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  A gemstone is a mineral, rock or petrified material that when cut or faceted and polished is collectible or can be used in jewelry. A valuable (colored) gemstone is prized especially for its great beauty, rarity , size , color, aesthetics , market supply, popularity of a stone, market mechanisms etc. Traditionally, common gemstones were classified into precious stones (cardinal gems) and semi-precious stones. The former category was largely determined by a history of ecclesiastical, devotional or ceremonial use and rarity. There are nine gemstones under Precious Stones Category , i.e. , DIAMOND (Heera) , EMERALD (Panna) , RUBY (Manak) , BLUE SAPPHIRE (Neelam) , YELLOW SAPPHIRE re (Pukhraj) , CORAL (Moonga) , PEARL (Moti) , HESSONITE (Gomed) , CAT’S EYE (Lahsuniya). |
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