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Theia Round Eternity Ring - slim diamond eternity ring, handcrafted in Australia by Lucano
Theia Round Eternity Ring - slim diamond eternity ring - side profile - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - angled view - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - three-quarter view - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - detail close-up - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - top view - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - on hand - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - in 9ct yellow gold - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - in 18ct yellow gold - Lucano
Theia Round Eternity Ring - slim diamond eternity ring - in 9ct white gold - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring, handcrafted in Australia by Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - side profile - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - angled view - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - three-quarter view - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - detail close-up - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - top view - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - on hand - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - in 9ct yellow gold - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - in 18ct yellow gold - Lucano
  • Theia Round Eternity Ring - slim diamond eternity ring - in 9ct white gold - Lucano
$4,550.00
SKU: LFJ-1003R-816-9YG_5

Theia Round Eternity Ring

$4,550.00
Ring Size Chart
Stones
Color
Ring size

The Theia Round Eternity Ring is a slim diamond eternity band handcrafted in our atelier. A continuous row of round brilliant diamonds totalling 1.25ct in a 2.2mm band, 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 round-brilliant eternity styles? See the Vesta Band or the Elysian Princess Eternity Ring.

Why the Theia Round Eternity Ring

  • Slim round brilliant eternity: continuous row of round brilliant diamonds, 1.25ct total in F VS quality, set in a 2.2mm band.
  • Slim profile for stacking: the 2.2mm width pairs beautifully with engagement rings without competing for visual weight.
  • 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 Australian goldsmiths. 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: continuous row of round brilliants, F VS
  • Total diamond weight: 1.25ct
  • Width: 2.2mm
  • Setting: continuous full eternity
  • 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

Frequently asked questions

What is Theia named after?
Theia is the Greek goddess of light and brilliance, mother of the sun and moon. The Theia Round Eternity Ring takes its name from her, reflecting the continuous brilliance of round brilliant diamonds around the band.

Is the Theia a wedding band or eternity ring?
Both. At 1.25ct and 2.2mm wide, the Theia works as a substantial wedding band, an anniversary eternity ring, or a slim everyday-wear statement piece. Its slim 2.2mm profile pairs particularly well with engagement rings.

How does Theia compare to the Vesta Band?
Both are continuous round brilliant eternity rings. The Theia is slimmer (2.2mm vs 2.8mm) and has higher diamond weight (1.25ct vs 0.95ct), reading slimmer but with more sparkle. The Vesta reads slightly more substantial.

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.

How long does it take to make?
Each Theia Round Eternity Ring is hand-made to order 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: 0.99 ct

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 6 to 8 weeks. You can see your specific production and delivery timeline on the product page.
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