Our Onyx necklaces make a striking neck-stack. We've paired our 16" glossy black onyx Cubo with our 18" velvety black Solo. You can choose to wear them as separates or as a set. You simply can't go wrong with this elegant versatile gift. Product details:Metals: Solid 9 karat yellow gold (375) chain.Necklace length: 40cm/16” Cubo, 45cm/18" Solo.Necklace clasp type: Bolt ringGems: Our bold black onyx is made from agate using techniques dating back as far as the Roman empire. The glossy onyx cube is polished and the velvety sphere comes in a soft matte finish. Gem size: 6mm smooth cube bead, 8mm frosted round bead. *Please note that these are natural materials and no two beads are identical. There are likely to be slight differences in shape and colour from the necklace shown in the photos. Packaging: Our jewellery is carefully packed in our soft-touch branded gift boxes, wrapped in tissue and posted in a sturdy bubble envelope. We include a branded bag for you to present your gift in on the day. Shipping: All items are shipped Free with worldwide shipping and insurance via DHL or FedEx. Thank you for visiting. Please contact us with any questions. Kind regards,Nicole