Certified Diamond Engagement Ring and Band Bridal Set, 18K Yellow Gold (1 3/4 cttw, Round, H/SI1) Brillianteers offers a 30 day return policy on all of its products. Free Worldwide Insured FedEx shipping. We offer FREE ring resizing - rings are available in all sizes. We only sell 100% Natural, un-treated , conflict free diamonds. We commit to provide you with the Best Possible Value for your Money.