"珩" meaning in Japanese

{
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "character",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese hyōgai kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the top gem of the pendants"
      ],
      "id": "en-珩-ja-character-nruvwuoj",
      "tags": [
        "Hyōgai",
        "kanji"
      ]
    }
  ],
  "word": "珩"
}

{
  "categories": [
    "Pages with 4 entries",
    "Pages with entries"
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "character",
  "senses": [
    {
      "categories": [
        "Japanese hyōgai kanji",
        "Japanese kanji",
        "Japanese kanji with on reading ぎょう",
        "Japanese kanji with on reading こう",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant transliterations"
      ],
      "glosses": [
        "the top gem of the pendants"
      ],
      "tags": [
        "Hyōgai",
        "kanji"
      ]
    }
  ],
  "word": "珩"
}