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Amethyst Gemstones
Crystal system: Trigonal
Chemical composition: SiO2
Color: Violet, purple pink.
Hardness: 7.0
Specific gravity: 2,65
Refractive index: 1.54
Dispersion: 0.013
Pleochroism: Purple, reddish purple
Birthstone: February
Enhancements: Amethysts may be heated to lighten very dark purple crystals prior to cutting. The treatment is permanent, although only occasionally used.
Product Name+
Price
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10.16 ct. Oval Deep Vivid Purple Amethyst
$105.00
10.20 ct. Oval Deep Vivid Purple Amethyst
$105.00
10.40 ct. Oval Deep Vivid Purple Amethyst
$105.00
10.56 ct. Oval Deep Vivid Purple Amethyst
$110.00
11.54 ct. Oval Deep Vivid Purple Amethyst
$120.00
11.80 ct. Oval Deep Vivid Purple Amethyst
$120.00
12.23 ct. Oval Deep Vivid Purple Amethyst
$123.00
12.30 ct. Oval Nice Bright Purple Amethyst
$123.00
12.68 ct. Oval Deep Vivid Purple Amethyst
$130.00
13.20 ct. Oval Deep Vivid Purple Amethyst
$135.00
14.01 ct. Oval Deep Vivid Purple Amethyst
$142.00
14.50 ct. Oval Deep Vivid Purple Amethyst
$150.00
15.20 ct. Oval Deep Vivid Purple Amethyst
$155.00
15.22 ct. Oval Deep Vivid Purple Amethyst
$155.00
15.37 ct. Cushion Cut Deep Vivid Purple Amethyst
$155.00
16.15 ct. Oval Deep Vivid Purple Amethyst
$162.00
16.20 ct. Oval Deep Vivid Purple Amethyst
$165.00
16.30 ct. Oval Deep Vivid Purple Amethyst
$165.00
17.85 ct. Oval Deep Vivid Purple Amethyst
$180.00
18.34 ct. Oval Deep Vivid Purple Amethyst
$185.00
2.14 ct. Pear Shape Nice Bright Purple Amethyst
$22.00
2.26 ct. Cushion Cut Nice Bright Purple Amethyst
$23.00
2.33 ct. Pear Shape Nice Bright Purple Amethyst
$23.00
2.36 ct. Pear Shape Nice Bright Purple Amethyst
$24.00
2.41 ct. Fancy Cut Nice Bright Purple Amethyst
$24.00
2.47 ct. Oval Nice Bright Purple Amethyst
$25.00
2.52 ct. Oval Nice Bright Purple Amethyst
$25.00
2.66 ct. Oval Nice Bright Purple Amethyst
$27.00
2.76 ct. Pear Shape Nice Bright Purple Amethyst
$28.00
2.79 ct. Elongated Cushion Cut Nice Bright Purple Amethyst
$30.00
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