Nichia E17A and E21A just got a smaller brother. 
http://www.nichia.co.jp/en/product/led_product_data.html?type='NFSWE11A'
CRI80 or 9050, CCT 2700-5000K.
Unfortunately on paper it looks worse than Oslon Pure. It’s larger and nevertheless rated to handle only half the current.
Can I eat it? It looks like a lemon cake.
These are 1/4 the area of an E21A, but have a little less than 1/4 the rated current. Given that it won’t have remarkably high intensity, it doesn’t seem like a flashlight-oriented emitter, but perhaps it would be good for an application like a lantern where a larger number of smaller emitters can be preferable for having an even light distribution, especially if doing tint mixing.
I’m trying to imagine assembling 1.1mm square emitters by hand. In addition to being small, Nichia’s CSP emitters don’t have any protection over the phosphor. Several people have damaged E21A phosphor layers with their tweezers.
I bet Nichia will get a lot of customers for these for high CRI strip lighting, though.
Don’t think they’ll much sense even in a lantern. Aren’t the E21As already quite small?