Sell Diamond Jewelry

Whether you are looking to sell a Tiffany engagement ring or diamond Cartier Love bracelet, we are here to help. We buy your diamond jewelry directly, in as little as 24 hours. Our service is free of charge with no middleman or fees deducted.

Sell Your Items

Sell Diamond Jewelry

Whether you are looking to sell a Tiffany engagement ring or diamond Cartier Love bracelet, we are here to help. We buy your diamond jewelry directly, in as little as 24 hours. Our service is free of charge with no middleman or fees deducted.

Sell Your Items

How It Works

Sell diamond jewelry online in as little as 24 hours to myGemma.

With free shipping and insurance, our streamlined selling process is quick, safe and easy.

1. Complete the online form

Don’t worry, it’s easy.

Step 1
Step 2

2. Receive your price quote

We will contact you via phone or email.

3. Free, fully insured shipping OR schedule an appointment

We provide free, fully insured shipping to send your items in for a final price. If things don’t work out, we send your items back to you free of charge and fully insured. There is never any obligation to sell.

You also have the option to schedule an in person appointment at our offices in NYC or London.

Step 3

4. Receive your final price

Accept our final offer and we wire the money to you, or mail a check if you prefer. It’s that simple.

Sell Your Items
Anqi

Anqi

Mark

Mark

Emre

Emre

Zac

Zac

Talk To A Real Person

Are you on the fence? Have a question? Need some advice?

We're always here to help. Send us a message.

Email Us Call Us

How Much Is My Diamond Jewelry Worth?

Various factors are taken into consideration by expert jewelry buyers when pricing your designer jewelry. These include: brand, material, condition, market demand and more. To get your bespoke price quote, simply click the button below.

Sell Your Items

Our Luxury Experts

Louise

Louise Lieblich

Head of Diamonds & Jewelry

Tom Pozsgay

Tom Pozsgay

Head of Watches

Maya Ali

Maya Ali

Head of Handbags

Read What Our Customers Have Said

5 stars

These folks redefine luxury and customer service. I used to buy/sell to Fashionphile, The RealReal, and Instagrammers all the time, and now I'm a convert to Mark and his team. They've invested hard in a great program while retaining that small business touch and speed.

- A.Y. NOVEMBER 2022

5 stars

Mark was highly effective. He assisted me in an honest way, sending me a quote after evaluating my handbag photos. Once I accepted the price, he emailed a shipping label to me quickly and got the job done with high efficiency. Thank you!

- M.I., APRIL 2023

5 stars

The process was super easy and transparent. They gave us an offer range and stuck by it. We had our money less than 24 hours after we accepted the final offer.

- A.R., JUNE 2023

5 stars

It was a smooth and fast transaction. Highly recommend.

- M.C., JUNE 2023

5 stars

Very professional with their communication and fast with paying for my item they purchased.

- R.F.. JULY 2023

Read All Of Our Reviews

Brands We Buy

We buy a wide array of diamond jewelry, including engagement rings, diamond bands, tennis bracelets and more, from brands such as:

  • Cartier
  • Van Cleef & Arpels
  • Bvlgari
  • Tiffany & Co.
  • Chopard
  • Graff
  • David Yurman
  • Harry Winston
  • Boucheron
    • And much more.

Join The Club

  • For every sale: you receive loyalty points worth 5%
  • For every purchase: you receive loyalty points worth 5% towards your next transaction

You’ll only pay sales tax on the difference (between the store credit and the purchase price).

Get Started
loyalty program

Our Offices

New York

535 5th Avenue, 11th Floor,
New York, New York
10017, USA

London

Berkeley Square House
Berkeley Square, Mayfair
London, W1J 6BD, UK

Birmingham

212 JQ Modern
120 Vyse Street, Hockley
Birmingham, B18 6NF, UK