GIA-certified brilliant diamond set in an 18k white gold ringGIA-certified brilliant diamond set in an 18k white gold ring

500,000 GIA-certified diamonds with prices, the largest selection in Switzerland

Choosing a diamond means choosing a story. We help you find yours.

Brilliant, pear, princess, marquise, oval, radiant, cushion, emerald, or heart: from 0.50 ct to 10.99 ct, each diamond is selected for its proportions Excellent to Very Good and no fluorescence.


Founded in 2004 by a GIA gemologist, diams.com provides direct access to diamonds available on the global diamond exchange, with visible and comparable prices. Swiss manufacturing ensures a delicate and demanding consistency between the stone and its sublimation into jewelry.

 

 Why choose diams ?      Our values     Explore GIA diamonds

Overview of our collections

GIA-certified diamond solitaire ring made in SwitzerlandGIA-certified diamond solitaire ring made in Switzerland

GIA-certified diamond solitaires

The diamond solitaire is the purest form of engagement ring: a single stone, enhanced by a simple and perfectly balanced setting.

At diams.com, each solitaire is made with a GIA-certified diamond, selected for its proportions (Excellent to Very Good) and lack of fluorescence.

Our workshops in Lausanne carefully craft each setting to ensure natural comfort, lasting durability, and harmony with the stone—for an engagement or wedding ring designed to stand the test of time.

Discover our diamond solitaires 

Black Tahitian Pearl: an enigma of light and color

Born in the depths of the Pacific Ocean, the black Tahitian pearl captivates the eye like a whispered secret. 

Its deep, changing, sometimes moonlike reflections evoke a free, elegant, instinctive femininity. Natural and untreated, each pearl reveals a raw, rare, untamed beauty.

At diams.com, we select pearls with care and delight. Pearls, born of a living being, carry their light as a part of themselves.

Discover our Tahitian black pearl pendants

Natural untreated black Tahitian pearl, oriental lusterNatural untreated black Tahitian pearl, oriental luster

Meteorite jewelry, unique fragments of stars

diams.com is one of the few designers in the world to transform real meteorites into exceptional jewelry. 

Over 4.5 billion years old, these extraterrestrial materials reveal Widmanstätten patterns, evidence of their cosmic journey. 

Each piece of meteorite jewelry is unique, carrying a story from the cosmos and sought after for its rarity and symbolic nature.

Discover our jewelry from outer space

Meteorite jewelry with 4.5 billion-year-old Widmanstätten patternsMeteorite jewelry with 4.5 billion-year-old Widmanstätten patterns
GIA-certified diamond gemological expertise in SwitzerlandGIA-certified diamond gemological expertise in Switzerland

EXPERTISE JEWELRY

Gemological experts graduates of GIA identify your stones and jewels. They give you an estimate of their value.

creation or transformation of your stones or jewelrycreation or transformation of your stones or jewelry

BESPOKE

Our teams design and create bespoke jewelry. In order to satisfy you in every detail, we work with the help of 3D software.

discover the fun side of diamondsdiscover the fun side of diamonds

What Medias says about us

Forbes Magazine, TV, LeMatin, 24Heures, AGEFI, Paris-Match, and others

© 2004 - 2024 diams SA. All Rights Reserved. Kimberley Process: In accordance with United Nations resolutions, the diamonds sold on this site come from legal sources that are not involved in conflict financing. diams SA guarantees that its diamonds, to the best of its knowledge and according to the written guarantees given to it by its suppliers, are not "diamonds of the war".