When it comes to diamond necklaces, no necklace screams elegance like a traditional diamond necklace. The classic design can feature a diamond pendant at the end and should not reach farther than the collarbone. If you are looking for a formal event type of necklace, be sure to pick only one colour. For other events, you can choose a necklace paired with other luxurious gemstones, such as emeralds, rubies, and sapphires. There is no limit when combining these gemstones with diamonds and different outfits.