The prices can be just half the cost of a similar ring at a big-box jewelry store. Compared to online jewelers, here's the general observation: Diamonds 1 carat and above have similar pricing, since the diamonds are certified by GIA. Diamonds under 1 carat are cheaper at Costco, since they're not certified.

Wholesalers usually offer diamonds at much lower prices than what you would pay at a branded jewelry store because overheads like distribution and marketing costs are already eliminated. This means that you are buying diamonds from the same place, at the same price, as the fancy diamond jewelry retailers do.

Jared's lab-created diamonds are graded to the same standards as our natural diamonds. That means your lab-created diamond will be accompanied by an independent laboratory report detailing its “4 Cs” - cut, color, clarity, and carat weight.

A diamond's size often depends on how the weight is distributed, which can be affected by the shape and cut of the diamond. In general, the larger the carat weight, the more expensive the diamond. Costco sells a variety of carat weights to fit any budget.