Handcrafted engagement rings

Lumea brilliant-cut diamond

A light thatlasts forever

Every Lumea diamond is lab-grown, masterfully cut and set into a ring that tells your story.

Lab-grown diamonds

Our diamonds are lab-grown

They are created in a laboratory, not mined. In composition and appearance they are identical to natural diamonds; only origin and price differ, so for the same money you get a larger, cleaner stone.

They are grown by the HPHT process, are Type II and carry no post-growth treatments (as grown). Cheaper lab-grown stones are often treated afterwards; ours are not. Each one has its own IGI certificate.

More about lab-grown diamonds →

Our philosophy

We don't just sell diamondswe capture a momentmeant to last a lifetime.

The collection

Signature rings

Aurora, Round Brilliant
Round Brilliant

Aurora

from 2.900 €

From 1.00 ct · color D–F · clarity VVS1–VS2 · Excellent cut · 18k white/yellow gold · IGI certificate

Colors D–F are the highest, colorless grade. Clarity VVS1–VS2 means no inclusions are visible to the naked eye.

Céleste, Halo Pavé
Halo Pavé

Céleste

from 3.400 €

Center stone from 1.00 ct · color D–F · clarity VVS1–VS2 · Excellent cut · 18k white/yellow gold · IGI certificate

Colors D–F are the highest, colorless grade. Clarity VVS1–VS2 means no inclusions are visible to the naked eye.

Ovale, Oval Hidden Halo
Oval Hidden Halo

Ovale

from 3.100 €

From 1.00 ct · color D–F · clarity VVS1–VS2 · Excellent polish and symmetry · 18k white/yellow gold · IGI certificate

Colors D–F are the highest, colorless grade. Clarity VVS1–VS2 means no inclusions are visible to the naked eye.

Émeraude, Emerald Trilogy
Emerald Trilogy

Émeraude

from 4.200 €

Center stone from 1.00 ct · color D–F · clarity VVS1–VS2 · Excellent polish and symmetry · 18k white/yellow gold · IGI certificate

Colors D–F are the highest, colorless grade. Clarity VVS1–VS2 means no inclusions are visible to the naked eye.

Macro of a Lumea diamond

Anatomy of brilliance

The four C's

Every stone is lab-grown and carries its own IGI certificate. We judge it by the four measures that define its rarity and its fire.

01

Cut

The most important of the four. A poorly cut stone looks dull no matter its color. Round cuts are graded Excellent; for other shapes IGI grades polish and symmetry, which are Excellent too.

02

Color

D, E, F. The eye can barely tell them apart, yet the price differs, so I tell you when the surcharge is worth it and when it isn't.

03

Clarity

VVS1 to VS2. Above VS2 you pay for something you will never see.

04

Carat

From 1.00 ct up. Shapes like oval and marquise look larger at the same weight.

A Lumea master jeweller setting a diamond

Craftsmanship

Made by hand,made to last.

Every ring is born in our atelier, where masters with decades of experience set each stone by hand, no rush, no compromise.

0%

IGI certificate per stone

0

days to a finished ring

0C

grading standards

Foreverbegins here.

Lumea Diamonds
Bespoke Lumea engagement ring

Bespoke

Design a ringunlike any other.

From choosing the stone to the final detail, together we create a ring that exists only for your story.

Jaka Širok, Lumea Diamonds

Who is behind Lumea

Jaka Širok

Founder & diamond consultant

“You buy an engagement ring once in a lifetime. My job is to make sure you buy it right.”

I personally guide every couple, from choosing the stone to the finished ring. No pressure, no sales tricks. If you don't know where to start, let's simply talk.

  • Personal 1-on-1 consultation, in person or over a video call
  • I select and inspect every stone myself, IGI certificate with each one
  • I reply within 24 hours and stay available long after the purchase
Book a call with meFree and non-binding, 30 min

Customer reviews

Stories from our couples

Real moments, photographed by the people who lived them.

★★★★★4.8/ 5 · based on more than 260 reviews
Matej, Ljubljana · AuroraAurora
★★★★★
“Picked the ring up in person and proposed at her favourite café. Big thumbs up, it really sparkles.”
Matej, Ljubljana Verified purchase
Žan, Celje · OvaleOvale
★★★★★
“We ordered the oval cut in yellow gold. Arrived in three weeks, size was spot on. My wife never takes it off.”
Žan, Celje Verified purchase
Sara, Koper · CélesteCéleste
★★★★★
“Very happy with it. My friends keep asking me where we got it.”
Sara, Koper Verified purchase
Ana, Maribor · ÉmeraudeÉmeraude
★★★★★
“Simple but really beautiful ring. Photos honestly don't do it justice, it's nicer in person.”
Ana, Maribor Verified purchase
Nika, Kranj · BespokeBespoke
★★★★
“Lovely ring, but resizing took a week longer than promised. No other complaints.”
Nika, Kranj Verified purchase
Lara, Portorož · BespokeBespoke
★★★★★
“We built it ourselves in the configurator on their site. Rose gold, pear diamond. Exactly what we wanted.”
Lara, Portorož Verified purchase
Tomaž, Novo Mesto · ÉmeraudeÉmeraude
★★★★★
“Three stones for our three years. They engraved our date inside, no extra charge. Great team.”
Tomaž, Novo Mesto Verified purchase
Maja, Ljubljana · CélesteCéleste
★★★★★
“I cried when I opened the box. Looks nice in pictures, ten times nicer in real life.”
Maja, Ljubljana Verified purchase
Jakob, Domžale · AuroraAurora
★★★★★
“Classic solitaire, no complications. You get a certificate and a lifetime warranty, which mattered most to me.”
Jakob, Domžale Verified purchase
Eva, Bled · BespokeBespoke
★★★★★
“We went hiking the day after the proposal and the ring stayed on the whole time. Not a scratch.”
Eva, Bled Verified purchase
Rok, Ptuj · OvaleOvale
★★★★★
“Looks completely plain from the outside, but there are hidden stones underneath. That's my wife's favourite part.”
Rok, Ptuj Verified purchase
Tina, Velenje · BespokeBespoke
★★★★
“The ring is really beautiful. The box arrived a bit dented, but the ring was fine. Hence one star less.”
Tina, Velenje Verified purchase
Kaja, Nova Gorica · OvaleOvale
★★★★★
“Photo from our weekend in Rovinj. Oval diamond on a thin gold band, completely simple, but I still stare at it every day.”
Kaja, Nova Gorica Verified purchase
Iza, Ljubljana · ÉmeraudeÉmeraude
★★★★★
“We wanted a vintage look and they nailed it. Looks like it came from grandma, in the best way.”
Iza, Ljubljana Verified purchase
Filip, Kamnik · BespokeBespoke
★★★★★
“A ring with two stones we picked ourselves. The consultation was relaxed, nothing pushy.”
Filip, Kamnik Verified purchase
David, Škofja Loka · AuroraAurora
★★★★★
“I proposed at a picnic. A year later the ring still looks brand new, even though she never takes it off.”
David, Škofja Loka Verified purchase
Neža, Murska Sobota · OvaleOvale
★★★★
“We picked the ring up right before our holiday. A whole week at the seaside and salt and sun did nothing to it. We waited a bit longer, but it was worth it.”
Neža, Murska Sobota Verified purchase
Zala, Ljubljana · CélesteCéleste
★★★★★
“I take a photo of it every morning and I'm not even exaggerating. It sparkles like crazy.”
Zala, Ljubljana Verified purchase
Luka, Kranj · AuroraAurora
★★★★★
“My wife is a nurse and needs a ring that doesn't snag on gloves. This bezel is exactly that. Practical and pretty.”
Luka, Kranj Verified purchase
Pia, Piran · ÉmeraudeÉmeraude
★★★★★
“Emerald cut with baguettes in yellow gold. Ordering, delivery, everything went smoothly. Recommended.”
Pia, Piran Verified purchase

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  • IGI certificate with every stone
  • Made and delivered in 45 days
  • Personal advice before you buy
  • Size set before we make the ring

LUMEA

Handcrafted engagement rings with lab-grown diamonds. Created in Europe, designed for forever.

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Poslovne storitve Jaka Širok s.p.

Reg. no.: 9227024000

contact@lumeadiamond.com · +386 31 372 169

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