A modern heirloom. Introducing our take on a traditional style. Whether you wear yours or a loved one’s, a birthstone necklace is an easy way to add color and meaning to your look. This birthstone necklace features a 14k gold chain and diamond detail and makes for a perfect, personal gift. Blue Topaz is December's birthstone. Product Details Diamond: 0.01 total carat weight, 1.3 mm GH SI1-SI3 Blue Topaz: 0.15 total carat weight, 3 mm genuine blue topaz 14k solid gold 16" chain + 2" extender. Adj 14k Gold Birthstone Charm Necklace, Delicate Blue Topaz Birthstone Jewelry, Fine Jewelry Birthstone Pendant Charm Necklace, 14k Gold Birthstone Pendant Jewelry, Classic Charm Necklace With Birthstone Pendant, Classic Birthstone Pendant Charm Necklace, Yellow Gold Birthstone Charm Necklace, 14k Gold Necklace With Round Birthstone Pendant, 14k Gold Birthstone Necklace With Bezel Setting