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Tudor Plaque

The Heart of Oklahoma Diamond

A Search for Intensity & Perfection

RARE, EXCEPTIONAL: Celebrating a Legacy

Cut from a 38.05-carat rough diamond that was mined off-shore Namibia, Africa, the Heart of Oklahoma was polished to perfection to a very specific carat weight: 18.92 carats to celebrate BC Clark’s founding year–1892.

Internally Flawless. Fancy Intense Yellow.

The vision of a statement diamond to honor our legacy drove us to search the globe for a once-in-a-lifetime discovery. After nearly seven years, we found it and immediately knew it was the one.


For a design worthy of this diamond, we partnered with the artisans of Harry Kotlar, utilizing their signature old-world techniques and aptitude for relevant aesthetic.

Design Shaped by History

The Heart of Oklahoma Diamond is set in a one-of-a-kind Harry Kotlar Masterpiece. The design is reminiscent of the industrial revolution utilizing historical aspects dear to BC Clark’s and Oklahoma’s legacy.

Heart & Sol

The Heart of Oklahoma has a sister diamond. With its own vivid spirit, the Sol Diamond is cut from the same 38.05-carat rough diamond as the Heart. Side by side, Heart & Sol will take your breath away.

The Sol Diamond

The Sol Diamond is a 5.01-carat Fancy Yellow radiant cut diamond. Like its larger sister, the Sol Diamond was designated a Forevermark Exceptional diamond.

Unveiled on the National Stage

The Heart of Oklahoma appeared in the opening performance of the 53rd Country Music Awards in 2019. Singer Carrie Underwood wore it amongst the collective star power of Reba McIntyre and Dolly Parton.

Committed to Exceptional

The BC Clark family stands for passion for our craft and dedication to the people we have served for over 125 years.

Contact us today to learn more about the magnificent pieces in our very own collection celebrating our legacy.