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Boulder Solid Opal 7.75 cts 100% Natural Solid Ready To Set in Jewelry B1589

$ 17.6 $ 10.56

Australian Boulder Opal 7.07ct Queensland Natural Stone

$ 70.95 $ 42.57

20.1ct Free Form Cabochon Natural Winton Area Matrix Boulder Opal, Australia

$ 59.4 $ 35.64

4.6 ct Boulder Opal Cabochon freeform - Australia

$ 30.8 $ 18.48

Nice 38 ct Boulder Opal Cabochon freeform - Australia cab

$ 39.6 $ 23.76

Australian boulder opal cabochon! Great color! 53.9cts

$ 22 $ 13.2

Australian boulder opal cabochon! Great color! 19.9cts

$ 19.36 $ 11.61

29 carat boulder opal, nice pattern stone, 19 x 17 x 5 mm, undrilled

$ 9.63 $ 5.78

Boulder Opal Rough 7.75 TCW 100% Natural Australian Queensland Gemstone N3185

$ 13.2 $ 7.91

Queensland Boulder Opal 36.38ct Australian Natural Stone

$ 96.58 $ 57.95

Australian Boulder Opal 8.83ct Queensland Natural Stone

$ 96.67 $ 58

Vintage Estate Loose 14 x 22 mm Australian Boulder Opal 1.56 Grams 7.65 Ct 7/8"

$ 219.95 $ 131.97

36.55 carat face drilled boulder opal, 2 sided, 30 x 24 x 6mm, blue veins

$ 26.35 $ 15.81

Brilliant Gem Colors * 46ct Natural Australian Solid Yowah Boulder Opal * Video

$ 260.7 $ 156.41

Dazzling Gem Colors * 26ct Natural Australian Solid Yowah Boulder Opal * Video

$ 260.7 $ 156.41

35 carat boulder opal, blue veins, 38 x 2 x 5 mm undrilled

$ 43.95 $ 26.37

Queensland Boulder Opal 15.72ct Earring & Pendant Set Australian Natural Stone

$ 636.82 $ 382.09

Electric Gem Colors * 51ct Natural Australian Solid Matrix Boulder Opal * Video

$ 184.8 $ 110.88

Australian Boulder Crystal Pipe Opal 30.08ct Queensland Natural Stone

$ 128.05 $ 76.83

Australian Boulder Opal 1.30ctQueensland Natural Stone

$ 90.23 $ 54.14

Green & Violet 20ct Natural Australian Solid Yowah Boulder Opalize Wood * Video

$ 155.1 $ 93.05

Natural Australian BOULDER OPAL Cushion Cabochon 43.45 Cts 16x34x7 mm Gemstone

$ 6.15 $ 3.69

Natural Gem Australian Boulder Fire Opal 5 to 7mm Size Round Beads Necklace 16"

$ 67.32 $ 40.39

Natural Queensland Australia BOULDER OPAL Cutting Rough 9.45cts

$ 15.84 $ 9.5

QUEENSLAND BOULDER OPAL 58.4c BLUE GEMSTONE POLISHED CABOCHON UNSET OCA13371

$ 175.12 $ 105.07

Big! 72.78ct Free Form Cab Natural Winton Area Matrix Boulder Opal, Australia

$ 79.2 $ 47.52

Queensland Boulder Opal 8.45ct Australian Natural 5 Stone Parcel

$ 90.3 $ 54.18

Australian Boulder Opal 27.11ct Drilled Pendant

$ 54.3 $ 32.58

Rolling Green & Violet * 32ct Natural Australian Solid Matrix Boulder Opal

$ 148.5 $ 89.1

Flashy Reds * 46ct Natural Australian Solid Koroit Boulder Opal * See Video

$ 108.9 $ 65.34

17.1 ct Koroit Boulder Opal - Freeform Cabochon from Australia

$ 30.79 $ 18.47

Australian Boulder Opal 42.26ct Queensland Natural Stone

$ 86.34 $ 51.8

AUSTRALIAN NATURAL BOULDER OPAL 230g ROUGH SLAB PREFORM PARCEL OCA12531

$ 148.72 $ 89.23

4.98ct 14.2x9.4mm Oval Cab Natural Winton Area Matrix Boulder Opal Australia

$ 0.87 $ 0.52

Boulder Opal Cabochon 15x12.5mm with 7mm Dome from Australia (14554)

$ 13.19 $ 7.91

Gorgeous Blue 3.84 CT Natural Australian Boulder Opal Pendant Gold Plated

$ 73.04 $ 43.82

Electric Color-Filled Veins * 56ct Natural Australian Solid Yowah Boulder Opal

$ 174.9 $ 104.94

15.5 gram Koroit boulder opal rough - Australia

$ 44 $ 26.4

YOWAH BOULDER OPAL GEMSTONE*52CTS*GORGEOUS ELECTRIC OPAL*BOTH SIDES WITH FIRE

$ 110 $ 66

32 gram boulder opal rough - Australia specimen

$ 66 $ 39.6

Australian Boulder Opal 42.27ct Drilled Pendant

$ 54.36 $ 32.61

20.5 carat boulder opal blue fire, 18 x 16 x 7 mm

$ 26.35 $ 15.81

Australian Boulder Opal 51.96ct Queensland Natural Stone

$ 1338.5 $ 803.1

Natural Australian BOULDER OPAL Fancy Cabochon 32.50 Cts 18x34x5 mm Gemstone

$ 13.19 $ 7.91

70.70 Cts 100% Natural BOULDER OPAL Oval Cabochon 22X42X7 mm Loose Gemstone

$ 17.59 $ 10.55

Color-Filled Veins * 10ct Natural Australian Solid Koroit Boulder Opal * Video

$ 99 $ 59.4

BOULDER OPAL 32 x 21 MM ALL NATURAL VIVID COLORS COLLECTOR'S STONE

$ 44.87 $ 26.92

Natural Boulder Opal Amazing Oval Shape Cabochon Loose Gemstone 86 Cts AA-1742

$ 4.84 $ 2.9

44.2 carat boulder opal, side drilled, 40 x 23 x 5mm, conglomerate

$ 35.53 $ 21.32

27.42ct Rectangle Cabochon Natural Winton Area Matrix Boulder Opal, Australia

$ 59.4 $ 35.64

48 carat boulder opal, 35 x 28 x 5 mm, blue & green veins

$ 43.95 $ 26.37

Boulder Solid Opal 3.65 cts 100% Natural Solid Ready To Set in Jewelry B1591

$ 17.6 $ 10.56

31 ct Boulder Opal Cabochon freeform - Australia

$ 44 $ 26.4

Electric Gem Colors * Big 110ct Natural Australian Solid Koroit Boulder Opal

$ 313.5 $ 188.1

Gem Streaks of Color * Australian 31ct Solid Koroit Boulder Opal * Video

$ 333.3 $ 199.98

Beautiful Multi-Colored 10ct Australian Solid Semi-Black Matrix Boulder Opal

$ 283.8 $ 170.28

1.45 carat boulder opal , bright green & gold flash, full face, 10 x 7 x 3mm

$ 21.48 $ 12.88

Dark Body Gem Colors * 32ct Natural Australian Solid Koroit Boulder Opal * Video

$ 369.6 $ 221.76

Multi-Colored 20ct Natural Australian Solid Yowah Boulder Opal * See Video Clip

$ 237.6 $ 142.56

Green & Violet * 49ct Natural Australian Solid Yowah Nut Boulder Opal * Video

$ 122.1 $ 73.25

Boulder Opal Cabochon 16x12mm with 6mm dome from Australia (16189)

$ 21.55 $ 12.93

Rough Boulder Opal 47.85 ct 100% Australian Natural Rough Opal From QLD N2878

$ 26.4 $ 15.83

5.4ct White Opal, Coober Pedy, Red Blue Green, Australian Natural Gem Stone

$ 290.39 $ 174.23

13.5 carat undrilled boulder opal, blue fire veins, 22 x 13 x 5 mm

$ 70.35 $ 42.21

Australian Boulder Opal Gem 5.5mm Size Round Beads Bracelet 7" 40Cts.

$ 32.56 $ 19.53

0.51ct Free Form Cabochon Natural Winton Area Matrix Boulder Opal, Australia

$ 46.2 $ 27.72

Queensland Boulder Opal 8.24ct Loose Australian Natural Stone

$ 159.52 $ 95.71

74.00 Cts 100% Natural BOULDER OPAL PEAR Cabochon 37X37X6 mm Loose Gemstone

$ 14.95 $ 8.97

10.30 ct Dazzling Fancy (22 x 18 mm) Multi Color Australian Koroit Boulder Opal

$ 134.63 $ 80.77

Queensland Boulder Opal Hand Made Silver Pendant Natural Australian Stone

$ 159.89 $ 95.93

Queensland Boulder Opal 3pk. #00102

$ 22 $ 13.2

DAZZLING KOROIT BOULDER OPAL GORGEOUS CRYSTAL OPAL REDS BLUE & GREEN - SEE VIDEO

$ 87.12 $ 52.27

6.5 gram nice boulder opal rough chunk - Australia cabbing material

$ 44 $ 26.4

Bright Rolling Colors 32ct Natural Australian Solid Matrix Boulder Opal * Video

$ 250.8 $ 150.47

Natural Rare Gem Boulder Australian Opal 4MM Size Round Beads Necklace 17" 52Ct.

$ 49.36 $ 29.62

2.75 ct Boulder Opal Cabochon freeform - Australia

$ 35.2 $ 21.12

Natural Gem Australian Boulder Opal Rough Unpolished Nugget Beads Necklace 19"

$ 68.64 $ 41.18

43 Cts Natural Australian Boulder Opal Cabochon Loose Gemstone For Jewelry WG707

$ 19.35 $ 11.61

Natural Koroit Boulder Opal Gemstone 38.95 Cts Loose Cabochon Australia WG500

$ 79.19 $ 47.51

Australian Boulder Opal 33.42ct Drilled Pendant Stone

$ 160.07 $ 96.04

Boulder Opal Cabochon 25.5x13.5mm with 5mm Dome from Australia (14513)

$ 20.23 $ 12.13

Natural Australian Boulder Opal Gorgeous Color & Pattern 14.98 Carat Unmounted

$ 60.71 $ 36.42

34 carat boulder opal, 35 x 20 x 4 mm, green fire veins with a touch of red

$ 52.75 $ 31.65

Australian Boulder Wood Replacement Opal 19.17ct Natural Fossil Drilled Pendant

$ 60.72 $ 36.43

Australian Boulder Opal Gem 5.5mm Size Round Beads Bracelet 7" 39Cts.

$ 31.68 $ 19

21.67ct Rectangle Cabochon Natural Winton Area Matrix Boulder Opal, Australia

$ 59.4 $ 35.64

Rough Boulder Opal 37.25 ct 100% Australian Natural Rough Opal From QLD N2359

$ 60.72 $ 36.43

Natural Gem Australian Boulder Fire Opal 7.5mm Size Round Beads Necklace 16.5"

$ 117.43 $ 70.46

Australian Boulder Opal 44.49ct Drilled Pendant Queensland Natural Stone

$ 386.54 $ 231.92

49.73Ct AMAZING RARE ! MATRIX DESIGN PICTURE KOROIT BOULDER OPAL

$ 6.15 $ 3.69

4.09 CT Natural Australian Boulder Opal Cabochon Royal Blue

$ 35.2 $ 21.12

13.5 carat undrilled boulder opal, blue fire, 24 x 16 x 5mm

$ 17.55 $ 10.53

6.05 ct AIG CERTIFIED OVAL CABOCHON (19 X 12 MM) PLAY OF COLORS BOULDER OPAL

$ 131.99 $ 79.19

16.4ct Boulder Opal, Blue Green Caramel Swirls - Australian Natural Gem Stone

$ 88 $ 52.8

40.14Ct DAZZLING ! METALLIC BLUE FLASHY KOROIT BOULDER OPAL PENDENT

$ 43.99 $ 26.39

34.75 carat wire wrapped boulder opal, lovely purple veins, 34 x 30 x 4mm

$ 35.15 $ 21.09

10.24 Ct VIOLET GREEN FLASHY CLEAN FACE KOROIT BOULDER OPAL

$ 40.81 $ 24.48

Natural Boulder Opal Loose Gemstone Cabochon From Australia 91.95 Cts WG490

$ 35.19 $ 21.11

Group Of Loose Boulder Opal

$ 19.36 $ 11.61

BOULDER OPAL GEM STONE*7.80ct*BEAUTIFUL IRONSTONE/W PLENTY OF FLASH*

$ 30.8 $ 18.48