मणिमध्योऽर्धमाणवकः ॥ कZ_०२.११.१९ ॥
maṇimadhyo 'rdhamāṇavakaḥ
Um colar com uma gema central é um “ardha-māṇavaka” (um subtipo de grau intermediário dentro da classificação māṇavaka).
To encode intermediate quality/value bands so that pricing, wages, and procurement can match finer differences in material/workmanship.
It reduces ambiguity—sellers cannot pass a lower grade as a higher one when categories are officially defined.