Back in the day, due to their color consistency and flawless clarity, synthetic sapphires were considered a modern improvement over their natural counterparts, and this charming lavalière necklace, dating from the early-20th-century, is a shining example of their early usage. Measuring 1 3/4 inches long, this stunning pendant presents a circular array of the aforementioned gemstones, accented by tiny lustrous seed pearls, and culminating in a dancing dangle. The maker's mark indicates by Ehrlich & Sinnock. The newer chain measures 18 inches.