Two earrings supposedly from the Regency era (both ca. 1810), although they look rather earlier to me! Particularly the second example. Still, that first pair would be so easy to find in modern stores as an easy solution to the “period look”!
Louis Vuitton Joaillerie boucles d'oreilles Voyage dans le Temps http://www.vogue.fr/mode/shopping/diaporama/cadeaux-de-noel-bleu-nuit/10911/image/650933#louis-vuitton-joaillerie-boucles-d-039-oreilles-voyage-dans-le-temps
Aquamarine Bracelet in 14k White Gold only $1,995.00 - Aquamarine Jewelry March Birthstone
Blue jade faceted necklace set with kundan balls.
Bounkit | Gold-plated, turquoise and quartz clip earrings |