About Yellow Diamond

Yellow diamonds are abbreviated as yellow diamonds, also known as golden diamonds. They are a kind of colored diamonds, which refer to the yellow or golden colored diamonds with pure color and bright hue. Yellow diamonds are scarcely produced and have bright colors, which are very popular among collectors.

The largest yellow diamond is "Incomparable"-it weighs 407.48 carats.

Causes of yellow diamonds

The different colors of diamonds are due to the different chemical trace elements contained in diamonds and the deformation of the internal crystal structure during the process of diamond formation. During the formation of yellow diamonds, when nitrogen atoms replace certain carbon atoms in the diamond crystal (100 out of every million carbon atoms are replaced), the excess electrons will form a new one in the band gap Energy level, so that the crystal absorbs visible light, making the diamond appear yellow. Yellow diamonds are usually light yellow, golden yellow, wine yellow or amber. They are the most common color in colored diamonds. Golden yellow is the most precious and rare.

classification

Yellow diamond

During the centuries-old formation process, yellow diamonds acquire their color through exposure to nitrogen. Almost all "white" diamonds contain a slight yellow or brown tone. The Gemological Institute of America (GIA) standard color grading table considers D, E, or F grade gemstones to be "colorless." According to its standards, K-M grade diamonds are "faint yellow", and N-R grade diamonds are "very light yellow". The color grade of the remaining letters ranges from "light yellow" ("light yellow") to "very yellow" ("strong yellow"). True yellow diamonds account for only 0.1% of naturally occurring diamonds.

Main distribution

Yellow diamonds have a wide distribution, but diamonds with a deep yellow hue are mainly distributed in southern and central Africa. Western Australia's Ellendale Mine is the single largest producer of rare fancy yellow diamonds in the world.

Some natural yellow diamonds are also called "canary yellow diamonds" because of their bright colors and distinctive features. There are also some natural yellow diamonds named after the unearthed mining area. For example, the Zimmi yellow diamond is named after the Zimmi mining area in Sierra Leone.