極ごく製せい

noun-modifying (irregular)

finest quality; specially made

Used prenominally to describe something made with the utmost care and quality, often implying a special or custom production.

• これは極ごく製せいのチョコレートです。

  This is a specially made chocolate of the finest quality.

• 極ごく製せいの万まん年ねん筆ひつを贈おくり物ものに選えらんだ。

  I chose a specially crafted fountain pen as a gift.