Promotional 8.5cm Optical Crystal Stand Up Diamond Paperweight The 8.5cm Optical Crystal Stand Up Diamond Paperweight would make the perfect memento for any special occasion. Made from Optical Crystal this glass offers a stunning clarity with a generous surface area which is ideal for personalisation. With a variety of decoration techniques available including sandblast sngraving and full colour printing this item is extremely versatile and cost effective. The paperweight is supplied in its very own presentation box making it extra special as a gift or reward.