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Make an unforgettable statement of love and commitment with 4 CT lab-grown diamond engagement rings from The Karat Store - stunningly crafted in 14K and 18K gold, showcasing a magnificent 4-carat lab-grown diamond radiating brilliance and luxury. Ethically sourced and environment-friendly, our lab-grown diamonds offer exactly the same quality of mined diamonds, so these rings can be a perfect and responsible choice for your forever moment.