| 21. | The IGI school was the first to offer the practical Rough Diamond course.
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| 22. | The Kimberley Process Certification Scheme focuses primarily on rough diamonds, which resemble pebbles.
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| 23. | The bill focuses primarily on rough diamonds, which look like pebbles.
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| 24. | He was a rough diamond and never attempted to polish it.
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| 25. | That still represents about 40 percent of world rough diamond production.
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| 26. | However, the certification applies only to rough diamonds, not cut gems.
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| 27. | The bill focuses primarily on rough diamonds, which resemble pebbles.
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| 28. | Before leaving office, President Clinton banned the import of rough diamonds from Sierra Leone.
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| 29. | The Excelsior rates as the third largest rough diamond of gem quality ever found.
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| 30. | He told authorities the jewels were rough diamonds that had been purchased in Israel.
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