Luce Solitaire Ring - solitaire engagement ring - in 18ct white gold - Lucano

Luce Solitaire Ring - solitaire engagement ring - front view - Lucano

Luce Solitaire Ring - solitaire engagement ring - on hand - Lucano

Luce Solitaire Ring - solitaire engagement ring - in 9ct white gold - Lucano

Luce Solitaire Ring - solitaire engagement ring - in 9ct rose gold - Lucano

Luce Solitaire Ring - solitaire engagement ring - angled view - Lucano

Luce Solitaire Ring - solitaire engagement ring - in 18ct yellow gold - Lucano

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Regular price: $3,400.00

SKU: LFJ-1006R-817-9YG_5

Luce Solitaire Ring

Regular price: $3,400.00

Ring Sizes

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

Download Full Chart (PDF)

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/RC_RD_1140010.png
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files/RC_RD_114_0003_5ef674cb-d940-4485-8e6c-71b03e68eb63.png
files/RC_RD_114_0009_414ff896-af23-4b91-a0bf-1fb50ef0fcb0.png

SKU: LFJ-1006R-817-9YG_5

Luce Solitaire Ring

Regular price: $3,400.00

Description

Frequently Asked Questions

Shipping & Returns

Description

The Luce Solitaire Ring is a classic solitaire engagement ring handcrafted in our Byron Bay Hinterland atelier. A single diamond centre stone set alone on a clean polished band, in your choice of IGI-certified lab-grown

Made to order by Australian goldsmiths in 9ct or 18ct yellow, white, or rose gold, as well as platinum. Choose your centre carat, diamond origin, and ring size (5-10) to begin your bespoke piece. Looking at other solitaire engagement rings? See the Helios Round Solitaire, the Imperia Emerald Solitaire, or the Goccia Pear Solitaire.

Why the Luce Solitaire Ring

Classic solitaire silhouette: a single diamond centre stone on a clean polished band. The most timeless engagement ring style, allowing the centre stone to be the sole focal point.
Certified diamonds: IGI-certified lab-grown
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: 1.00ct single diamond, F VS
Setting: classic solitaire on polished band
Certification: IGI (lab)
Metal options: 9ct/18ct yellow, white, rose gold, or platinum
Ring sizes: 5 to 10
Lead time: hand-made to order, 4 to 8 weeks
Origin: Byron Bay Hinterland, Australia

Frequently asked questions

What is a solitaire engagement ring?
A solitaire engagement ring features a single diamond as the centre stone, set alone on a clean band. It is the most classic and enduring engagement ring style, allowing the centre stone to be the sole focal point without surrounding diamonds.

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 Luce Solitaire is offered with either IGI-certified lab-grown

How long does it take to make?
Each Luce Solitaire Ring is hand-made to order in our Byron Bay Hinterland atelier by Australian goldsmiths. Lead times typically run 4 to 8 weeks. Free shipping Australia-wide once dispatched, with Lucano's lifetime craftsmanship warranty.

Frequently Asked Questions

Are lab grown diamonds as good as natural diamonds?

Lab grown and natural diamonds are chemically, physically, and optically identical. Every Lucano diamond is F VS graded. The only differences are provenance and price: lab grown diamonds cost less for the same colour and clarity grade, while natural diamonds carry geological rarity.

What does F VS mean in your diamond grading?

F is the colour grade, the highest 'colourless' tier just below D and E. VS means 'Very Slightly Included', where inclusions are visible only under 10x magnification and not to the naked eye. Every Lucano diamond meets or exceeds this standard.

Where is Lucano jewellery made and how are your diamonds sourced?

Every piece is hand-made in our Byron Bay Hinterland studio by Australian goldsmiths. Our founder is a member of St Eligio, Università e Nobil Collegio degli Orefici jewellery association established in Rome in 1508. Gold is sourced from ABC Refinery (Australia's only LBMA/SGE/COMEX-accredited independent refiner), and every diamond is traceable, RJC-certified, and comes with full chain-of-custody documentation.

What's the difference between 9ct, 18ct, and platinum settings?

9ct gold is harder and more affordable. 18ct gold has a richer warmth and higher gold content (75%). Platinum is the densest and most durable; it doesn't tarnish and develops a soft patina over time. Every Lucano setting holds your diamond with the same goldsmithing precision.

How long does a Lucano hand-made piece take?

Each piece is hand-made to order in approximately 4 to 8 weeks. You can see your specific production and delivery timeline on the product page.

Shipping & Returns

Shipping

Free standard shipping Australia-wide on orders over $100 — every Lucano piece qualifies.
Express shipping $15 AUD. International flat rate $50 USD.
Delivery 2–7 business days within Australia, 1–3 by express, 3–10 internationally, once dispatched.
Every parcel is fully tracked and insured to the full value of your order. A signature is required on delivery.
Australian prices include GST. International customs duties and import taxes are payable by you and set by your local authority.

Returns

Because each piece is handcrafted to order for one person, we don't accept returns or refunds for change of mind.
Faulty or damaged pieces are always put right. Contact us with your order number and photos and we'll arrange a repair, replacement or refund.
Changed your mind before dispatch? Email hello@lucano.com.au — if your piece hasn't entered production we'll do our best to cancel or amend.
Every Lucano ring carries a lifetime craftsmanship warranty.

Full shipping policy and returns policy.