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An elevated diamond experience.

When you experience the joy of knowing that a moment is so important that it deserves a Black by Brian Gavin®. We want that feeling of happiness to extend throughout the entire purchasing experience. You can expect an elevated level of service and attention as a Black by Brian Gavin customer.



Selecting Your Diamond

As a pioneer of the online diamond business, Brian Gavin Diamonds leverages years of experience to create the most seamless ordering process possible. Once you’re ready to select a diamond or get started on a custom Black by Brian Gavin, we offer three ways to answer your questions and initiate your project.

Set of 3 icons: a phone, paper, and diamond

General Inquiry

Simply fill out the form provided on our Diamonds page, and we’ll contact you via email within 24 hours.

Diamond Selector

Already know the criteria you’re looking for? Find your Black by Brian Gavin using our Diamond Selector, and we’ll follow up with you directly.

Give Us a Call

Many of the pieces in the Black by Brian Gavin collection will be custom cut and designed based on specific needs. If you have a vision or just a hint of an idea, we’d love to create something beautiful for you. Please call us and we’ll help you get started. And if you are in the Houston, Texas area, we can schedule a meeting with you at our showroom.

Purchasing Your Diamond

Nothing should distract you from the anticipation of a Black by Brian Gavin diamond, so we make it easy to complete your purchase.

For purchases within the USA, we accept:
Credit Card Visa, Mastercard, American Express, Discover
Online Money Transfer PayPal
Wire Transfer Safe and convenient—you’ll also receive a discount with this method.
Check or Money Order This method of payment will delay your order by 10 business days for check/money order clearance; however, you’ll receive a discount with this method.
Online Payments If your preference is to complete your transaction online, rest assured that our checkout process is protected by the most up-to-date and secure SSL encryption technology. You will immediately receive an order confirmation via e-mail.
For all purchases made outside the USA:
Wire Transfer For purchases made outside the US, we require payment that can be made through bank wire transfer only.

Affirm Financing

If you prefer to finance your Black by Brian Gavin, consider Affirm Financing. We have great confidence in the helpful team at Affirm. Working with Affirm is simple and secure—you won’t have to worry about gimmicks and catches like deferred interest or hidden fees. The total you see at checkout is always what you'll actually pay. The dedicated Affirm team is ready to answer your questions about jewelry financing and help out in any way they can.


Black By Brian Gavin® Customer Service

As a Black by Brian Gavin customer, you’ll receive the highest level of customer service. We want to make sure you’re satisfied at every point of the process. That’s why we offer a number of ways to get in touch.


You can Live Chat with us online from 8:00am CST – 7:00pm CST, or you can simply fill out our Contact form and we’ll give you a call within 24 hours.

By Phone

Call us during business hours—Monday–Thursday (8:00am CST – 7:00pm CST), Friday (8:00am CST – 5:00pm CST) at 1-866-611-4465 and we’ll help you get the answers you need, right away.

Our Process

Only a few diamonds in the world can become a Black by Brian Gavin. We do offer a select number of diamonds that are already cut and ready to ship, but if you cannot find exactly what you desire, you may opt to have a Black by Brian Gavin cut exclusively for you.

  1. Acquiring
    With five generations crafting the finest diamonds in the world, we’ve built industry relationships that stand strong to this day. When you have a specific type of diamond in mind, we always have our ear to the ground, ready to custom cut that ideal stone just for you.
  2. Crafting
    Every Black by Brian Gavin is crafted by master diamond cutters and polishers for unmatched precision, and ultimately approved by Brian Gavin and his personally trained team. Only this level of focus could result in a diamond as exquisite and vibrant as a Black by Brian Gavin.
  3. Grading
    After every Black by Brian Gavin is crafted, it is then sent for grading to the AGS (American Gem Society). When it is returned to our facility, we analyze the results to ensure that the selected diamond can be awarded the Black by Brian Gavin distinction.


Once your diamond is ready to ship, there’s nothing more important to us than making sure it gets to you safely and in a timely manner.

Within the USA

We ship FedEx Overnight complimentary within the USA. There is a surcharge for Saturday delivery should you request it. All packages are shipped to a FedEx Station and held for pick up. You will be required to present a government-issued picture ID to the FedEx agent before the package is released to you.

International Deliveries

We ship FedEx Priority International to locations outside of the US. The cost of shipping/insurance will depend on the value of the package. You are responsible for all import duties/taxes. These rates can be acquired by calling your local FedEx agent.

APO (Army Post Office) Addresses

We are proud to ship to all APO addresses via USPS registered/ insured mail at no additional charge.

FedEx Insurance

Your package is fully insured in transit. Insurance ends when you sign for the package at the FedEx Station.

After Purchase

Our commitment to satisfaction doesn’t end after you receive your Black by Brian Gavin. We’re always here, and we’re always ready to make sure you’re completely happy with your magnificent Black by Brian Gavin.

Six-Month and Yearly Check-Ins

We’ll contact you six and 12 months after your Black by Brian Gavin purchase and answer any questions you might have. If you’re in the area, stop by the Houston office for a cleaning and quick inspection.

Reach Out to Us at Any Time

Whether you’ve had your Black by Brian Gavin diamond for six days or six years, Black by Brian Gavin customers are always a priority to us. Send us an email or give us a call, and we’ll be sure to answer your questions or concerns within one business day.

Return Policy

Here are a few things you’ll need to know should you need to return your Black by Brian Gavin diamond. We will, of course, do everything in our power to ensure that the diamond you ordered meets your expectations, so please reach out to us first.

  • If you decide that you would like to return your purchase, you must inform us via e-mail before the end of the 15th day after you receive your diamond.

  • We will e-mail you with a Return Authorization Number (RAN), which must be written on the outside of the return package.

  • All packages must be returned via United States Postal Service (USPS) Registered/Insured Mail. The insurance amount should be for the amount you paid for your diamond.

  • The package must be postmarked no later than the 15th day after receipt of the product.

  • Once the package is received, it will be opened under camera and the contents will be inspected to confirm that the items are in their original, undamaged condition. If you have damaged or mislaid the certificate/report, there will be a $200 charge to have it reissued at the lab.

  • Your refund will be issued 3 to 5 business day via original form of payment. Original FedEx shipping/insurance charges will be deducted from your refund.