The Aurelia Three-Stone Trilogy Diamond Ring – Lab-Grown | 18K Gold or Platinum
Made for you, not a shelf
IGI Certified Diamond
Ready in ~6 weeks
Free insured shipping
Each ring is handcrafted once you order. No stock. No shortcuts. Just yours.
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Behind the piece
The Aurelia Three-Stone Trilogy Diamond Ring – Lab-Grown | 18K Gold or Platinum
Every Una ring begins with a clear point of view and a commitment to craft. Yours is no exception.
The Aurelia sets three lab-grown diamonds in a row, a brilliant centre stone with a matching stone on either side. The three-stone trilogy is often read as past, present and future, which makes it a favourite for engagements and milestone anniversaries alike. It catches light from every angle and is made by hand to order in solid 18K gold or platinum.
Specifications
- Diamond: Lab-grown, high clarity, IGI certified
- Shape: Round brilliant, three-stone
- Setting: Three-stone trilogy
- Metal: 18K yellow, white or rose gold, or platinum
- Carat: 1ct to 5ct, chosen at checkout
- Engraving: Complimentary
- Made to order: Handcrafted to order, around six weeks
- Designed in Australia
Why three stones?
The three-stone trilogy design has been a symbol of commitment for centuries, long before it became known as the "past, present and future" ring. Three stones create a visual rhythm that draws the eye across the band — the centre stone elevated, the shoulder stones echoing it in scale. In a well-made trilogy, the proportions feel inevitable.
The Aurelia uses round brilliant cut stones throughout, which maximises light return and creates an even, consistent sparkle across all three. This is a ring that looks extraordinary in photographs and extraordinary in person.
Lab-grown, IGI-certified
Each Aurelia is set with IGI-certified lab-grown diamonds — real diamonds in every meaningful sense, with the same chemical composition, hardness, and optical properties as mined stones. The IGI certificate documents the cut, clarity, colour and carat of your specific stones. Lab-grown diamonds at the same quality grade cost significantly less than mined, which means you can access a larger, better-cut trilogy ring for the same budget.
Explore our full range of solitaire rings, oval cut rings, and emerald cut rings if you're considering different styles.
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The Una ring builder
Create the ring that feels like you. Our Ring Builder lets you choose your diamond, metal and proportions with total clarity, guided by the same design principles we use in-house.
ready to wear
Our signature pieces
From delicate pavé bands to bold diamond staples, each Una design begins with a clear point of view: modern, refined, and made to be worn every day. Every piece is crafted with lab-grown diamonds, ensuring beauty with purpose.
una x forever projects
Designed with care, backed by purpose
We’ve partnered with Forever Projects as part of our 1% Pledge. That means every single Una Diamond purchase contributes to life-changing programs for mothers and children.