Smoky Topaz earrings and necklace set

Beautiful, brand new necklace and matching earrings set from Gold Coast jewelry. The necklace pendant has a semi-precious Smoky Topaz center stone surrounded with brilliant crystals. The earrings are posts with round backing (as per photos). The necklace is 18” long with 3” extension (per photos). I’m not sure of the metal content. Similar listings claim white gold plated. I will just call it silver tone. The chain is very lightweight. The earrings are standard post length with a single marquise-cut Smoky Topaz on each. The earring backings are the rounded type to help keep the earrings in place and support the weight of the Topaz. Measurements of earrings and pendant per photos. I received this beautiful set as a gift years ago but I’ve never worn it. Removed from box only for photos. Very simple and elegant.