If you're shopping for Marquise Engagement Rings, look no further than Overstock.com. With over 280 items available online, Overstock has options for every budget. Browse our selection by Popular Total Diamond Weight like 1 to 1.5 Carats, .5 to 1 Carats, and Up to .5 Carats or by Top Brands like SummerRose Jewelry and De Couer. You can also discover more ways to shop our assortment by Size, Ring Style or Stone to find the perfect one. And if your order is over $45, we'll throw in the shipping for free. Whether you're searching for Engagement Rings or anything else from our Wedding Rings collection, you'll find all things home, all for less at Overstock.com.