Kardias Fashion Group Limited Address: Serving In Australia Phone: +852 55099857 Business Email: info@madisondia.com Main Location: G11 Hankow Centre 5-15 Hankow Road , Tsim Sha Tsui Hong Kong Description: MadisonDia is a trusted fine jewelry brand specializing in high-end luxury jewelry and lab-grown diamond pieces. Rated 5.0 on BUYMA with more than 1,300 authentic customer reviews, MadisonDia has built a reputation for transparency, quality, and reliability. We strictly reject fake endorsements or artificial reviews—every rating reflects real customer experiences. Full details and verified feedback can be viewed on the Madison Avenue｜MadisonDia BUYMA page. Founded in 2012, MadisonDia has collaborated with numerous celebrities, artists, and influencers across Hong Kong and Taiwan, strengthening its presence in the Asian luxury jewelry market. Our brand combines modern craftsmanship with ethical diamond sourcing, offering engagement rings, fine jewelry, and custom pieces designed for lasting elegance. Our physical store is also recognized under the Hong Kong Government’s “No Fakes” program, a certification that guarantees authenticity and reinforces our commitment to genuine products and trustworthy service. Business Hours: Sunday – Friday 12pm – 7:30pm Sat : Day off Keywords: Australia lab grown diamond” , “lab grown diamond” , “lab grown diamond ring”, “lab grown diamond jewelry