonds certified?
Yes. Lab-grown diamonds are IGI-certified. Natural diamonds of 0.30ct or above are GIA-certified. All diamonds are graded to F colour and VS clarity.
Can I choose between lab-grown and natural diamonds?
Yes. The Trio Geometrico is offered with either IGI-certified lab-grown or GIA-certified natural F VS diamonds.
How long does it take to make?
Each Trio Geometrico Ring is hand-made to order in our Byron Bay Hinterland atelier by Australian goldsmiths. Lead times typically run 4 to 6 weeks. Free shipping Australia-wide once dispatched, with Lucano's lifetime craftsmanship warranty.
Total Diamond Weight: 0.06 ct