Carnelian (Chalcedony) Gemstones

  • Hardness

    6.5 - 7.0 on the Mohs scale.

  • Occurrence

    Worldwide. A member of the chalcedony family (micro-crystalline quartz).

  • Appearance

    Cornelian, also spelled Carnelian ranges in color from light brownish-red to deep transparent red. The color is due to Iron.

  • Enhancements

    Carnelian is usually heat treated to produce color, and occasionally dyed to produce color.

    More information on gemstone enhancements.

  • Gemstone Family

    Carnelian is a member of the Chalcedony gemstone family.

Carnelian
Carnelian

CRN102
CRN102
 7.48 ct. total
12.0x10.0mm Oval Cut
Dark
Brownish Red
Translucent
[E] Routinely enhanced.
Quantity Available: 35 pairs
Carnelian Chalcedony (Brazil)

CRN139
CRN139
 0.36 ct. total
5.0mm Cabochon, Round Cut
Dark
Brownish Red
Translucent
[N] Not enhanced.
Quantity Available: 39 pairs
Carnelian Chalcedony

CRN107
CRN107
 9.89 ct. total
22.0x8.0mm Cabochon, Oval Cut
Medium Dark
Brownish Red
Translucent
[E] Routinely enhanced.
Quantity Available: 4 pairs
Carnelian Chalcedony

CRN118
CRN118
 58.31 ct.
40.0x30.0mm Cabochon, Oval Cut
Medium
Brownish Red
Translucent
[E] Routinely enhanced.
Quantity Available: 9
Carnelian Chalcedony

CRN123
CRN123
 2.41 ct. total
8.0x6.0mm Cabochon, Oval Cut
Medium Dark
Brownish Orange
Translucent
[E] Routinely enhanced.
Quantity Available: 26 pairs
Carnelian Chalcedony

CRN124
CRN124
 3.38 ct. total
10.0x8.0mm Cabochon, Oval Cut
Medium Dark
Brownish Orange
Translucent
[E] Routinely enhanced.
Quantity Available: 41 pairs
Carnelian Chalcedony

CRN127
CRN127
 16.60 ct. total
18.0x13.0mm Cabochon, Oval Cut
Medium Dark
Brownish Orange
Translucent
[E] Routinely enhanced.
Quantity Available: 10 pairs
Carnelian Chalcedony

CRN138
CRN138
 7.94 ct. total
20.0x7.0mm Cabochon, Oval Cut
Medium Dark
Brownish Orange
Translucent
[A] Not normally enhanced.
Quantity Available: 4 pairs
Carnelian Chalcedony

CRN108
CRN108
 1.44 ct. total
8.0x5.0mm Cabochon, Pear Cut
Medium
Brownish Red
Translucent
[E] Routinely enhanced.
Quantity Available: 5 pairs
Carnelian Chalcedony

CRN146
CRN146
 31.43 ct.
30.0mm Donut
Medium
Strong Orangy Red
Translucent
[H] Heated to improve color.
Quantity Available: 2
Carnelian Chalcedony

CRN147
CRN147
 42.55 ct.
30.0mm Donut
Colorless
Translucent
[H] Heated to improve color.
One of a kind.
Areas of dark orangey-red.
Carnelian Chalcedony

CRN149
CRN149
 103.60 ct.
45.0mm Donut
Dark
Strong Orangy Red
Slightly Translucent
[H] Heated to improve color.
One of a kind.
Carnelian Chalcedony

CRN150
CRN150
 102.50 ct.
45.0mm Donut
Dark
Strong Orangy Red
Opaque
[H] Heated to improve color.
One of a kind.
Carnelian Chalcedony

Calibrated Carnelian
Calibrated Carnelian

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.

  • A Orangy red to brownish orange, medium dome.

Carnelian Quality A
Shape Size Avg. Weight Price Each
Cabochon, Round CutCabochon, Round Cut
3mm
0.18 ct.
4mm
0.60 ct.
5mm
0.49 ct.
6mm
0.93 ct.
7mm
1.38 ct.
8mm
2.04 ct.
9mm
3.00 ct.
10mm
3.74 ct.
12mm
6.83 ct.
14mm
11.52 ct.
16mm
14.32 ct.
18mm
19.61 ct.
20mm
22.76 ct.
 
  A
Cabochon, Oval CutCabochon, Oval Cut
5x3mm
0.23 ct.
6x4mm
0.44 ct.
7x5mm
0.81 ct.
8x6mm
1.23 ct.
9x7mm
1.85 ct.
10x8mm
2.59 ct.
12x10mm
4.63 ct.
14x10mm
5.38 ct.
16x12mm
7.68 ct.
18x13mm
10.13 ct.
22x8mm
4.83 ct.
25x18mm
20.66 ct.
30x22mm
30.17 ct.
40x30mm
69.58 ct.
 
  A
Cabochon, Pear CutCabochon, Pear Cut
8x5mm
0.64 ct.
10x7mm
2.06 ct.
13x9mm
3.27 ct.
15x10mm
4.82 ct.
18x13mm
11.44 ct.
25x18mm
22.10 ct.
 
  A
Cabochon, Marquise CutCabochon, Marquise Cut
8x4mm
0.49 ct.

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