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Cleveland

Bluestone Trading's CEO, RB Grampp Sr., examining a diamond, held in tweezers through a jeweler's loupe.
Bluestone Trading’s Founder, RB Grampp Sr.

RB Grampp Sr., CEO, and founder of Bluestone Trading Company Inc., age 74, grew up in Pepper Pike, Ohio. He was an entrepreneur for as long as he can remember, from optimizing his paper route at 12 years old to starting Bluestone Trading, an international diamond wholesale organization that has grown to include his family.

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Jeweler checking size of diamond
Lab-Grown Diamond Screening

Bluestone Trading Company Inc. is now offering lab-grown diamond screening for free as a service to fine jewelry and diamond retailers, pawnshops, and probate, estate and trust attorneys nationally.

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