Looking for a premium marble countertop from the USA? 3cm River Blue is a great choice! 3cm River Blue countertop is manufactured by the well-known Boston Granite Exchange brand and it’s a notable element of the Marble collection. Ideal for interior use, these top-tier marble countertops are perfect for elevating a variety of spaces, including basements, bathrooms, and kitchens. In a classic blue color and available in a custom size, this countertop showcases its versatility with a stunning honed finish. Browse our extensive online collection or visit our tile store in Waltham, Massachusetts and let us help you find the best countertop for the right price!