Type IIa Diamonds
Type IIa Diamonds are the most valuable and consequently are very collectable items. They contain either very little or no Nitrogen atoms in the crystal structure of the stones. White stones are exceptionally colorless and fancy colored diamonds are often found with a brown, purple, or pink tone.
These diamonds have no measurable nitrogen or boron impurities. Among all diamonds, those that are type IIa are chemically the most pure. They represent only 1% – 2% of all diamonds.
Some Famous Type IIa Diamonds:
These are some iconic type IIa diamonds include the Koh-I-Noor, Elizabeth Taylor Diamond – “Krupp Diamond”, Darya-I-Noor, The Archduke Joseph, the Regent, the Agra, The Star of the South, The Beau Sancy, The Pink Legacy, The Artemis Pink, Rarest White Diamond and The Graff Venus.
Koh-I-Noor
The Elizabeth Taylor Diamond
Darya-I-Noor
The Archduke Joseph
The Archduke Joseph is a colorless, antique cushion-shaped brilliant, weighing 78.54 carat.
The Regent Diamond
The Regent Diamond is a 141 carat diamond, worth £48,000,000. It is widely considered the most beautiful and the purest diamond in the world.
The Agra Diamond
The Agra Diamond is a 41 carat diamond. The Agra Diamond is the fifth-largest pink diamond in the world.
Star of the South Diamond
The Star of the South, also known as Estrela do Sul, is a diamond found in Brazil. The diamond is cut into a cushion shape and weighs 128.48 carats.
The Beau Sancy
The Beau Sancy is a 34.98 carat modified “pear double rose cut” diamond found in India.
The Pink Legacy
The Pink Legacy, a Fancy Vivid Pink, Type IIA, cut-cornered rectangular-cut diamond of 18.96 carats.
The Artemis Pink
The Artemis Pink is a Type IIa, Fancy Intense Pink Diamond weighing 16.00 carats.
Rarest White Diamond
The largest D flawless, Type IIa, round brilliant diamond in the world, 102.34 carat.
The Graff Venus
At 118.78 carats, the “The Graff Venus” is the world’s largest D-color, Type IIA, flawless heart-shaped diamond.