Rose de France pendant w/diamonds on a gold chain

Eighteen inch two tone yellow & white gold Roman Belcher chain, (1.95 grams of 9k gold) with the pendant being 2.04 grams of 10k rose gold. The stone is light lilac/pink Rose de France amethyst, (5.20 carats) from Brazil. There are also 20 tiny round diamonds totaling 0.10 points from Africa. Certificate of authenticity comes with purchase. Dainty and feminine.