Designer Sarah Hendler deals in colorful, vibrant gemstones reimagined with a modern eye. And she credits her elegant grandmothers—Ethel and Shirley—for giving her a lasting appreciation for intricate, timeless jewelry. Which explains why those pear-shaped studs and emerald-cut green tourmaline necklaces look like pieces you might find in the back of your grandmother’s jewelry box, only chicer, striking, and so very wearable.