Find a Diamond Solitaire Pendant at Layla Diamonds. Look at the 1 carat diamond necklace styles, too. You can choose something that feels simple or more dressed up. You might also like a lab grown diamond solitaire necklace. If you want a softer style, check the Heart Solitaire Necklace. It is made for romance and special memories. Pick a piece for an event or choose it as a gift. These pendant designs mix classic charm with a fresh edge.