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据公开文献报道，在90年代，印度钻石切磨师的人数估计在60万～80万为。根据印度每年成品钻的数量以及加工这些宝石的速度，我们估计印度约有40万个专职切磨师（主要在现代工厂里），每年一般可以抛磨大约7．5亿颗钻石。公开文献对切磨师人数的过高估计也许包括60万个家庭手工业中的兼职切磨师，其中有些平均每天只切磨一颗钻石；专职切磨师仅约20万人。以90年代中期印度抛磨钻石的总量（重量）和估计的平均尺寸（2.5pt或0．025ct）为基础，提出了一个假设的钻石产品尺寸。我们推测，占重量约80％和占总量96％的成品钻小于10pt（0．01ct）。印度的成品钻为3pt（0.03ct），约占重量的42％，占总量的65％（约5亿颗）。
According to public reports, in the 1990s, the number of Indian diamond cutters was estimated at 600,000 to 800,000. Based on the annual quantity of finished diamonds in India and the speed with which these precious stones are processed, we estimate that there are about 400,000 full-time cutting masters in India (mainly in modern factories) that typically polish about 750 million diamonds a year. Overtime estimates of the number of cutters in the open literature may include part-time cutters in 600,000 home-based handicrafts, some of which cut an average of only one diamond per day and only about 200,000 full-time cutters. Based on the total amount of polished diamonds in India in the mid-1990s and the estimated average size (2.5pt or 0.025ct), a hypothetical diamond product size was proposed. We hypothesize that finished drills weighing about 80% and 96% of the total are less than 10pt (0.01ct). Indian finished diamonds are 3pt (0.03ct), accounting for about 42% of the weight, or about 65% (about 500 million) of the total.