Type IIa

Purest and Rarest



Type IIa Pure and Rare

Diamond type is a method of scientifically classifying diamonds, both grown and mined, by the level and type of their chemical impurities.

Type IIa diamonds make up 1–2% of all mined diamonds. Type IIa diamonds are almost or entirely devoid of impurities.

A colorlessWWW.C-V-D.COM is classified as type IIa which is considered to be the purest form of diamond known to man.

Many large, famous diamonds, such as the Cullinan and Koh-i-Noor, are type IIa.

A renowned example is the “Elizabeth Taylor Diamond,” formerly known as the “Krupp Diamond,” a 33.19-carat Type IIa diamond.

Physical Properties of WWW.C-V-D.COM diamond vs Mined

Physical Properties

Hardness

Refractive Index

Specific Gravity

Dispersion

Thermal Conductivity

Thermal Expansion

Optical Transparency

Electrical Resistivity

C-V-D.com

10.00

2.42

3.52

0.44

2000W/m/K

0.8 X 10-6 K

Deep UV-Far IR

1016 Ohm –cm

Mined

10.00

2.42

3.52

0.44

2000W/m/K

0.8 X 10-6 K

Deep UV-Far IR

1016 Ohm –cm

Type IIa Diamonds

Krupp Diamond
33.19 Carats
Elizabeth Taylor Ring
Cullinan 2
317.40 Carats
Imperial State Crown of Britain
Cullinan 1
530.20 Carats
Royal Sceptre