Once you have a handle on the Four Cs, the next question is style. Diamond necklaces span an enormous range of designs, and understanding the most popular silhouettes will help you match the piece to its intended purpose — and to the person who will wear it.
A solitaire pendant is the most enduringly popular choice. A single diamond — round brilliant, oval, or pear-shaped — suspended from a fine chain is effortlessly versatile. It works with a casual weekend outfit and a black-tie gown in equal measure, which makes it an ideal everyday piece and a safe choice when you are buying for someone else. A halo pendant adds a ring of smaller diamonds around a central stone, dramatically amplifying the perceived size and sparkle for its price. For those who want something truly lavish, a tennis necklace — a continuous line of identically matched diamonds encircling the neck — is the pinnacle of diamond jewellery. It is a piece that genuinely needs no other jewellery to complete a look.