This one-of-a-kind necklace by Karin Jacobson features a beautiful rounded triangle-shaped montana agate cabochon. For an added sparkle, there is a round brilliant cut diamond accent just above the stone. The 18k yellow gold prongs wrap around to the open back setting of the stone. Made of 18k yellow gold and oxidized silver, the pendant measures 1" tall including the bail and 0.63" at the widest. It comes with an adjustable oxidized sterling silver 1.5mm cable chain that can be worn at both 16" and 18". Handcrafted in US.