Platinum’s Curidas Stone Iolite fountain pen evokes its namesake in blue-violet tones, with a pearlescent coating that shifts as the light changes.
Iolite gives this finish its blue-violet palette. The gemstone changes color with the viewing direction and is linked in legend to Viking navigation. On the pen, a pearlescent coating creates the shifting reflections across the ABS resin barrel and front section, accented with chrome details.
The limited edition celebrates 60 years since Platinum introduced the Knock, its first retractable fountain pen, in 1965. Curidas returned to the idea in 2020; the anniversary edition adds these gemstone-inspired colors to that history.
Press the rear button to extend the stainless steel nib and again to retract it into the Nib Pocket. This small chamber has a soft seal to limit moisture loss between uses. The pen takes cartridges or a converter for bottled ink.
Made in Japan, the pen has a length of 152.7 mm, a barrel length of 140.5 mm, and a barrel width of 13.8 mm. Its weight is 24 g.
The blue-violet palette refers to iolite, a gemstone that changes color with the viewing direction and is associated in legend with Viking navigation. The pen’s reflections come from a pearlescent coating over ABS resin.
The edition marks 60 years since Platinum introduced the Knock, its first retractable fountain pen, in 1965.
Press the rear button to retract it into the Nib Pocket. A soft seal around the small chamber limits moisture loss; another press extends the nib for writing.
Yes. It accepts a converter for bottled ink as well as ink cartridges.
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