Sky Blue Topaz Gemstones

  • Hardness

    8.0 on the Mohs scale.

  • Occurrence

    Brazil, U.S., Sri Lanka (Ceylon), Myanmar (Burma), former USSR, Australia, Pakistan, Mexico, Tasmania, Japan, Africa. Topaz and citrine are the birthstones of the month of November. Some blue topaz are indistinguishable from aquamarine with the naked eye. Most blue topaz is irradiated and heat treated silver topaz, although it is sometimes found naturally. The names "Sky blue", "Swiss blue", "London blue" are trade names which refer to the darkness of the gemstone, with "sky blue" being the lightest and "London blue" being the darkest.

  • Appearance

    Sky blue topaz is the lightest shade of the blue topaz, and is often mistaken for aquamarine.

  • Enhancements

    Blue topaz is usually irradiated and often heated to produce blue color.

    More information on gemstone enhancements.

  • Gemstone Family

    Sky Blue Topaz is a member of the Precious Topaz gemstone family.

Sky Blue Topaz
Sky Blue Topaz

TPZ701
TPZ701
 1.70 ct. total, 'AA' Grade
5.0x7.0mm Pear Cut
Very Light
Moderately Strong Greenish Blue
Very Very Slightly Included
[R] Neutron irradiated and/or heat treated.
Only one pair available.
Set in 14kt. white gold scroll earrings.
Sky Blue Topaz

TPZ688
TPZ688
 3.01 ct., 'AA' Grade
8.0x7.9mm Square (Step) Cut
Medium Light
Vivid Greenish Blue
Loupe Clean
[R] Neutron irradiated and/or heat treated.
One of a kind.
Sky Blue Topaz

TPZ311
TPZ311
 1.79 ct. total
6.0mm Heart Shape
Medium Light
Vivid Greenish Blue
Loupe Clean
[R] Neutron irradiated and/or heat treated.
Quantity Available: 43 pairs
Sky Blue Topaz

TPZ694
TPZ694
 11.06 ct., 'A' Grade
13.3mm Texas Star Cut
Medium Light
Vivid Greenish Blue
Loupe Clean
[R] Neutron irradiated and/or heat treated.
One of a kind.
Sky Blue Topaz

TPZ695
TPZ695
 10.89 ct., 'A' Grade
13.3mm Texas Star Cut
Medium Light
Vivid Greenish Blue
Loupe Clean
[R] Neutron irradiated and/or heat treated.
One of a kind.
Sky Blue Topaz

Calibrated Sky Blue Topaz
Calibrated Sky Blue Topaz

Specify size, shape and quality when ordering. Prices are subject to change without notice. Actual carat weight may vary from the average carat weight listed.

  • AA Eye clean, bright light blue, good cut, good polish.

Sky Blue Topaz Quality AA
Shape Size Avg. Weight Price Each
Round CutRound Cut
2mm
0.04 ct.
2.5mm
0.09 ct.
3mm
0.14 ct.
3.5mm
0.22 ct.
4mm
0.30 ct.
4.5mm
0.45 ct.
5mm
0.55 ct.
5.5mm
0.80 ct.
6mm
0.98 ct.
6.5mm
1.30 ct.
7mm
1.65 ct.
8mm
2.40 ct.
9mm
3.25 ct.
10mm
4.64 ct.
11mm
6.85 ct.
 
  AA
Oval CutOval Cut
5x3mm
0.36 ct.
6x4mm
0.58 ct.
7x5mm
0.99 ct.
8x6mm
1.60 ct.
9x7mm
2.40 ct.
10x8mm
3.60 ct.
11x9mm
4.60 ct.
12x8mm
4.09 ct.
12x10mm
6.00 ct.
14x10mm
7.12 ct.
14x12mm
9.53 ct.
16x12mm
11.87 ct.
18x13mm
16.69 ct.
20x15mm
21.21 ct.
 
  AA
Pear CutPear Cut
5x3mm
0.26 ct.
6x4mm
0.50 ct.
7x5mm
0.85 ct.
8x5mm
1.05 ct.
8x6mm
1.40 ct.
9x6mm
1.50 ct.
10x7mm
2.01 ct.
12x8mm
3.65 ct.
13x9mm
4.68 ct.
14x9mm
4.37 ct.
15x10mm
6.53 ct.
16x12mm
10.08 ct.
18x13mm
12.93 ct.
 
  AA
Marquise CutMarquise Cut
4x2mm
0.09 ct.
5x2.5mm
0.18 ct.
6x3mm
0.32 ct.
8x4mm
0.66 ct.
10x5mm
1.00 ct.
12x6mm
1.98 ct.
14x7mm
3.40 ct.
15x7mm
3.80 ct.
 
  AA
Emerald CutEmerald Cut
5x3mm
0.37 ct.
6x4mm
0.53 ct.
7x5mm
1.30 ct.
8x6mm
2.00 ct.
9x7mm
3.00 ct.
10x8mm
4.25 ct.
11x9mm
4.01 ct.
12x10mm
5.01 ct.
14x10mm
9.52 ct.
14x12mm
12.70 ct.
16x12mm
15.67 ct.
18x13mm
20.32 ct.
20x15mm
30.17 ct.
 
  AA
Square (Step) CutSquare (Step) Cut
3mm
0.20 ct.
4mm
0.45 ct.
5mm
0.83 ct.
6mm
1.42 ct.
8mm
3.25 ct.
11mm
6.38 ct.
 
  AA
Heart ShapeHeart Shape
4mm
0.32 ct.
5mm
0.57 ct.
6mm
0.80 ct.
7mm
1.38 ct.
8mm
2.30 ct.
9mm
3.30 ct.
10mm
4.00 ct.
11mm
5.18 ct.
12mm
6.51 ct.
13mm
8.76 ct.
14mm
11.10 ct.
 
  AA
Trillion CutTrillion Cut
4mm
0.28 ct.
5mm
0.33 ct.
6mm
1.00 ct.
7mm
1.50 ct.
9mm
2.51 ct.
10mm
3.01 ct.
11mm
4.00 ct.
12mm
5.83 ct.
 
  AA
Straight Baguette CutStraight Baguette Cut
4x2mm
0.14 ct.
5x2.5mm
0.30 ct.
8x4mm
1.10 ct.
 
  AA
Tapered Baguette CutTapered Baguette Cut
4x2x1.5mm
0.12 ct.
 
  AA
Princess CutPrincess Cut
7mm
2.00 ct.
8mm
2.75 ct.
 
  AA
Antique CutAntique Cut
5mm
0.75 ct.
6mm
1.25 ct.
 
  AA
Antique Cushion CutAntique Cushion Cut
8x6mm
1.70 ct.
9x7mm
2.50 ct.
10x8mm
3.50 ct.
12x10mm
6.60 ct.
 
  AA
BrioletteBriolette
6x4mm
0.90 ct.
8x5mm
1.71 ct.
10x5mm
2.18 ct.
 
  AA
Oval, Checkerboard Top CutOval, Checkerboard Top Cut
25x10mm
11.72 ct.
30x12mm
20.70 ct.
 
  AA
Pear, Checkerboard Top CutPear, Checkerboard Top Cut
24x8mm
6.86 ct.
30x10mm
13.02 ct.
 
  AA
Round, Checkerboard Top CutRound, Checkerboard Top Cut
7mm
1.65 ct.
8mm
2.50 ct.
10mm
4.34 ct.
12mm
6.82 ct.
14mm
11.15 ct.
16mm
16.58 ct.
18mm
23.55 ct.
20mm
31.84 ct.
 
  AA
Antique, Checkerboard Top CutAntique, Checkerboard Top Cut
5mm
0.75 ct.
6mm
1.25 ct.
7mm
1.80 ct.
8mm
2.80 ct.
9mm
3.50 ct.
10mm
5.50 ct.
12mm
7.55 ct.
14mm
12.85 ct.
16mm
17.87 ct.
20mm
35.52 ct.
 
  AA
Antique Cushion, Checkerboard Top CutAntique Cushion, Checkerboard Top Cut
8x6mm
1.70 ct.
9x7mm
2.45 ct.
10x8mm
3.45 ct.
25x10mm
13.44 ct.
30x10mm
15.43 ct.
 
  AA
Marquise, Checkerboard Top CutMarquise, Checkerboard Top Cut
28x14mm
20.40 ct.

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