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- Regular price
- $5,800.00
Petal Ring
- Regular price
- $5,800.00
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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Petal Ring
- Regular price
- $5,800.00
The Petal Ring is a high-carat diamond eternity ring handcrafted in our Northern Rivers studio. A continuous petal-pattern band set with a substantial 4.00ct of diamonds in ethical solid gold, in your choice of natural or lab-grown diamonds.
Made to order by Australian goldsmiths using gold sourced exclusively from ABC Refinery, Australia's only independent refiner with simultaneous LBMA, SGE, and CME COMEX accreditation. Looking at related high-carat eternity styles? See the Lumière Emerald Eternity Ring or the Fascia Diamond Ring.
Why the Petal Ring
- High-carat petal eternity: 4.00ct total diamond weight in F VS quality, set in a petal pattern across the entire band.
- Substantial statement piece: the carat weight reads as a major anniversary ring or right-hand statement.
- Natural or lab-grown: available with either natural or lab-grown diamonds.
- Ethical gold sourcing: sourced from ABC Refinery, Australia's only independent refiner with LBMA, SGE, and CME COMEX accreditation.
- Italian goldsmith heritage: our founder is a member of the Università degli Orefici (est. 1508, Rome).
- Lifetime craftsmanship warranty: covers the workmanship of every Lucano ring for life. Free shipping Australia-wide.
Specs and details
- Total diamond weight: 4.00ct, F VS
- Metal: ethical solid gold
- Origin: Northern Rivers studio, Australia, hand-made to order
- Gold sourcing: ABC Refinery (LBMA, SGE, CME COMEX accredited)
- Lead time: 4 to 6 weeks
Frequently asked questions
Is the Petal Ring a wedding band or anniversary ring?
At 4.00ct total diamond weight, the Petal Ring reads more as a statement anniversary eternity ring than a daily-wear wedding band. It is typically given to mark a milestone anniversary (10, 25, or 50 years) or as a major right-hand statement piece.
Natural or lab-grown?
Both options are offered. The price difference is substantial at this carat weight: lab-grown delivers the same look at roughly 50-70% of the natural price.
How is the gold sourced?
Gold is sourced exclusively from ABC Refinery, Australia's only independent refiner with simultaneous accreditation from the London Bullion Market Association (LBMA), Shanghai Gold Exchange (SGE), and CME Group COMEX.
How long does it take to make?
Each Petal Ring is hand-made to order in our Northern Rivers studio. Lead times typically run 4 to 6 weeks. Free shipping Australia-wide once dispatched, with Lucano's lifetime craftsmanship warranty.
Total Diamond Weight: 4.00 ct