Made to live in.
Designed to last.
Modern jewelry with considered proportions, luminous finishes and an effortless point of view.
Everyday icons.
Quiet confidence,
beautifully considered.
FOUNDATION is built around the pieces that make an outfit feel complete: a smooth hoop, a sculptural ring, a chain that layers without trying too hard. Clean lines, balanced proportions and an honest approach to care make every piece easy to return to.
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FOUNDATION / 01
Find your finish.
Details matter.
Modern essentials
Clean silhouettes and balanced proportions designed to work across seasons.
Considered finishes
Polished gold-tone and silver-tone surfaces selected for a luminous look.
Easy to layer
Pieces designed to mix, stack and become part of your everyday uniform.
Clear care
Simple guidance helps you protect the finish and enjoy each piece for longer.
The pearl,
reconsidered.
Wear it close, layer it with a chain or let it soften a sharp collar. Sienna brings the unmistakable glow of pearls into the everyday.
Shop SiennaQuestions, answered.
What are FOUNDATION pieces made from?+
Material details are listed on every product page. The collection includes stainless-steel-base pieces, gold-tone and silver-tone finishes, imitation pearls and cubic-zirconia-style accents.
How should I care for my jewelry?+
Remove jewelry before bathing, swimming, exercise or applying fragrance and lotions. Wipe it with a soft dry cloth after wear and store each piece separately in a dry place.
When will my order arrive?+
Delivery timing depends on destination. Tracking information is emailed after dispatch so you can follow the order from shipment to arrival.
Can I return an item?+
Eligibility, timeframes and instructions are set out in the return policy linked in the footer. Contact customer care before returning an item so the team can help.