Commond via wikimedia commons alexandrite.
													
																	Light blue diamond name. 
									
	
		
	
																	The price of a 0 3 carat light blue diamond costs 15 700 on average. 
																	39 31 carats fancy deep blue flawless acquired by graff in 1984 the imperial blue is the world s largest known flawless fancy deep blue diamond. 
																	It is this substance that absorbs yellow light thus reflecting a blue color. 
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																	In the fancy color diamond book they explain that while a diamond is forming boron particles can become trapped inside the crystal lattice. 
																	What it lacks in provenance and color intensity it makes up for in size. 
																	A diamond which received a perfect 0 0 0 rating from the american gem society weighing 3 03 carats 0 606 g rough and 1 09 carats 0 218 g cut. 
																	Rothem diamonds on vimeo. 
															
													
									
	
		
	
																	Pear shaped rose cut diamond. 
																	The color of this gemstone changes depending on the source of light. 
																	Blue diamond s level of rarity often makes them a target for diamond collectors investors and enthusiasts. 
																	At 2 million per carat it would command a reserve price of 79 million. 
															
													
									
	
		
	
																	At night alexandrite appears reddish with incandescent light while usually green or blue at daytime. 
																	The price of a 0 5 carat light blue diamond is 26 280 on average. 
																	A pale blue diamond source. 
																	Alexandrite is a color changing gemstone of the mineral chrysoberyl. 
															
													
									
	
		
	
																	Stuart or holland diamond. 
																	There s a scientific cause for appearance of colors in diamonds. 
																	Fancy intense blue diamond hpht 3 carat princess cut 31854 from r. 
																	The presence of an impurity this is also true for blue diamonds.