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For Creators, Designers & Bespoke Commissions
The Raw Materials Archive
Bridging the untouched purity of raw gemstones with the architecture of high jewellery. Rivera provides ethically sourced, precision-cut materials worthy of the world’s finest creations.
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Bespoke Procurement
Submit a CustomSourcing Request
When planning custom mounting, stone dimensions are more important than carat weight alone. Detail your exact specifications below, and our sourcing team will consult our global network of ethical mines and cutters.
Material Procurement Guidelines
Dimensional Variance
Natural stones may vary slightly in millimeter dimensions due to hand cutting. Strand lengths listed are approximate.
Custom Orders
Custom sourcing orders and bespoke cut stones are considered final sale once production or extraction begins.
Certification
Independent lab certification (GIA, SSEF, Gübelin) can be arranged for notable loose stones prior to mounting.