श्यामं दोङ्गकम् ॥ कZ_०२.११.५८ ॥
śyāmaṃ doṅgakam
தோங்கக வகை ச்யாமம் (கருமை/கருநிறம்) ஆகும்.
Short, unambiguous descriptors act like an inspection manual—reducing discretion and disputes in grading and valuation.