The Fascination with diamond isn't modern phenomenon .the history of diamonds is entwined with the history of the world pliny.
one of the most important things that people should have knwoledge about diamond is : Sizez , shapes, and colors and clarity .
Clarity
Diamonds have internal feautures,called inclusions, and surface irregularities,called blemishes.together,they're called clarity characteristics.
clarity is the relative absence of inclusions and blemishes.
clarity characteristics might have negative influences on diamond's value but they have positive effects as well :
- they help gemologists separate diamond from simultants,inclusion in diamond often a different appearance from inclusions in simultants.
- because no two diamonds have exactly the same clarity characteristics they can help identify individual stones.
- they provide scientists with valuable information about how diamonds form.
Many people they dont know that diamonds come in a wide variety of color .
Color
Many people think of diamonds as colorless in reality , truly colorless diamonds are quite rare .most diamond used in jewelry are nearly coloreless with yellow or brown tints-most often light yellow.
Diamonds come in may colors other than yellow and brown .some of the most rare colors are red,purple and green .with colored diamonds ,more color usually means higher value,so the brightest ,purest colors are the most desirable.
Round Brilliant Cut
Cut
A well -cut diamond can make light perform in breathtaking ways,resulting in a magnificent display of three important diamond attributes:brilliance,fire,and scintillation.
Brilliance is the combination of all the white light reflections from the surface and the inside of a diamond .it gives a polished diamonds its brightness .
Fire is the word for the flashes of color you see in polished diamond.
Scintillation describes the flashes of light you see when the diamond .the light , or the observer moves.
The three major parts of diamonds , top to bottom,are the crown, the girdle,and the pavilion.the crown and the pavilion and sometimes the girdle have small flat.polished surfaces called facets.some polished diamonds also have a flat facet at the bottom of the pavillion ,called the culet.
A standard round brilliant diamond has 33 facets above the girdle and 24 or 25 below the girdle,depending on whether or not there's culet.
Diamonds come in a wide variety of shapes .
Brilliant cut- Cutting style with triangular or kite-shaped facets that radiate from the center toward the girdle.
Step cut-a cutting style that features long ,narrow facets in row usually three parallel to the girdle on both the crown and pavilion.
Baguette- A small ,four sided step cut that's rectangular,square ,or trapered.
Carat Weight
Diamond weights are stated metric carats,abbreviated "cts",one metric carat abbreviated "ct" in one fifth 0.200 of a gram .just one seven thousands 0.007 of an ounce .one ounce contains almost 142 carats.
The metric carat is divided into 100 points. a point abbreviated :pt" is one hundreth of a carat .an easy way to remember this is to think of carats as dollars and points as pennies .they are even written the same way 1.34 means one dollar and 34 cents and 1.44 cts means one carat and 44 points .
