Can I customize or make a small change to a piece of jewelry on your website?

Yes. We can customize any piece of jewelry from our website to personalize it for you. To make a piece specific to your desires, customization of a piece of jewelry may lead to longer production times than stated on a product page.

Can I order a custom ring setting and use a diamond or gemstone that I already have?

We can produce a setting to fit a diamond or gemstone that you already have as well as mount that diamond or gemstone to your specific needs.

How are orders placed and processed online?

Orders taken from our website are processed with a debit card, credit card or bank transfer. Once the item is produce, it will be shipped to the address provided by the customer at the time of purchase.

How do I place an order over the telephone?

You can place an order from us by calling our toll-free line, 877.766.2757.

How do I know what my ring size is?

We can assist you by sending you a complimentary ring sizer to help you find your ring size. You may also visit our ring sizer page to download a PDF file to help you properly size your finger.

Which methods of payment do you accept?

We accept payment all major credit and debit cards including VISA, Mastercard, Discover and American Express. We also accept payment through bank wire.

Do you offer layaway or financing on your jewelry pieces?

If you love a specific Mark’s Diamonds piece, you may lay that item away or qualify to purchase through Wells Fargo financing.

Do I have to pay sales tax on my purchase?

Orders shipped to Colorado addresses will be subject to the standard Colorado State sales tax at 7.65%.


What are the options for shipping at Mark’s Diamonds?

Once your order is placed, verified, and complete, we will ship your item to you priority overnight shipping via FedEx. For orders placed on Friday or over the weekend, items will be shipped on the following Monday.

What steps do you take to ensure that I receive what I ordered?

After your order is taken, our Quality Assurance team takes the time to assess each piece it made to its exact specifications. Once an order is complete, our QA team will package your piece along with an appraisal, polishing cloth, and silk travel bag.

May I have item shipped internationally?

At Mark’s Diamonds, we only ship items to the United States.

What is your return policy?

We have a hassle free 30-day return policy. Click here to visit our return page for instructions on how to return your Mark’s Diamonds piece.


How do I know I am receiving the diamond that I ordered?

When you purchase a diamond through Mark’s Diamonds, the diamond will come with a corresponding lab report complete by a certified gemologist detailing your diamond’s unique characteristics. These unique characteristics will also be detailed on your Mark’s Diamonds appraisal.

Do you offer synthetic or lab-grown diamonds?

No. Mark’s Diamonds offers 100% natural and conflict free diamonds.

Can I purchase a loose diamond? Can I purchase a loose gemstone?

Yes, we can help you to find the perfect loose diamond or gemstone to fit your needs.

Can I order my piece of jewelry in alternative metals such as rose gold, palladium, platinum, etc.?

We offer a variety of alternative metals. If there is a specific metal type that you would like to see a piece of jewelry in, please call us at 877.766.2757.

Can I see a piece of Mark’s Diamonds jewelry in person?

Yes! You can make an appointment to visit our showroom in Denver, Colorado and see any of our beautiful pieces of jewelry.

Long-Term Care

Can I get my Mark’s Diamonds ring re-sized after I have purchased it?

With your ring purchase, we offer one free re-sizing within 60 days of your original purchase. 

May I upgrade my Mark’s Diamonds ring?

We can assist you in upgrading your Mark’s Diamonds piece by contacting our Customer Service Department at 877.766.2757.

What else is covered by the Mark’s Diamonds warranty?

When you purchase a piece of jewelry with Mark’s Diamonds, you are eligible for a cleaning, re-polishing, prong checking, rhodium plating, re-sizing and small diamond replacement as part of our warranty guarantee. For more details, contact our Customer Service Department at 877.766.2757.

What do you recommend for jewelry insurance?

All of your Mark’s Diamonds jewelry pieces will be accompanied by a gemologist certified appraisal. We work with Jeweler’s Mutual insurance when it comes to insuring one-off jewelry pieces. You may also place your jewelry on your home-owner’s or renter’s insurance policies.