Select Your Metal: Sterling Silver

Have a question about Monique Lhuillier Bliss Marquise-Cut & Round-Cut Lab-Grown Diamond Bar Necklace 7/8 ct tw Platinum-Plated Sterling Silver 16"?
Need help with this Monique Lhuillier Bliss Marquise-Cut & Round-Cut Lab-Grown Diamond Bar Necklace 7/8 ct tw Platinum-Plated Sterling Silver 16"?