An emerald necklace typically features emerald gemstones, which are known for their vibrant green color. The stones are often set in precious metals such as gold, white gold, or platinum, creating a striking contrast between the green of the emeralds and the luster of the metal. Emeralds can vary in size, shape, and cut, with popular choices being oval, round, or cushion cuts.

The necklace might consist of a single emerald pendant or several emerald stones arranged in a pattern along the chain, sometimes interspersed with diamonds or other complementary gemstones. These necklaces are often seen as symbols of elegance, sophistication, and luxury, and they can range from simple, minimalist designs to more elaborate, ornate pieces.

Emeralds themselves are highly valued for their rich color, and the quality of the stones—such as their clarity, color intensity, and cut—can significantly influence the overall beauty and price of the necklace.