Hand-crafted using natural aquamarine, these blue crystal necklaces are truly one-of-a-kind.The aquamarine crystals are polished, have a rectangular shape to them and are made from genuine aquamarine crystals. Some of the crystals have been heat treated, which means they've been put under a heat treatment to achieve a brighter, deeper colour than they'd have naturally.I use real, freeform aquamarine crystals so they may vary slightly in colour, size and shape.The necklace is adjustable to fit 18-20 inches long and fastens with a spring clasp.Your jewellery has been designed and handmade with love using genuine gemstones and crystals. It is packaged in a beautiful jewellery gift box along with a fact card telling you all about the crystal and its meaning. Crystals have inclusions, which appear naturally in gemstones. Sometimes they can be accidentally mistaken as cracks, but they're actually minerals that have been trapped within the crystal as it has grown. Inclusions are perfectly natural and make each individual crystal unique. They're part of the crystal's natural beauty and history.