The Sora 18K Yellow Gold: Oval-Cut Lab-Grown Diamond Signet Ring | 18K Gold or Platinum
Made to order
IGI Certified
6 week lead time
Free, tracked shipping
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Behind the piece
The Sora 18K Yellow Gold: Oval-Cut Lab-Grown Diamond Signet Ring | 18K Gold or Platinum
Every Una ring begins with a clear point of view and a commitment to craft. Yours is no exception.
The Sora: Oval-Cut Lab-Grown Diamond Signet Ring
Sculpted. Seamless. Made to Stand Out.
The Sora is a thick, high-shine signet-style ring featuring a bezel-set oval lab-grown diamond nestled into a smooth, domed band. With soft curves and confident weight, this design fuses modern form with timeless simplicity—ideal for those who want impact without excess.
Crafted in solid 18K gold or platinum, The Sora sits flush against the finger, giving it a seamless feel and a powerful presence. Designed to wear your way—on your index, pinky, or as a bold alternative to traditional engagement rings.
Features:
- Oval-cut lab-grown diamond in a bezel-set, signet-inspired setting
- Smooth, high-polish band with a solid, sculptural profile
- Domed design for comfortable, seamless wear
- Available in 18K rose gold, yellow gold, white gold, or platinum
- Carat range: 1.0 to 4.5 carats
- Internally flawless and IGI certified
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Custom engraving included at no additional cost
Customize Your Sora:
- Choose your diamond size: 1.0–4.5 carats
- Select your metal: 18K gold (rose, yellow, white) or platinum
- Add your personal engraving, complimentary
- Handcrafted for you, shipped worldwide
Why Sora?
The Sora is effortless strength, bold but wearable, classic yet distinctive. Designed for modern rituals, personal milestones, or simply because. No frills. Just form, flow, and fire.
Design your Sora today made for impact, built to last.
Sustainable. Sculptural. Made for you.
create your own
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.