This is an interesting concept, a unique variation from Swarovski. The grey crystal contains a precision formed bubble made by injecting air into the crystal as it forms. The ingeniously crafted design brings to mind frozen water, with mysteriously encapsulated air bubbles forming a perfectly geometrical, flower-like shape within. It gives a nice experience of intriguing depth. Measuring 12mm square this is a joyful piece in which I have allowed the material to speak for itself. Playful, airy and unobtrusively graceful.