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GEMSTONE INVESTMENT

GEMSTONE & DIAMOND CONSULTANCY

Marquis specialises in sourcing coloured gemstones and diamonds as an alternative investment solution as part of a diverse portfolio to protect wealth.

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SOURCING & PRIVATE BROKERAGE

JEWELLERY & WORKS OF ART

Drawing on our worldwide network to source client special requests in gemstones, jewellery, paintings and works of art.

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BESPOKE JEWELLERY

CREATE YOUR UNIQUE PIECE

A bespoke jewellery service focused on creating individual pieces designed for you.  

We work with you to create bespoke jewellery, sourcing new gemstones or redesigning inherited jewellery to make a stunning contemporary piece.  Whether you would like a one-of-a-kind engagement ring or special birthday present we will guide you through each step of the process from the designs, sourcing gemstones to manufactured completion.  

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COLLECTION MANAGEMENT

VALUATIONS - CURATION - CONSERVATION

Our collections management advice helps ensure your assets are protected for the future.  


We offer detailed impartial valuations for various purposes.    Working with specialist shippers and art handlers to ensure collections are displayed in the best way possible.  We work to preserve your investments and safeguard heirlooms for the next generation.