Cushion cut lab grown diamond engagement ring on champagne satin – Unii Jewels

IGI Certified Lab Grown Diamonds

Lab Grown Diamond Engagement Rings
Luxury diamonds without the luxury markup. Ethical, brilliant and handcrafted fine jewelry.
Woman wearing lab grown diamond statement earrings and necklace – Unii Jewels

Ethical Luxury Jewelry

Lab Grown Diamond Earrings, Necklaces & Bracelets
Brilliant diamonds crafted for everyday elegance.
1/3
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine
✦
Flat 30% OFF
✦
Halloween Sale Live
✦
Luxury Essentials
✦
Free Gift Above 3000$
✦
Engagement Ring Sale Live
✦
Designed to Shine

Shop by Category

UNII JEWELS Collection

Experience the essence and discover the true meaning of luxury, redefined.

Rings

276 products

Necklace

31 products

Earrings

79 products

Bracelets

33 products

Designed Around You

Truly Custom Ring

Every custom ring is designed together with you. We share your design for review and refine every detail until it is exactly right, then handcraft it. Your timeline depends on your design, and we confirm it with you before production begins.

Before
After

Ethically crafted IGI-certified lab-grown diamond jewelry designed for brilliance, beauty, and everyday luxury.

Why Choose Unii Jewels

Shop IGI-certified lab-grown diamond jewelry handcrafted for brilliance, ethical sourcing, and timeless elegance. Discover engagement rings, earrings, necklaces, and bracelets designed to last a lifetime.

IGI Certified Diamonds

Every diamond is independently IGI certified for verified quality, exceptional brilliance, and complete transparency.

Ethically Sourced

Our lab-grown diamonds deliver exceptional beauty while supporting a more sustainable, responsible, and environmentally conscious future.

Handcrafted Excellence

Every jewelry piece is handcrafted by skilled artisans with exceptional attention to detail, precision, and lasting quality.

Custom Jewelry

Create personalized engagement rings and fine jewelry designed to reflect your unique style and unforgettable moments.

Unii Jewels

4.9 148 reviews
  • Emily Carter – Austin, TX
    Emily Carter – Austin, TX
    September 2, 2026
    Customer review photo
    I was honestly nervous ordering a ring online, but this exceeded my expectations. The sparkle is unreal and it looks even better in person. My fiancĆ© hasn’t stopped staring at it. Shipping was faster than expected too!
  • Jason Miller – Denver, CO
    Jason Miller – Denver, CO
    September 5, 2026
    Customer review photo
    Gorgeous stone! I never thought I could ever have a real diamond of this size and beauty! Great Service and Communications and Fast Delivery Too! Thank You for the High Quality Lab Grown Diamond! Great working with Unii!
  • Brandon Lee – Seattle, WA
    September 9, 2026
    Customer review photo
    Great communication and even better product. The ring looks exactly like the photos. Very clean finish and solid weight to it. Would purchase again without hesitation.
  • Olivia Thompson – Miami, FL
    Olivia Thompson – Miami, FL
    September 12, 2026
    Customer review photo
    Gorgeous earrings! I never thought I could own real diamond earrings of this size and beauty. The sparkle is absolutely stunning and they look even more amazing in person! Great service, clear communication, and super fast delivery too. Thank you for the high-quality lab grown diamonds it was a pleasure working with Unii!
  • Madison Brooks – Chicago, IL
    Madison Brooks – Chicago, IL
    September 16, 2026
    Customer review photo
    Absolutely in love with my ring! It’s elegant, classy, and super comfortable to wear daily. The packaging was also really nice which made the whole experience feel special.
  • Tyler Anderson – Charlotte, NC
    Tyler Anderson – Charlotte, NC
    September 19, 2026
    Customer review photo
    I did a lot of research before buying and I’m glad I chose this one. The diamond quality is impressive and the ring is perfectly polished. Great value for the price.

Expert answers about IGI Certified lab-grown diamonds, engagement rings, customization, and worldwide shipping.

Frequently Asked Questions

Find answers to common questions about our IGI Certified lab-grown diamonds, engagement rings, customization, shipping, certification, and jewelry care.

    Are lab-grown diamonds real diamonds?

    Yes. Lab-grown diamonds have the same chemical composition, brilliance, durability, and optical properties as mined diamonds. The only difference is that they are created in a controlled laboratory environment rather than extracted from the earth.

    Are your diamonds IGI certified?

    Diamonds listed as IGI certified come with an independent IGI grading report covering carat, color, clarity, and cut. Certification is shown on each product page, so you can confirm it and view the grading details before you buy.

    Do you ship to the USA?

    Yes. We offer free, fully insured shipping on every order to the United States, United Kingdom, Canada, and Australia. Import duties and taxes are already included in our prices, so there is nothing extra to pay on delivery.

    What metals do you offer?

    Our jewelry is available in a selection of premium metals, including 10K, 14K, and 18K gold in yellow, white, and rose finishes, as well as platinum. Availability depends on the specific design.

    Can I customize a ring?

    Yes. Many of our engagement rings can be customized by selecting your preferred diamond shape, carat weight, precious metal, and ring size. Custom design options may also be available.

    How long does shipping take?

    Most pieces are made to order and take 6–8 days to craft. Once dispatched, delivery to the US, UK, Canada, and Australia takes about 10–12 days, so please allow around 16–20 days in total. Ready-to-ship pieces skip production and arrive in about 10–12 days. Read our full Shipping & Delivery Policy.

    Our Best Service for You

    Hear from our happy customers about their experience

    Customization Services

    Customization Services

    Certified Quality

    Certified Quality

    Free Consultation

    Free Consultation

    Fast Delivery

    Fast Delivery

    Global Shipping

    Global Shipping

    After-Sales Support

    After-Sales Support