This plant is described by the vendor as:" KINKUJAKU is valuable variety which has tiger stripe on small foliages called bean leaf. Usually bean leaf variety with variegation is very very expensive like RYOKUHONOSHIMA ($2000) or KINKIRIN ($15000) etc. But KINKUJAKU is still reasonable and good to start with. To make them produce nice gold tiger stripe, you should give them blight light enough. New leaf come up with solid green color and will produce tiger stripe as getting old. (This feature is called NOCHI-HAZE) The variegation is the most important part for Fukiran. That is why lightning is very important issue for all variegated variety. KINKUJAKU's tiger stripe is called NORI-FU which means variegation appears only on surface. Have great feature in this adorable appearance" (I'm not correcting anything.)
We have discussed before the light requirements of Neofinetia as it relates to variegation. Some variety requires less light while some others, like this Kinkujaku require a lot of light. I own this plant, but it is solid green with very faint tiger stripping. It is in a western facing window and gets a lot of bright light, but maybe it needs a longer duration?
This plant is up for auction on eBay. It has been grown in a lot of light.
It is fascinating to be able to manipulate a plant's appearance by changing light levels.