Zircon Gemstones

  • Hardness

    7.5 on the Mohs scale.

  • Occurrence

    Sri Lanka (Ceylon), Thailand, Myanmar (Burma), Cambodia, Vietnam, Kampuchea, Australia, Brazil, Nigeria, Tanzania and France. Zircon and turquoise are the birthstones of the month of December.

  • Appearance

    Zircon, a naturally occurring gemstone, has colorless, yellow, orange, red, blue, brown and green varieties. Zircon, by it's name, is sometimes confused with cubic zirconia ("CZ"), which is synthetic. In addition, both have been used as diamond substitutes. Zircon has a high refractive index which is responsible for it's diamond like appearance. Zircon can be distinguished from diamond by it's double refraction and by wear and tear of it's edges, as compared to diamond which is very much harder.

  • Enhancements

    Green and brown colors of zircon are not enhanced. Yellow zircon is rarely heat treated to improve color. Blue, red and colorless are always heat treated brownish crystals to produce these colors.

    More information on gemstone enhancements.

Zircon
Zircon

ZIR101
ZIR101
0.32 ct.
3.8mm Round Cut
Light
Strong Greenish Blue
Loupe Clean
[H] Heated to improve color.
One of a kind.
Blue Zircon

ZIR146
ZIR146
0.12 ct., 'AA' Grade
2.5mm Round Cut
Light
Vivid Slightly Bluish Green
Loupe Clean
[H] Heated to improve color.
One of a kind.
Blue Zircon

ZIR133
ZIR133
8.49 ct. total
9.7x7.7mm Oval Cut
Medium
Vivid Very Strongly Greenish Blue
Loupe Clean
[H] Heated to improve color.
Only one pair available.
Zircon

ZIR166
ZIR166
0.83 ct.
5.5x4.3mm Oval Cut
Light
Vivid Slightly Bluish Green
Very Slightly Included
[H] Heated to improve color.
One of a kind.
Blue Zircon

ZIR168
ZIR168
0.87 ct.
5.8x4.4mm Oval Cut
Light
Vivid Slightly Bluish Green
Very Slightly Included
[H] Heated to improve color.
One of a kind.
Blue Zircon

ZIR170
ZIR170
0.74 ct.
5.6x4.3mm Oval Cut
Light
Vivid Slightly Bluish Green
Very Very Slightly Included
[H] Heated to improve color.
One of a kind.
Blue Zircon

ZIR180
ZIR180
0.97 ct.
6.2x4.4mm Oval Cut
Light
Vivid Slightly Bluish Green
Very Very Slightly Included
[H] Heated to improve color.
One of a kind.
Blue Zircon

Calibrated Zircon
Calibrated Zircon

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 Blue Zircon, Clean, medium dark, slightly greenish-blue, good cut.

Zircon Quality AA
Shape Size Avg. Weight Price Each
1.5mm
0.03 ct.
1.75mm
0.04 ct.
2mm
0.06 ct.
2.25mm
0.09 ct.
2.5mm
0.12 ct.
2.75mm
0.14 ct.
3mm
0.17 ct.
3.5mm
0.27 ct.
3.75mm
0.30 ct.
4mm
0.40 ct.
4.5mm
0.53 ct.
5mm
0.72 ct.
5.5mm
0.95 ct.
6mm
1.20 ct.
 
  AA
5x3mm
0.37 ct.
6x4mm
0.75 ct.
7x5mm
1.28 ct.
8x6mm
2.00 ct.
9x7mm
3.00 ct.
 
  AA
5x3mm
0.32 ct.
6x4mm
0.65 ct.
7x5mm
1.05 ct.
 
  AA
4x2mm
0.13 ct.
5x2.5mm
0.24 ct.
6x3mm
0.37 ct.
7x3.5mm
0.57 ct.
8x4mm
0.85 ct.
 
  AA
5x3mm
0.45 ct.
6x4mm
0.90 ct.