Harrows Imperial Diamond darts are visually incredible and technically unrivalled. Imperial Diamond 90% is the result of months of development at Harrows HQ. This stunning 90% tungsten dart showcases exceptional machining capabilities; a truly unique product. They are made from the finest injection moulded 90% tungsten and have recessed diamond cuts along the length of the barrel along with silver grip protrusions. They are finished with tough black titanium nitride and eye-catching gold coatings.