When shopping for a diamond loose or a diamond ring. Do research ! First it is best to shop locally so you can easily get in touch with the jeweler you are buying from and working with. Check reviews online in several places anybody can post a picture of diamond for sale but is that diamond they are showing the one you actually get? Many times it isn't the picture is a sample diamond because the diamond you are paying for that is being advertised for an extremely low price has clarity issues or is not that white. Make sure you ask questions and do research on who you are buying from.
A diamond is the hardest on the Mohs hardness scale which measures the hardness of a mineral by its resistance to scratching. But saying a diamond is the hardest is a little deceiving Hardness equals brittleness a diamond can be chipped or cracked very easily when faceted and mounted in a ring. Care for your diamond with regular cleanings and checking the prong tightness regularly by a jeweler. Take off your diamond when working with your hands in household cleaners or with tools .
when shopping for a diamond the best way to get exactly what you are paying for is to purchase a GIA certified diamond. The price of a GIA certified diamond will be a little higher than a diamond certified by other certification companies such as EGL, AGS ,HRD and IGI but GIA has been more accurate in certifying diamonds. Jewelers know they can look at a GIA certification and trust what the certification read. So when buying ask for a GIA certified diamond you will pay more but you will know exactly what you are getting.
Carat weight the size of your diamond is based on carat weight. The larger the diamonds carat weight is basically the higher the price. The best tip I can give on carat weight is if you looking for one-carat diamond do not rule out a .99 carat no one will know the difference except you and your wallet. The same goes for larger if you are wanting a 1.50 carat look at a 1.48 or 1.49 you will a notice a difference in price and the 1.50 will look no different than the 1.49.
Brilliance, Dispersion and Scintillation are three properties a well cut diamond exhibits. All three properties have to do with the way light interacts with a diamond. Light reflected off the diamonds is know as brilliance . Dispersion is the flashes of color in the diamonds as white light rays are separated into color. Also know as fire. Scintillation is the flashes of color when the diamond is moved back and forth.
Diamond fluorescence. Fluorescence in a diamond refers to the blue glow that comes from the diamond when put under ultraviolet light. Now the diamond industry looks at this as a bad thing and discounts diamonds with strong blue fluorescence as much as 15%. This is not a bad thing fluorescence will make your diamond appear whiter while saving you money. So search out a diamond with strong blue fluorescence and compare the stone to a diamond without fluorescence and judge for yourself.
Selecting you diamonds clarity. The GIA diamond clarity scale starts at F (flawless), which is the cleanest diamond meaning the diamond is without any carbon spots which are black specks or anything else that would take away from the clearness of the diamond. This is also the highest in price. Next on the scale is IF (internally flawless), VVS 1 & 2, VS1& 2 , SI 1& 2 , I ,1,2 & 3 as the scale goes down the more included the diamond becomes.
Selecting your diamonds color. Diamonds come in every color of the rainbow. I am going to explain the color scale for a white diamonds, which is D thru Z. The whitest diamond would be the color scale letter D meaning pure white. The lower the letters go the more yellow tint you get in the white diamond. One way to save some money would be to go with a lower letter in the color scale but make sure the diamond has a strong blue fluorescence, which will make the diamonds appear whiter.
The second step in buying a diamond would be deciding on the shape of the diamond you wish to purchase. The main diamond shapes being round, princess, asscher, cushion, marquise, oval, radiant, pear, heart and emerald shaped. The classic, timeless and most popular shape is a round it is also the most expensive as you lose the most amount when cutting a round from a rough diamond into a faceted diamond. There is no wrong shape of diamond. Most of all it is personal preference enjoy choosing!