Atelier Metallurgy Guide
Precious Metals & Purity
Why 18-karat hallmarked gold is the global golden ratio of fine jewellery — balancing precious gold purity with structural tensile strength.
18K Recycled Yellow Gold (BIS 750)
75% Pure Gold · 12.5% Silver · 12.5% Copper
Our proprietary honey-tone alloy provides a gentle warm glow without harsh brassiness. Durable for lifelong daily wear.
18K Rose Gold
75% Pure Gold · 20% Copper · 5% Silver
A soft vintage blush tone that develops an exquisite natural lustre alongside skin warmth.
18K White Gold
75% Pure Gold · 15% Palladium · 10% Silver
Plated with ultra-fine rhodium for brilliant mirror reflectivity that accentuates diamond whiteness.
950 Platinum
95% Pure Platinum · 5% Ruthenium
Naturally white, dense, and hypoallergenic. Develops a distinguished heirloom patina over decades.