Micro mosaic antique jewellery: The origin of micro mosaic has been traced back to the times of Caesar. Glass to which metal oxides have been added to give color was first heated. This was then pulled into strands. The strands were cut into small pieces called ‘tesserae’ or mosaic. The mosaic pieces were so small that they are barely visible without magnification. Different colored mosaics were used to make images, portraits. These were then set in jewellery. The Italian masters of this craft were known to create scenes with as many as 14,000 mosaics per square inch. The dawn of the industrial age also brought about the demise of this wonderful craft. The mosaics used in the scenes became larger and the finishing cruder.