Gemstones Special Effects

Some times colored gemstones present some very striking optical effects. This is due to characteristic structures, defects or even inclusions, gems can show different effects such as:

Asterism, Adularescence, Aventurescence, Chatoyancy - Cat's eye effect, Iridiscence, Labradorescence, Play of Color, Change of Color, Opalescence and Orient.

If you are interested in knowing why these effects occur and what they are, be sure to visit our blog about: Optical Effects in Colored Gemstones.

Untreated Australian Boulder Opal 10.96 ct Untreated Australian Boulder Opal 10.96 ct

Untreated Australian Boulder Opal 10.96 ct

$232.00 $0.00
$232.00
Australian Boulder Opal 15.68 ct Australian Boulder Opal 15.68 ct

Australian Boulder Opal 15.68 ct

$268.00 $0.00
$268.00
Boulder Opal 9.50 ct from Australian Boulder Opal 9.50 ct from Australian

Boulder Opal 9.50 ct from Australian

$288.00 $0.00
$288.00
Beautiful Boulder Opal 12.78 ct from Australia Beautiful Boulder Opal 12.78 ct from Australia

Beautiful Boulder Opal 12.78 ct from Australia

$242.00 $0.00
$242.00
  • Sold out
Amazing Australian Boulder Opal 18.68 ct. Cabochon Cut. Amazing Australian Boulder Opal 18.68 ct. Cabochon Cut.

Amazing Australian Boulder Opal 18.68 ct. Cabochon Cut.

$288.00 $0.00
$288.00
Boulder Opal 64.68 ct. Australian gemstone. Boulder Opal 64.68 ct. Australian gemstone.

Boulder Opal 64.68 ct. Australian gemstone.

$236.00 $0.00
$236.00
  • Sold out
Amazing Australian Boulder Opal 12.31 ct. Amazing Australian Boulder Opal 12.31 ct.

Amazing Australian Boulder Opal 12.31 ct

$364.00 $0.00
$364.00
Australian Boulder Opal Pair 20.98 ct total. Australian Boulder Opal Pair 20.98 ct total.

Australian Boulder Opal Pair 20.98 ct

$246.00 $0.00
$246.00
Australian Boulder Opal Pair 24.03 ct total Australian Boulder Opal Pair 24.03 ct total

Australian Boulder Opal Pair 24.03 ct total

$364.00 $0.00
$364.00
Boulder Opal Pair from Australia. Cabochon Cut. 36.57 ct total. Boulder Opal Pair from Australia. Cabochon Cut. 36.57 ct total.

Boulder Opal Pair from Australia. Cabochon Cut. 36.57 ct total.

$350.40 $0.00
$350.40
Boulder Opal Pair from Australia. Cabochon Cut. 41.65 ct. Boulder Opal Pair from Australia. Cabochon Cut. 41.65 ct.

Boulder Opal Pair from Australia 41.65 ct

$418.00 $0.00
$418.00
Boulder Wood Fossil Opal pair from Australia 20.92 ct Boulder Wood Fossil Opal pair from Australia 20.92 ct

Boulder Wood Fossil Opal pair from Australia 20.92 ct

$368.00 $0.00
$368.00
  • Sold out
Australian Boulder Wood Fossil Opal Pair. Cabochon Oval Cut. 10.45 ct. Australian Boulder Wood Fossil Opal Pair. Cabochon Oval Cut. 10.45 ct.

Boulder Wood Fossil Opal Pair 10.45 ct Australia

$548.00 $0.00
$548.00
Australian Boulder Wood Fossil Opal Pair 9.83 ct Australian Boulder Wood Fossil Opal Pair 9.83 ct

Australian Boulder Wood Fossil Opal Pair 9.83 ct

$412.60 $0.00
$412.60
Color Change Diaspore Gemstone 3.15 ct pair under different lighting conditions Color Change Diaspore Gemstone 3.15 ct pair under different lighting conditions

Color Change Diaspore 3 15 ct Pair Cushion Cut

$357.00 $0.00
$357.00
Color Change Diaspore Gemstone 3.99 ct pair under different lighting conditions Color Change Diaspore Gemstone 3.99 ct pair under different lighting conditions

Color Change Turkish Diaspore 3 99 ct Pair

$420.00 $0.00
$420.00