Does the ring price change with ring size?

No. For the same carat weight and gold choice, the price is identical across sizes 9 through 13. You choose your size based on fit, not cost.

What is the difference between solitaire, halo, and sidestone rings?

A solitaire ring features a single center diamond with no accent stones. A halo ring surrounds the center diamond with smaller stones to increase perceived size and sparkle. A sidestone ring places smaller diamonds along the band beside the center stone. All three use the same D color, VVS clarity, 3EX cut, IGI certified center diamond standard.

Are MadisonDia lab-grown diamond rings IGI certified?

Yes. Every center diamond is IGI certified to D color, VVS clarity, and 3EX cut. We email the certificate for your review before the ring ships.

Should I choose 9K or 18K gold for my ring?

Gold karat affects durability, tone, and price, not diamond quality. 9K gold is harder and more affordable, making it a strong choice for everyday wear. 18K gold offers a deeper, richer tone at a higher price point. The diamond grading is identical either way.

Can I customize a lab-grown diamond ring?

Yes. MadisonDia offers a custom ring design service with a CAD and 3D preview before production begins, so you can approve the design before it's made.

How do I verify my diamond's IGI certificate?

Enter the report number from your certificate directly on the official IGI website at igi.org. The listed specifications should match your ring's center diamond.

Collection: Lab-Grown Diamond Rings | Solitaire, Halo, Sidestone

Q: Do MadisonDia rings come with a warranty?

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

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

Solitaire Rings → Halo Rings → Sidestone Rings → 9K Gold Rings → 18K Gold Rings →

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Collection: Lab-Grown Diamond Rings | Solitaire, Halo, Sidestone