MadisonDia Loose Lab-Grown Ruby collection. Every stone matches the exact chemical composition, crystal structure, and optical properties of natural ruby — vivid red color, exceptional brilliance, and Mohs 9 hardness (the same hardness as sapphire) — at a fraction of natural ruby's cost.
Hong Kong Government "No Fakes" certified brand • BUYMA 5.0 rating (1,343+ verified reviews). Backed by the same authenticity standard Madison Avenue has applied as an authorized dealer for Versace, Hugo Boss, and Moschino for over a decade.
Why Choose MadisonDia Loose Lab-Grown Ruby
CURATED QUALITY
One Top-Tier Standard, No Comparing Grades
We only offer one curated standard of vivid, deep red color — so you never have to second-guess which grade to pick. Just choose your size and cut.
PRICING
One Flat Rate, Any Cut
Unlike diamonds, our lab-grown ruby is priced per carat regardless of cut. Round, oval, princess, emerald, or cushion — same price, so you choose based on style, not budget.
DURABILITY
Mohs 9 Hardness
The same hardness as sapphire and natural ruby — second only to diamond. Built for everyday rings, earrings, and pendants that last a lifetime.
AFTER-SALES
1-Year Complimentary Repair
Once set into finished jewelry, your ruby is covered by one year of complimentary repair service.
Reference Prices (Any Cut, USD — calculated reference)
Same price across Round, Oval, Princess, Emerald, and Cushion cuts.
Shop by Cut
HK Govt Precious Metals & Stones Dealer Cat. A, Reg. No. A-B-26-05-10954.
