The Sera Cathedral solitaire is a modern take on a timeless engagement classic, designed as a lab-grown diamond ring for those who value clean lines and conscious luxury. A brilliant round lab-grown diamond is set in a refined four-prong white gold head, rising gracefully from sculpted cathedral shoulders on a polished band available in Yellow Gold, White Gold, or Rose Gold. Open geometric details beneath the center stone allow light to flood through, maximizing sparkle while keeping the profile airy and elegant. Every diamond in this ethical diamond jewelry piece is lab-grown and carefully chosen in the VVS to VS+ clarity and D–F color ranges, creating sustainable fine jewelry that feels as enduring as your story.

✨ Key Features

• Round brilliant lab-grown diamond secured in a classic four-prong setting for optimal brilliance
• Architectural cathedral shoulders and open gallery for a refined, airy profile
• High-polish band available in Yellow Gold, White Gold, or Rose Gold for personalized style
• White gold prong head enhances the icy D–F color of the lab-grown center diamond
• Lab-grown diamonds in VVS to VS+ clarity for crisp, high-definition sparkle
• Smooth inner band and balanced design for comfortable, all-day wear

🎯 Why Choose This Ring

• A luxury solitaire look that aligns with your values through ethical, lab-grown diamonds
• Timeless round center with modern cathedral detailing for confidence from every angle
• Designed to pair effortlessly with wedding bands and everyday jewelry stacks
• Sustainable fine jewelry that lets you celebrate love without compromise

🎁 Perfect For

• Romantic engagements and heartfelt proposals
• Anniversaries and milestone celebrations that deserve a meaningful upgrade
• Thoughtful gifts to honor promotions, graduations, or new chapters
• A significant self-purchase lab-grown diamond ring to mark your own achievements

This piece is made from fine gold and plated with 10K/14K/18K real gold, ensuring a beautiful finish that lasts. Each item is carefully crafted with attention to detail, designed to stand the test of time.

That’s why we back it up with our 1-year warranty, covering any defects (excluding lost items), so you can enjoy your jewelry with confidence!

We ship worldwide and offer fast, reliable delivery. We strive to process all orders within 1–3 business days.

You'll also receive tracking information as soon as your order ships, so you can follow your jewellery right to your door.

Packaging: We ship all jewellery in our free custom eco-friendly black gift boxes & protective bubble bags.

We are committed to ethical sourcing and sustainability in every step of our process. Our gemstones and metals are responsibly sourced, ensuring high quality while minimizing environmental impact. We use only conflict-free diamonds, adhering to strict ethical standards. To further reduce our footprint, we package all jewelry in eco-friendly materials, including our signature black gift boxes and protective bubble bags—designed to be both stylish and sustainable.