Buying Guides

Diamond Brothers · Mayfair

Expert Answers From Our Showroom

Straightforward advice from our team on South Molton Street on buying, selling and owning luxury watches and fine jewellery, based on more than ten years in the trade.

Buying a watch
01

Is It Safe to Buy a Pre-Owned Rolex in London?

What to look for in a dealer, how authentication works and the warning signs to avoid.

Read the guide02

Authorised Dealer or Independent Dealer?

The real differences in price, availability and warranty when buying a Rolex in London.

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Do Pre-Owned Luxury Watches Come With a Warranty?

What a dealer warranty should cover, and what every Diamond Brothers watch comes with.

Read the guide04

Submariner vs Datejust vs Daytona

Which of Rolex’s best-known models holds its value best, and which suits you.

Read the guide05

Buying a Pre-Owned Patek Philippe Nautilus or Aquanaut

The key checks to make before buying one of the most sought-after watches in the world.

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Selling & finance
06

Should You Polish a Luxury Watch Before Selling It?

Why an unpolished case often sells for more, and what to do before you sell.

Read the guide07

Can You Buy a Luxury Watch on Finance in the UK?

How watch finance works, including deposits, terms and part-exchange.

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Fine jewellery
08

Bespoke Engagement Rings in Mayfair

How our bespoke process works, from first sketch to finished ring, including using your own stones.

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Have a Question We Haven’t Answered?

Speak to our team in person at 13 South Molton Street, or message us any time.

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