Lab-Grown Diamond Rings | Solitaire, Halo, Sidestone

MadisonDia Lab-Grown Diamond Rings collection. Solitaire, halo, sidestone, and eternity styles, every diamond meeting D color / VVS / 3EX / IGI Certified, rated MISI™ 80+. Choose your gold and ring size — the price stays the same across every size.

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 Lab-Grown Diamond Rings

CERTIFICATION

IGI Certificate Sent Before Shipping

Every main diamond is IGI certified. We email the certificate for your review before your ring ships.

SIZING

Same Price, Every Ring Size

Sizes 9 through 13 are priced identically for the same carat and gold choice — pick the size that fits, not the size that's cheapest.

GOLD OPTIONS

9K or 18K, Same Diamond Standard

Gold karat affects durability and cost only — never diamond grading. 9K is harder and more accessible; 18K offers a deeper tone.

AFTER-SALES

1-Year Complimentary Repair

All finished rings include one year of complimentary repair, covering prong checks, polishing, and resizing.

Reference Prices by Style (1.0ct, VVS2, 18K, USD — calculated reference)

Setting style affects price more than carat at this range. All prices below are for the same 1.0ct VVS2 diamond in 18K white gold.

SOLITAIRE
from $991
SIDESTONE
from $1,067
HALO
from $1,246

Shop by Style

Recommended Reading Before You Choose

Verify any certificate directly at igi.org. HK Govt Precious Metals & Stones Dealer Cat. A, Reg. No. A-B-26-05-10954.