For colorful impact and the conferring of neighborhood bragging rights, few childhood Christmas gifts equalled the wow-factor of that classic "Box of 64". But now those crayolas have some serious grown-up competition. Our 18" necklace spills out a rainbow of faultless, lab-created gemstones, each one cushion cut for incredible sparkle and pooled within 29 oval gold vermeil bezels. A full lab-created forty-five-count-'em! -carats in all, encompassing a palette of seven colors: green, blue, white, and yellow sapphires, along with ruby, amethyst and sky blue topaz. It secures with lobster clasp.