Lab-Grown Diamond Fine Jewelry
Crafted with Intention
IGI certified lab-grown diamonds set in solid gold. Designed in Italy, made to order, priced with transparency.
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Mother's Day
The Complete Signature Set
Four pieces. One unforgettable gift. Our Mother's Day Signature Set brings together a tennis bracelet, solitaire necklace, stud earrings, and classic ring — all in matching solid gold.
Available in white, yellow, and rose gold. IGI certified diamonds throughout. Made to order in 15–20 days.
Why Astreas
What Sets Us Apart
Real Diamonds
Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds.
IGI Certified
Every diamond 0.30ct+ comes with an independent IGI certificate verifying quality.
Transparent Pricing
No markups, no hidden costs. See exactly what you pay for and why.
Solid Gold Only
14k and 18k solid gold — no plating, no hollow construction, no compromises.
Our Philosophy
Transparency Is Our Standard
Every piece in our collection comes with complete material specifications, stone grades, and certification details. We believe understanding what you're wearing shouldn't require a gemology degree.
Crafted from solid 14k and 18k gold, set with lab-grown diamonds that are chemically identical to mined stones — at a fraction of the price.
Learn Our Story →
Signature Solitaire
Choose Your Diamond Shape
Each shape brings its own character and brilliance
Most Loved Pieces
A Curated Selection
Timeless pieces chosen for their beauty, versatility, and lasting appeal.
Side Stone Rings
Choose Your Diamond Shape
Elegant designs that highlight the center stone with refined side details. Crafted to enhance brilliance while maintaining a timeless look.
Process
How It Works
Choose Your Design
Browse our signature collection or start from a base design you love.
Customize It
Select your carat, metal color, diamond shape, and ring size.
We Craft It
Your piece is made to order in solid gold with an IGI certified diamond.
Delivered to You
Complimentary insured shipping with full documentation and certification.
Moments That Stay
Not just jewelry.
A moment you'll carry forever.
Signature Pieces
Two rings. One unmistakable presence.
Two distinctive rings chosen for their elegance, presence, and timeless femininity.
1,200+
Happy Customers
4.9/5
Average Rating
30-Day
Return Policy
IGI
Certified Diamonds
Free Insured Shipping
Complimentary worldwide shipping on every order. Fully insured, tracked, and discreetly packaged.
30-Day Returns
Not completely in love? Return unworn pieces within 30 days for a full refund. No questions asked.
Lifetime Warranty
Every piece is built to last. We stand behind our craftsmanship with a warranty that covers manufacturing defects.
Testimonials
What Our Customers Say
“The quality exceeded my expectations. The diamond is stunning and the gold feels substantial. Absolutely worth every euro.”
Sophie L.
Paris
“I was skeptical about lab-grown diamonds until I held this ring. It's indistinguishable from my friend's mined diamond — at half the price.”
Maria K.
Munich
“The transparency is what sold me. I knew exactly what I was getting. The IGI certificate gave me complete confidence.”
Elena R.
Milan
Begin Your Journey
Find Your Perfect Piece
Every Astreas piece is made to order — crafted specifically for you, with the diamond shape, gold color, and size you choose.
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