Dark version of the popular Crystal Rock in medium size. Crystal Rock is a design developed by Nina Frederikke Thomasen Jensen. The inspiration comes from the beautiful rock crystal as the name suggests. Inside the solid crystal, small bubbles can be seen, to lead your thoughts towards a glass of champagne. Crystal Rock has a fascinating iridescent effect, which makes the crystal change color depending on the angle. Each rock is unique, and as such variations in color and bubbles may vary.