3 Carat Lab-Grown Diamond Engagement Rings

Dreaming of a ring that dazzles? Our 3 carat diamond engagement rings offer an impressive display of brilliance and luxury. This size is perfect for those who desire a bold statement piece that captures attention and admiration. Each ring in our collection is carefully crafted to highlight the beauty of lab-grown diamonds, making them an ethical and stunning choice. 

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Remi oval lab-grown diamond bezel solitaire ring in solid gold Remi Oval Bezel — on-model

Remi Oval Bezel Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
Terra cushion-cut lab-grown diamond heavy-bezel ring in solid gold Model wearing the Terra cushion-cut lab-grown diamond bezel ring in solid gold

Terra Cushion Heavy Bezel Diamond Ring

HK$11,880.00 HK$29,880.00
Esme marquise lab-grown diamond split-shank solitaire ring in solid gold Side view of the Esme marquise split-shank lab-grown diamond ring in solid gold

Esme Marquise Split Shank Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Esme elongated cushion lab-grown diamond split-shank solitaire ring in solid gold Side view of the Esme elongated cushion split-shank lab-grown diamond ring in solid gold

Esme Elongated Cushion Split Shank Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Esme oval lab-grown diamond split-shank solitaire ring in solid gold Esme Oval Split Shank — on-model

Esme Oval Split Shank Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Nectar toi et moi round and pear lab-grown diamond ring in solid gold Nectar round and pear toi et moi diamond ring, side profile

Nectar Round Pear Floating Toi et Moi Diamond Ring

HK$17,880.00 HK$23,880.00
Aura round brilliant lab-grown diamond hidden halo solitaire ring in solid gold, front view Aura Round Hidden Halo Solitaire Diamond Ring

Aura Round Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura cushion-cut lab-grown diamond hidden halo solitaire ring in solid gold, front view Aura Cushion Hidden Halo Solitaire Diamond Ring

Aura Cushion Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura radiant-cut lab-grown diamond hidden halo solitaire ring in solid gold, front view Aura Radiant Hidden Halo Solitaire Diamond Ring

Aura Radiant Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura oval lab-grown diamond hidden halo solitaire ring in solid gold Aura Oval Hidden Halo — on-model

Aura Oval Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura emerald-cut lab-grown diamond hidden halo solitaire ring in solid gold Aura Emerald Hidden Halo Solitaire Diamond Ring

Aura Emerald Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura pear-cut lab-grown diamond hidden halo solitaire ring in solid gold, front view Aura Pear Hidden Halo Solitaire Diamond Ring

Aura Pear Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Aura marquise-cut lab-grown diamond hidden halo solitaire ring in solid gold, front view Aura Marquise Hidden Halo Solitaire Diamond Ring

Aura Marquise Hidden Halo Solitaire Diamond Ring

HK$10,880.00 HK$28,880.00
  • +4
Cora asscher-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Asscher Cathedral Pavé Solitaire Diamond Ring

Cora Asscher Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora pear-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Close-up of a hand wearing a diamond ring with a neutral background

Cora Pear Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora emerald-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Emerald Cathedral Pavé Solitaire Diamond Ring

Cora Emerald Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora cushion-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Cushion Cathedral Pavé Solitaire Diamond Ring

Cora Cushion Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora radiant-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Radiant Cathedral Pavé Solitaire Diamond Ring

Cora Radiant Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora marquise-cut lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Marquise Cathedral Pavé Solitaire Diamond Ring

Cora Marquise Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora oval lab-grown diamond cathedral pavé solitaire ring in solid gold Cora Oval Cathedral Pavé Solitaire Diamond Ring

Cora Oval Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Cora round brilliant lab-grown diamond cathedral pave solitaire ring in solid gold, front view Cora Round Cathedral Pavé Solitaire Diamond Ring

Cora Round Cathedral Pavé Solitaire Diamond Ring

HK$12,880.00 HK$30,880.00
  • +4
Vesper oval lab-grown diamond baguette ring in solid gold Vesper oval lab-grown diamond baguette ring, side profile

Vesper Oval Baguette Diamond Ring

HK$14,880.00 HK$32,880.00
  • +4
Vesper radiant-cut lab-grown diamond baguette ring in solid gold Side view of the Vesper radiant-cut lab-grown diamond baguette ring in solid gold

Vesper Radiant Baguette Diamond Ring

HK$14,880.00 HK$32,880.00
  • +4

Three carats is a statement, and lab-grown is what makes it a reasonable one — a 3.0-carat stone with a mined origin would sit in a different price universe entirely. Every ring in this collection centres on a full 3.0-carat diamond, IGI certified, with identical brilliance and hardness to mined, so the scale comes without compromise.

A three-carat centre stone rewards a setting that lets it breathe: a cathedral mount to lift it into the light, a hidden halo for extra fire, or a clean solitaire that lets the carat speak for itself. Elongated cuts — oval, emerald, marquise — carry three carats with particular elegance across the finger. Each ring is set in solid recycled gold and made to order, your stone set by hand.

How large is the centre stone?

Cathedral and hidden-halo settings flatter bigger centre stones; a low solitaire keeps the focus entirely on the diamond.

What setting suits a larger stone?

Cathedral and hidden-halo settings flatter bigger centre stones; a low solitaire keeps the focus entirely on the diamond.

Are lab-grown diamonds real diamonds?

Yes. A lab-grown diamond is chemically, physically and optically identical to a mined one — same hardness, same fire, same sparkle. The only difference is origin: ours are grown rather than dug, which means a cleaner provenance and far more carat for your budget.

How long does my ring take to make?

Each ring is made to order. Please allow 2–3 weeks before it ships — your stone, set by hand, in the metal and setting you choose.