Colours and markings vary between crystals. You are purchasing the Grape Agate Sterling Silver Pendant from Blue Turtles Silver & Stone, pictured.
About Grape Agate Crystals
Grape Agate, or Botryoidal Purple Chalcedony, has only been discovered recently. Botryoidal means that a crystal has little 'globes' that have formed naturally and resemble a bunch of grapes.
This is a crystal for stability, security and self-confidence and is an awesome crystal to use whilst mediating.