Smoky Quartz Gemstones

  • Hardness

    7.0 on the Mohs scale.

  • Occurrence

    Brazil, Madagascar, Switzerland, U.S. (Colorado), Australia and Spain. Smoky quartz from the Cairngorm Mountains of Scotland is called cairngorm.

  • Appearance

    Smoky quartz is the dark brown variety of quartz. In the past, these were often sold as "smoky topaz". There is no such gemstone known as smoky topaz and it's illegal to refer to quartz as "topaz". Watch out for some unscrupulous dealers who sell "smoky topaz", it is probably quartz. Citrine was often passed off as topaz as well. Smoky quartz crystals can form together with citrine crystals to form bi-colored quartz. Smoky quartz is sometimes found rutilated, which would be called Smoky Sagenite (Rutilated Quartz).

  • Enhancements

    Smoky quartz is occasionally produced by irradiation of colorless quartz.

    More information on gemstone enhancements.

  • Gemstone Family

    Smoky Quartz is a member of the Quartz gemstone family.

Smoky Quartz
Smoky Quartz

QUA482
QUA482
0.48 ct. total, 'AA' Grade
4.0mm Round Cut
Dark
Slightly Brownish Yellowish Orange
Loupe Clean
[H] Heated to improve color.
Quantity Available: 3 pairs
Smoky Quartz

QUA483
QUA483
0.22 ct. total, 'AA' Grade
3.0mm Round Cut
Medium
Brown
Loupe Clean
[H] Heated to improve color.
Quantity Available: 1 pairs
Smoky Quartz

QUA797
QUA797
4.05 ct., 'AA' Grade
14.1x9.0mm Pear Cut
Dark
Brownish Red-Orange
Very Slightly Included
[H] Heated to improve color.
One of a kind.
Smoky Quartz

QUA832
QUA832
0.96 ct., 'AA' Grade
7.0x5.0mm Emerald Cut
Medium Dark
Brownish Reddish Orange
Loupe Clean
[N] Not enhanced.
One of a kind.
Smoky Quartz

QUA833
QUA833
1.51 ct., 'AA' Grade
8.0x6.0mm Emerald Cut
Medium Light
Brownish Reddish Orange
Loupe Clean
[N] Not enhanced.
One of a kind.
Smoky Quartz

QUA834
QUA834
2.38 ct., 'AA' Grade
9.1x7.1mm Emerald Cut
Medium Dark
Brownish Reddish Orange
Loupe Clean
[N] Not enhanced.
One of a kind.
Smoky Quartz

QUA798
QUA798
2.98 ct., 'AA' Grade
10.0x8.0mm Antique Cushion Cut
Dark
Brown
Loupe Clean
[H] Heated to improve color.
One of a kind.
Smoky Quartz

QUA799
QUA799
2.26 ct., 'AA' Grade
8.1mm Antique, Checkerboard Top Cut
Dark
Brownish Reddish Orange
Very Very Slightly Included
[H] Heated to improve color.
One of a kind.
Smoky Quartz

QUA800
QUA800
9.71 ct., 'AA' Grade
13.9mm Cabochon, Antique Cut
Dark
Brownish Reddish Orange
Very Very Slightly Included
[H] Heated to improve color.
One of a kind.
Smoky Quartz

Calibrated Smoky Quartz
Calibrated Smoky Quartz

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 Clean, color ranges from medium light (tan) to medium dark (brown), good cut.
  • A Clean, color ranges from light (tan) to medium light, good cut.

Smoky Quartz Quality AA A
Shape Size Avg. Weight Price Each
1mm
0.003 ct.
1.25mm
0.01 ct.
1.5mm
0.02 ct.
 
1.75mm
0.02 ct.
 
2mm
0.04 ct.
2.25mm
0.04 ct.
2.5mm
0.06 ct.
2.75mm
0.08 ct.
 
3mm
0.10 ct.
3.5mm
0.15 ct.
 
4mm
0.24 ct.
 
4.5mm
0.36 ct.
 
5mm
0.50 ct.
 
5.5mm
0.62 ct.
 
6mm
0.80 ct.
 
6.5mm
1.00 ct.
 
7mm
1.30 ct.
 
8mm
1.75 ct.
 
9mm
2.65 ct.
 
10mm
3.50 ct.
 
11mm
4.40 ct.
 
12mm
6.40 ct.
 
14mm
10.00 ct.
 
16mm
14.50 ct.
 
 
  AA A
5x3mm
0.25 ct.
 
6x4mm
0.46 ct.
 
7x5mm
0.75 ct.
 
8x6mm
1.25 ct.
 
9x7mm
1.75 ct.
 
10x8mm
2.50 ct.
 
11x9mm
3.65 ct.
 
12x10mm
4.65 ct.
 
14x10mm
5.65 ct.
 
14x12mm
7.75 ct.
 
16x12mm
8.85 ct.
 
18x13mm
11.85 ct.
 
20x15mm
16.50 ct.
 
25x20mm
37.50 ct.
 
30x12mm
20.25 ct.
 
 
  AA A
5x3mm
0.20 ct.
 
6x4mm
0.37 ct.
 
7x5mm
0.65 ct.
 
8x5mm
0.75 ct.
 
9x6mm
1.20 ct.
 
10x7mm
1.85 ct.
 
12x8mm
3.20 ct.
 
14x9mm
4.15 ct.
 
 
  AA A
4x2mm
0.08 ct.
 
6x3mm
0.25 ct.
 
8x4mm
0.65 ct.
 
10x5mm
1.10 ct.
 
12x6mm
1.75 ct.
 
28x14mm
22.60 ct.
 
 
  AA A
6x4mm
0.55 ct.
 
7x5mm
1.00 ct.
 
8x6mm
1.70 ct.
 
9x7mm
2.25 ct.
 
10x8mm
3.25 ct.
 
11x9mm
4.25 ct.
 
12x10mm
5.50 ct.
 
14x10mm
7.75 ct.
 
16x12mm
11.40 ct.
 
18x13mm
15.00 ct.
 
20x15mm
23.50 ct.
 
22x16mm
27.25 ct.
 
25x18mm
38.00 ct.
 
 
  AA A
5x2mm
0.15 ct.
 
 
  AA A
2mm
0.03 ct.
 
2.5mm
0.07 ct.
 
3mm
0.10 ct.
 
8mm
2.30 ct.
 
 
  AA A
10mm
4.70 ct.
 
 
  AA A
14x10mm
6.20 ct.
 
25x10mm
13.95 ct.
 
30x12mm
21.10 ct.
 
 
  AA A
12mm
9.50 ct.
 
14mm
15.00 ct.
 
 
  AA A
5mm
0.65 ct.
 
6mm
1.05 ct.
 
7mm
1.25 ct.
 
8mm
2.25 ct.
 
9mm
2.65 ct.
 
10mm
4.40 ct.
 
12mm
7.40 ct.
 
 
  AA A
10x8mm
2.75 ct.
 
11x9mm
3.65 ct.
 
12x10mm
6.35 ct.
 
14x10mm
6.25 ct.
 
14x12mm
8.50 ct.
 
25x10mm
12.90 ct.
 
 
  AA A
14mm
9.80 ct.
 
16mm
15.50 ct.
 
20mm
22.75 ct.
 
 
  AA A
25x10mm
14.80 ct.