Type Ia- most common (-95% contains nitrogen

Type Ib- Very Rare

Type IIa- Very pure, high quality

Type IIb- Blue diamonds (Boron)

Round Brilliant -Most common overall very sparkly

Princess -Square shape very popular

Cushion -Rounded square, sofe look

Oval -Elongated, make fingers look longer

Emerald -Retangular withstepcuts

Pear -Teardrop shape

Marquise -Long and narrow with pointed ends

Radiant -Square/Rectangular with lots of sparkle

Asscher -Square emerald style cut

Heart - Decorative and symbolic

By natural inclusions

FL / IF, VVS1 / VVS2, VS1 / VS2, S/I1 / S12 I1-13