Let s look at how some of these standard carat weights 25 ct 38 ct 50 ct 75 ct 1 00 ct and 1 50 ct look like on an average sizes woman s hands with a finger size of size 6 16 45 mm.
													
																	1 7 carat diamond ring on finger. 
								
	
		
	
																	A round cut 1 50 carat diamond has a width of 7 4mm. 
																	As you can see anything 50 carat or bigger tends to look good. 
																	As you can see in the photo below the 1 50 carat is already considered a comfortably sized diamond. 
																	Assuming that the average finger width is 17mm a 1 50 carat diamond will appear to cover 43 5 of the width of the finger. 
															
													
								
	
		
	
																	A half carat diamond 50 ct has a mm width of 5 2 mm. 
																	To choose another diamond or to change diamond parameters click here. 
																	Face up size of this diamond is as you would expect of a 1 7ct round learn more. 
																	This 1 7 carat round has a face up area of approx. 
															
													
								
	
		
	
																	How will a 1 carat diamond look on size 7 finger. 
																	Here you can see how big 1 75 carat diamond 7 83 7 83 4 72mm actually is and how it would appear on a ring and finger. 
																	47 29 mm which falls within the normal range for 1 7ct rounds a face up area is the area of the girdle plane and tells you how big the stone looks when viewed from the top as set in a ring. 
																	In my opinion diamonds ranging between 0 5ct 1 5ct would look perfectly fine on these finger sizes. 
															
													
								
	
		
	
																	Here s another fantastic candid shot of a beautiful couple that shows how great a one carat brian gavin signature diamond looks on her size 7 finger. 
																	A 3 4 carat 75 ct diamond has a width of 5 9 mm. 
																	As you can see a one carat diamond looks equally impressive on a size 4 or size 7 ring finger. 
																	Adjust the ring and finger size to get an idea of how it would look on your finger. 
															
													
								
	
		
	
																	Personally i think diamonds below 0 30ct would look small and i would recommend using a halo setting to spruce up the appearance of the engagement ring.