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Source a piece

At Avant Garde, we specialise in sourcing rare luxury pieces through our global network of trusted dealers and collectors.

If you haven’t found what you’re looking for on our website, simply submit a request and our team will actively search for the piece on your behalf.

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Sell a piece

If you are considering selling your item, simply submit the details through the form below. Our team will review your request and get in touch with you to discuss the next steps.

Authenticity and documentation may be requested during the evaluation process. All submissions are handled with discretion and professionalism.

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Sold outPatek Philippe - Nautilus 40mm 5711/1R-001

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5 Carat Oval Lab Grown Diamond Ring
5 Carat Oval Lab Grown Diamond Ring Sale price$6,155.00 USD
3 Carat Round Diamond Stud Earrings
3 Carat Round Diamond Stud Earrings Sale price$5,471.00 USD
Sold outPatek Philippe - Nautilus 40mm 5711/1R-001
View product
5 Carat Oval Lab Grown Diamond Ring
5 Carat Oval Lab Grown Diamond Ring Sale price$6,155.00 USD
3 Carat Round Diamond Stud Earrings
3 Carat Round Diamond Stud Earrings Sale price$5,471.00 USD
View product

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Top 10 Rolex Watches to Invest in 2026

Top 10 Rolex Watches to Invest in 2026

In recent years, luxury watches have evolved beyond accessories into highly sought-after investment assets. Among all brands, Rolex continues to dominate the market thanks to its timeless design, s...

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About

Our journey began in 2018 in London with a dedication to making rare and timeless treasures accessible to connoisseurs worldwide. Entering the world of second-hand luxury, we set out to connect discerning buyers with the finest pieces, offering a curated selection of iconic watches, handbags, and fine jewellery that embody heritage, craftsmanship, and enduring value. 

Our expertise and dedication led to remarkable growth, with over 100 luxury assets sold each month — both online and in person — while welcoming clients to our lounge office in the heart of Mayfair, London and Dubai. Along the way, we built trust, established lasting relationships, and earned a reputation for delivering unparalleled value.

Today, as Avant Garde, we are proud to showcase what we do best: sourcing the most valuable luxury items and providing you with accurate, transparent insights into retail and market prices.

Our mission is clear — to ensure that every choice you make brings the utmost value, driven by our unwavering professionalism and commitment to excellence. We believe that luxury is an art — an investment in heritage, craftsmanship, and enduring beauty. 

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