Exceptional stones, sourced with discretion

Maison BNB sources and supplies high-quality diamonds and stones for high jewelry houses, family offices, investors and professional clients, guided by the expertise and judgment of its founder, Irene.

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Who we serve

Every client is looking for something different, and every search starts from scratch.

High jewelry

Center stones and matched sets for unique pieces and collections.

Family offices

Acquisition of stones of exceptional quality, with full documentation and confidentiality.

Investors

Stones selected for quality, rarity and traceability, with clear information to support your decision.

Jewelers and general clients

Regular supply for workshops, brands and private buyers, with the same personal attention.

What we source

We specialize in high-quality stones and also supply commercial-grade material. If what you need isn't available, we keep searching until we find it.

Diamonds

Loose or in lots, to your exact specifications.

Colored stones

Rubies, sapphires, emeralds, spinels, tourmalines and more, of jewelry quality and with documented origin.

Exceptional pieces and off-market stones

Singular stones in size, color or rarity, and material that never reaches the open market.

Commercial stones

Commercial-grade material for production, series and everyday use, in quantities that suit you.

How we work

  1. Private conversationWe learn what you need, what it's for and your criteria.
  2. Selective searchWe consult our network of trusted suppliers.
  3. Detailed proposalWe present a few well-documented options.
  4. Acquisition and deliveryWe handle the purchase and insured shipping.

Irene, founder

Irene is IGI (International Gemological Institute) certified and runs a commercial jewelry brand. Her deep knowledge of stones and jewelry lets her select every piece with technical judgment and understand what each client needs, from a full collection to an exceptional acquisition.

  • Personal attention on every search
  • Confidentiality in every transaction
  • Documented origin and characteristics
  • Independent gemological certification where applicable

Let's talk about what you're looking for

Write to us and Irene will reply personally. All inquiries are confidential.

Email: irenemaisonbnb@gmail.com
LinkedIn: Irene