MadisonDia 9K Lab-Grown Diamond Jewelry collection. 9K gold (37.5% pure gold) is our most-recommended everyday setting — harder and more prong-secure than 14K or 18K, at a more accessible price. Every diamond still meets our full standard: D color / VVS / 3EX / IGI Certified, rated MISI™ 80+.
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.
DURABILITY
Harder Than 14K or 18K
At 37.5% pure gold, 9K is mixed with a higher ratio of durable alloys, making it harder than higher-karat gold. Prongs resist bending, and your diamond is less likely to loosen over years of daily wear.
VALUE
Accessible Without Compromising Grading
Gold karat affects metal cost and hand-feel only — never diamond quality. Every 9K piece carries the same D/VVS/3EX/IGI standard as our 18K collection.
CERTIFICATION
IGI Certificate Sent Before Shipping
Every main diamond is IGI certified. We email the certificate for your review before your order ships.
AFTER-SALES
1-Year Complimentary Repair
All finished 9K jewelry includes one year of complimentary repair, covering prong checks, polishing, and resizing.
All stones meet D color / VVS / 3EX with IGI certification. 9K gold setting cost is separate from the diamond price shown — see individual product pages for total pricing.
