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Introducing, The Heart of Oklahoma Diamond

The largest internally-flawless Forevermark Exceptional Diamond ever cut.

We are thrilled to finally unveil The Heart of Oklahoma Diamond.

The Heart of Oklahoma is an 18.92 carat, extremely rare diamond graded internally flawless, fancy intense yellow. But it means so much more to us at BC Clark.

Over seven years ago, Coleman and Mitchell Clark set out to find a diamond worthy of honoring the BC Clark legacy and the state that has done so much for this 127-year-old family business. After searching the globe, the Clarks finally discovered this once-in-a-lifetime diamond.

Cut from a 38.05-carat rough diamond that was mined off-shore Namibia, Africa, it was polished to perfection to a very specific carat-weight: 18.92 carats to celebrate our founding year–1892.

We have been in the diamond business for 127 years. It was very important to us to find a diamond that would not only celebrate our company’s longevity and history but also the people of Oklahoma. This diamond’s color is as intense as an Oklahoma sunset and as faceted and spirited as our people.

When we saw it, we simply knew, this is The Heart of Oklahoma.

After being cut and polished in New York City, an excessive certification process followed. Eventually, it was designated as a Forevermark Exceptional Diamond and is the largest internally-flawless Forevermark Exceptional Diamond ever cut, according to Forevermark, a De Beers company.

Less than one percent of all diamonds are eligible to be Forevermark diamonds. Only a fraction of these is considered for the Forevermark Exceptional Diamonds Collection, as each Exceptional Diamond must adhere to strict standards of quality and ethics, and exceed a certain carat-weight.


The Heart of Oklahoma has a sister diamond. The Sol Diamond is a 5.01-carat Forevermark Exceptional Diamond cut from the same rough diamond.

The diamonds were revealed to the public today at our downtown store. People may view the diamond, tomorrow, Saturday, Sept. 14 from noon to 5 p.m. at BC Clark’s Northpark Mall location.

Harry Kotlar has been commissioned to craft both diamonds into custom-designed rings.
We chose to partner with the Harry Kotlar company because, like us, they are a legacy company and understand that this is more than a diamond to us. They are also one of the most highly-regarded artisans in the industry, combining relevant design with old-world craftsmanship.

We are proud and excited we were were able to bring this once-in-a-lifetime discovery to the people of Oklahoma, and share a diamond worthy of being called The Heart of Oklahoma with you, our customers and friends.

Experience the diamond at TheHeartOfOklahoma.com.

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