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- Regular price
- $3,000.00
Halo Lumina Round Solitaire
- Regular price
- $3,000.00
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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Halo Lumina Round Solitaire
- Regular price
- $3,000.00
The Halo Lumina Round Solitaire is a round brilliant halo engagement ring handcrafted in our Byron Bay Hinterland atelier. A round brilliant centre stone framed by 19 hand-set pavé diamonds, in your choice of IGI-certified lab grown or GIA-certified natural diamonds.
Made to order by Australian goldsmiths in 9ct or 18ct yellow, white, or rose gold, as well as platinum. Choose your centre carat (0.50, 1.00, or 1.50ct), diamond origin, and ring size (5-10) to begin your bespoke piece. Prefer the round brilliant without the halo? See the Helios Round Solitaire. For a different shape with the same halo design, see the Halo Lumina Oval Solitaire.
Why the Halo Lumina Round Solitaire
- Round brilliant centre, pavé halo: a round brilliant centre stone framed by 19 round brilliant pavé diamonds. Total diamond weight 0.69ct, 1.19ct, or 1.69ct depending on centre carat.
- Natural diamonds: F VS1 or E VS2, GIA-certified from 0.30ct centre.
- Lab grown diamonds: E VVS1, IGI-certified.
- 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
- Centre stone: round brilliant cut
- Halo: 19 round brilliant pavé diamonds
- Natural diamond clarity: F VS1 or E VS2
- Lab grown diamond clarity: E VVS1
- Total diamond weight: 0.69ct, 1.19ct, or 1.69ct (depending on centre carat)
- Centre carat options: 0.50, 1.00, or 1.50ct
- 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 is a halo engagement ring?
A halo engagement ring features a centre diamond encircled by a ring of smaller pavé diamonds. The halo makes the centre stone appear larger and adds extra brilliance from the surrounding pavé. It is one of the most popular contemporary engagement ring styles.
Why round brilliant?
The round brilliant cut has 57 or 58 facets engineered to maximise light return, making it the most fire and sparkle of any diamond shape. It is the most popular engagement ring cut globally and the most timeless choice.
Are the diamonds certified?
Yes. Lab grown diamonds are IGI-certified at E VVS1. Natural diamonds of 0.30ct or above are GIA-certified at F VS1 or E VS2.
Can I choose between lab grown and natural diamonds?
Yes. The Halo Lumina Round Solitaire is offered with either IGI-certified lab grown diamonds (E VVS1) or GIA-certified natural diamonds (F VS1 or E VS2), at 0.50, 1.00, or 1.50ct centre weights.
How long does it take to make?
Each Halo Lumina Round Solitaire 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 (available options):
- 0.69 ct
- 1.19 ct
- 1.69 ct