Kate has these Monica Vinader earrings in green onyx and they come in an aquamarine version. In 18ct-gold vermeil on sterling silver, they give a similar look to the princess's more expensive pair.

Blue Nile Trio Oval Blue Topaz Bracelet In Sterling Silver Shop the best Blue Nile Valentine’s Day jewelry gift ideas for under $1,000. $375 at Blue Nile (Save $375) ...