Sell Diamonds Online

As leading international diamond buyers, we provide a secure way to sell diamonds in as little as 24 hours. We buy your diamonds and diamond jewelry directly: no middle-man, waiting for us to sell on your behalf, hidden fees or commissions deducted.

Sell Your Items

Sell Diamonds Online

As leading international diamond buyers, we provide a secure way to sell diamonds in as little as 24 hours. We buy your diamonds and diamond jewelry directly: no middle-man, waiting for us to sell on your behalf, hidden fees or commissions deducted.

Sell Your Items

How It Works

Our selling process is fast, safe and simple.

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

Mark

Emre

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

Why Sell Diamonds To myGemma

Speed: We buy your diamonds directly, in as little as 24 hours.

Honest Price Quotes: Simply fill out our online form to receive your price quote.

Free Service: There are no costs involved, fees or commissions deducted from your final offer.

Customer Service: We pride ourselves on providing unparalleled customer service. You will be paired with one dedicated client representative throughout the entire selling process, on hand to answer any questions.

Diamond Experts: Our team of GIA trained gemologists have the expertise to correctly price your diamonds.

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

What We Buy

Unfortunately there are some loose diamonds we cannot accept.

Diamonds We Buy:

Uncertified and certified diamonds of 1ct +
GIA certified fancy colored diamonds
Designer diamond jewelry of all sizes: Tiffany, Cartier, Harry Winston and more

Diamonds We Do Not Buy:

Lab grown diamonds
Diamonds less than 1ct +
Cubic Zirconia, Moissanite
Rough diamonds, black or brown diamonds

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