The Gemstone group we call tourmaline has over 6 sub groups with several varieties in each group, most of the popular gemstones
 are a member of the Elbaite group, Rubilite, (red) Indicolite, (blue) verdelite (green) as well as most bicolor tourmaline,
generally referred to as watermelon tourmaline regardless of the colors.
Tourmaline has a hardness of 7 to 7.5 but is a durable and forgiving gemstone
 Strong diachronic characteristics gives many tourmaline gemstones unique flashes of multiple colors

Gemstone type, Rubilite tourmaline
Origin: Africa
Size: mm
Clarity: Flawless
Weight: 7.14 cts
Cut: Emerald

Fantastic deep red/red bicolor tourmaline $428.40

Gemstone type, Rubilite
Origin, Africa
Size: mm
Clarity: inclusion
Weight: 2.05 cts
Cut: Emerald

Soft medium pink tourmaline, Cushion cut. $123.00

Gemstone type, Tourmaline
Origin, Africa
Size: 5.3 mm
Clarity: Flawless
Weight: .80
Cut: Emerald
Price: $110.00

Very bright stunning blue, very rare gemstone

Gemstone type:
Origin: Africa
Size:
Clarity: Flawless
Weight: 1.93 cts
Cut:
Price: $115.80

Dynamic dark blue tourmaline.

Gemstone type: Tourmaline
Origin: Brazil
Size, 6.5 mm
Clarity: Flawless
Weight: .75 cts
Cut: Emerald
Price: $150.00

A marvelous Blue.

Gemstone type, Tourmaline
Origin, Afghanistan
Size, 9mm
Clarity, Flawless
Weight, 4.07 cts
Cut, Emerald
Price: $366.30

Stunning bright Green color