Clarity at every step
Every center stone is independently graded, with its character and specifications explained in plain language.
About Sergio Christoph
Brilliance, made more meaningful.
Born in Bali, Sergio Christoph pairs the precision of certified lab diamonds with a warm, human approach to fine jewelry.
Explore the collectionOur point of view
Modern luxury should be transparent, considered and entirely yours.
We believe the beauty of a diamond is inseparable from the intention behind it—how it is made, how it is chosen and what it comes to represent.
Designed around you
Our process begins with listening. Proportion, setting and finish are shaped around your story and way of living.
Made to remain
Precious metals, careful engineering and attentive aftercare create pieces intended for a lifetime of wear.
Bali · Indonesia
Global precision. An island sense of ease.
Our Sanur atelier is a place to slow down, compare stones in natural light and make confident decisions without ceremony or pressure.
Visit the atelierOur stores
Find us in Bali.
Visit the atelier or one of our boutique partners — map, hours and contacts below.
Nothing here yet — the catalogue is being prepared.
“A diamond can be technically perfect. We make sure it feels personal, too.”Sergio Christoph · Founder & Designer