With autumn just around the corner jewelry designers have created their fall collections using rich hues and easy wearable styles that effortlessly accentuate soft cashmere sweaters, your favorite Burberry scarves, and supple suede skirts. Here is a look at some of our favorite designers and their glittering visions for the new season. LUCA JOUEL This design house hails from Australia. The effortless elegance of the collection is achieved by designer Tereena Lucas using only ethically sourced jewels that spotlight brilliantly against the rich golds that often boast unusual and intricate finishes. A portion of all proceeds are donated to the…