The Roma Radiant Signet Diamond Ring – Lab-Grown | 18K Yellow Gold
Made to order
IGI Certified
6 week lead time
Free, tracked shipping
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Behind the piece
The Roma Radiant Signet Diamond Ring – Lab-Grown | 18K Yellow Gold
Every Una ring begins with a clear point of view and a commitment to craft. Yours is no exception.
The Roma: Radiant-Cut Signet Lab-Grown Diamond Ring
Bold. Sculptural. Unmistakably Striking.
The Roma is a thick, statement-making gold ring featuring a raised radiant-cut lab-grown diamond in a modern signet-style setting. With clean geometry, strong lines, and serious presence, this is a ring designed to stand out—confident, elegant, and full of character.
Crafted in solid 18K gold or platinum and built to feel substantial on the hand, The Roma brings a fresh perspective to a timeless silhouette, made for those who want their jewelry to carry meaning and power.
Features:
- Radiant-cut lab-grown diamond in a bold, signet-inspired setting
- Step-cut facets for architectural brilliance and depth
- Chunky, polished band with smooth, sculptural contours
- Available in 18K yellow gold, white gold, rose gold, or platinum
- Carat range: 1.0 to 3.0 carats
- IGI certified and internally flawless
- Custom engraving included at no extra cost
- Handcrafted to order
Customize Your Roma:
- Select your diamond size: 1.0–5.0 carats
- Choose your metal: 18K yellow, white, or rose gold, or platinum
- Add your personal engraving, complimentary
- Designed for you, delivered worldwide
Why Roma?
The Roma is crafted for impact, confident in its proportions, timeless in its form. Whether worn as a signature piece or a bold alternative to the traditional engagement ring, this design is made to be remembered.
Design your Roma today strength, symmetry, and brilliance in perfect balance.
Sustainable. Sculptural. Made for you.
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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.
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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.