Explore our lab grown marquise cut diamond collection at Ibling Jewels, featuring IGI certified stones for maximum visual surface area per carat. Its slender boat-shaped silhouette creates a bold face-up profile and a flattering finger-lengthening effect. Whether you are building a custom marquise engagement ring, or sourcing matching loose diamond pairs for a party wear earrings, tennis bracelets, or any custom classic jewelry piece, our collection offers unbeatable pricing. Choose your favorite stone, pair it with our 10K/14K/18K gold or platinum mountings, and create an unforgettable custom birthday or anniversary gift. Shop now and find your favorite piece of marquise diamond.