Fancy Colored Diamonds Rare Pink and Green Diamonds

Rare Diamonds.
Personally Sourced.

As your private diamond concierge, we search beyond the publicly available market to find rare natural diamonds that match your vision, quality standards and budget.

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Rough Diamond IGI Rough Diamond IGI

what we do

We source and evaluate high-quality natural diamonds through our international network of diamond producers, manufacturers and established suppliers.

Our diamond sourcing expertise includes:

  • Rare natural colored diamonds
  • Exceptional large white diamonds
  • Rough to polished diamonds
  • Traceable diamonds from diamond-producing countries
  • Diamonds not available on the open market
  • Bespoke diamond sourcing for private jewelry commissions
  • Exceptional stones for collectors and private investors

For clients interested in rough diamonds, we can accompany the entire journey – from the original rough stone to the polished diamond, supported by documented traceability and certification.

Who we work with

Private Clients
Collectors and investors
Independent jewelers
Jewelry Designers
Gemologist with Lupe Sarah Dieterle Gemologist with Lupe Sarah Dieterle

Expertise You Can Trust

Sarah Dieterle, founder of CAREDIAMONDS, is an IGI-certified Graduate Gemologist with specialist expertise in natural diamonds, colored diamonds, rough diamonds and diamond provenance, supported by first-hand insight from visits to diamond mines in Botswana and South Africa.

As a trusted partner, she personally manages each sourcing request – from defining the search criteria and evaluating suitable stones to coordinating the purchase, certification, cutting and, where required, the creation of the finished piece

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Emerald and Princess Cut Diamond Emerald and Princess Cut Diamond

An International Diamond Network

Our network extends to leading diamond-producing countries and established partners in Antwerp, one of the world’s most important diamond centers.

We works with respected diamond suppliers, including Responsible Jewellery Council members and De Beers Sightholders, selected for their expertise, reliability and professional standards.

Botswana Diamond Jwaneng Mine Botswana Diamond Jwaneng Mine

From Origin with Proof

Every diamond has a journey.

Where available, we use leading diamond traceability and provenance technologies, including Sarine, Tracr and Provenance Proof and iTraceiT, to document a diamond’s origin and its transformation from rough to polished.

This allows the provenance and individual journey of your diamond to become a meaningful part of its story.