Bijan Diamonds Dictionary
Bijan Diamonds dictionary of common loose diamonds and diamond jewelry terms in the industry and their meanings.
Click on the letters below and choose the word or phrases you'd like to learn.

Select a Letter: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | SHOW ALL
When you start to think about buying a diamond - and the love it will symbolize - you naturally want the best you can afford and a beautiful stone you both will treasure forever. Diamonds can be found in a range of prices - and you're certain to find one within DoW's extensive inventory that suits your taste and budget. If you're about to buy a Diamond Engagement Ring, you may want to consider spending the commonly accepted guideline of two months' salary. But, it's up to you to settle on a diamond that will truly represent your deepest emotions and the promise for the future you will share.
They are usually mentioned in percentage or angles. The right percentage and angles result in an optimum balance of dispersion and brilliance. They consist of Table %: The table decides how much brilliance (white light) is reflected back to the eye. A majority of diamonds have their table percentage ranging from 53 % to 64 %.
The overall condition or smoothness of the diamond's surface. The smoother the surface of the diamond the more light pass through the facets making the diamond brilliant. Below are the following polish grades for a diamond.

Ideal ( ID ) - Flawless, best among the polish grade.
Excellent ( EX ) - Flawless at 10x magnification.
Very Good ( VG ) - Very difficult to locate at 10x magnification.
Good ( G ) - Difficult to see at 10x magnification.
Fair ( F ) - Slightly noticeable at 10x magnification.
Poor ( P ) - Quite noticeble by the human eye.
Post Type

Friction Post

A device for preventing loss of a pierced earring from an ear lobe is provided and consists of a holder member which will cling to friction post behind the ear lobe. When the friction nut is removed from the earring the holder member will continue to keep the earring in place thereto.

Screw Back

A threaded post and screw used as the back setting for earrings. Screw backs are chosen as setting to secure more expensive earrings by holding them more securely in place. The lock is harder to take off because you have to rotate it many times.
Pave Setting

This setting is used for numerous diamonds set together in a tight cluster or group, with minimal metal showing. Giving the impression that the piece of jewelry is entirely paved with stones.

The settings are either created by use of tiny prongs that hold the jewels on both sides, or are crafted by scooping beads of precious metal out to hold the diamonds in place.