- Original: יהלם - Transliteration: Yahalom - Phonetic: yah-hal-ome' - Definition: 1. a precious stone (known for its hardness) a. perhaps the jasper, onyx, or diamond - Origin: from H1986 (in the sense of hardness) - TWOT entry: 502b - Part(s) of speech: - Strong's: From H1986 (in the sense of hardness); a precious stone probably onyx: - diamond. Total KJV Occurrences: 3 • diamond, 3 Exodus 28:18; Exodus 39:11; Ezekiel 28:13