How to say "facet" in Japanese

• 切り子きりこ
  nounThe angular facets cut into glass, and by extension a facetted object itself — a piece of cut glass. The word that fits cut-glassware, not gems.
• ファセット
  nounA facet of a cut gem — one of the small polished faces of a diamond or other stone. The loanword used in jewelry and gem contexts.
• 小面しょうめん
  nounAlso names the facets of a cut gemstone, as a Japanese word rather than the loanword: the small flat faces of a cut stone, found in gem and jewelry contexts.
• 磨面まめん
  nounReally means a polished surface — a face made smooth by polishing; 'facet' is at best a marginal sense. Seldom the word you want for a facet; think polished surface.

For a cut gem's facets use 「ファセット」 or 小面; 「切り子」 is for the facets of cut glass and facetted glass objects; 磨面 really means a polished surface and is only marginally 'facet'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 切り子きりこfacet
• ファセットfacet (of a gem)
• 小面しょうめんfacet
• 磨面まめんpolished surface
• 面めんaspect
• ところpoint