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Loose gemstones have mainly two types of cuts – cabochon and faceted. Loose gemstones having a cabochon cut are cheaper as it is less labor intensive. A cabochon cut is mainly a dome like shape without any facets on top. The picture below shows loose gemstones having an oval shape cabochon cut of black 4-star diopside gemstones.
Black 4-Star Diopside loose gemstones
| Black 4-Star Diopside | Grades/ /Rate (FOB US$/crt.) | ||||||
| No | Cut | Shape | Size | Commercial | Regular | Fine | Premium |
| 115 | loose Cabochons | Round | 5/6/7/8/9/10mm | 0.25 | 0.30 | ||
| 116 | loose Cabochons | Oval | 5x7/6x8/7x9/8x10mm | 0.25 | 0.30 | ||
| 117 | loose Cabochons | Oval | 10x12/10x14mm | 0.30 | 0.35 | ||