Blue Nile Pearl Jewelry: The pearls in Blue Nile Akoya cultured pearl jewelry must have high to medium luster, and they must be mostly round in shape, with smooth surfaces and no noticeable blemishes. Since color and size are the most important features of Tahitian cultured pearls, Blue Nile pearls feature high to medium luster, they must be mostly round in shape, and have smooth to lightly spotted surface markings. Even Blue Nile Freshwater cultured pearl jewelry features white pearls with high to medium luster, round to slightly off-round, good uniformity, and smooth to lightly spotted surface markings.

Blue Nile Platinum Jewelry: You'll find Blue Nile offer only the strongest, most durable jewelry grade platinum. Also, in all set engagement rings, each loose diamond is set with the strength and security of platinum prongs. Blue Nile Gold Jewelry offers fine 18k gold for more beautiful gold color than 14k, but more strength and durability than pure, 24k gold. Blue Nile may offer jewelry with 14k gold accents in instances where strength is essential, like in hinges, clasps, or earring posts. Blue Nile Silver Jewelry uses only the finest sterling silver stamped with a mark of purity. [ Source: www.bluenile.com ]