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100.90Cts. Natural koroit/yowah Amazing quality Boulder Opal Pear cab Gemstone

$ 72.15 $ 43.29

44.50 Cts 100% Natural BOULDER OPAL PEAR Cabochon 20X33X8 mm Loose Gemstone

$ 12.31 $ 7.38

49.55 CT 100% Natural BOULDER OPAL Pear Cabochon 31X37X5 mm Loose Gemstone

$ 15.83 $ 9.49

5.65Ct Nice Oval cut 13 x 11 Multi-Color Matrix Natural Korotit Nut Boulder Opal

$ 11.59 $ 6.95

Veins Of Color * 22ct Natural Australian Solid Koroit Boulder Opal * See Video

$ 132 $ 79.2

Queensland Boulder Opal 2.53ct Australian Natural Stone

$ 111.84 $ 67.1

Boulder Opal Rough 27.25 ct 100% Australian Natural Rough Opal Queensland N3026

$ 110 $ 66

Australian Boulder Opal 39.54ct Drilled Pendant Queensland Natural Stone

$ 143.84 $ 86.3

Queensland Boulder Opal 21.19ct Australian Natural Stone

$ 97.09 $ 58.25

Australian Boulder Opal 3.10ct Queensland Natural Stone

$ 96.46 $ 57.87

Boulder Opal Cabochon 14x21mm with 6mm dome from Australia (5314)

$ 43.56 $ 26.13

Flashy Colors * 23ct Natural Australian Solid Yowah Boulder Opal * See Video

$ 112.2 $ 67.31

Veins of Color * 31ct Natural Australian Solid Yowah Boulder Opal * See Video

$ 141.9 $ 85.14

Opal Freeform Cab Lot Mintabie Opal

$ 66 $ 39.6

23 ct Colorful Koroit Boulder Opal - Freeform Cabochon from Australia

$ 74.79 $ 44.87

Australian Boulder Opal Pair 25.94ct Queensland Natural Split Stone

$ 636.82 $ 382.09

Super Rare Natural Gem Boulder Australian Opal 6.5MM Round Beads Necklace 17"

$ 113.69 $ 68.21

Queensland Boulder Opal 2.58ct Australian Natural Stone

$ 111.84 $ 67.1

Australian Boulder Opal 5.90ct Queensland Natural Stone

$ 125.4 $ 75.24

Australian Boulder Opal 4.15ct Queensland Natural Stone

$ 127.82 $ 76.69

12.6 gram boulder opal rough specimen with nice colors - Australia cabbing rough

$ 26.4 $ 15.83

Colorful Conglomerate, Queensland, Boulder Opal 15.68 cts S9129

$ 35.19 $ 21.11

Gem Color-Filled Veins 33ct Natural Australian Solid Koroit Boulder Opal * Video

$ 267.3 $ 160.38

Great 33 gram Koroit boulder opal rough slab - Australia

$ 70.4 $ 42.24

Big Green Violet Turquoise 31ct Natural Australian Solid Koroit Boulder Opal

$ 92.4 $ 55.44

Lovely 12ct Natural Australian Solid Yowah Boulder Opal * See Video Clip

$ 92.4 $ 55.44

Australian Boulder Opal 240.0ct Natural Stone Specimen

$ 95.86 $ 57.52

38.95 Cts Natural Koroit Australian Boulder Opal Loose Gemstone Cabochon WG498

$ 52.79 $ 31.67

AUSTRALIAN BOULDER OPAL 1700g ROUGH SPECIMEN ORNAMENT SLAB OCA12470

$ 113.52 $ 68.11

68 Ct. Natural Boulder Opal Oval Cabochon Loose Gemstone For Jewelry GK-5683

$ 4.39 $ 2.63

Rich Reds * 18ct Natural Australian Solid Koroit Boulder Opal * See Video Clip

$ 158.4 $ 95.04

31.40 Cts 100% Natural BOULDER OPAL Cushion Cabochon 21x22x5 mm Loose Gemstone

$ 7.03 $ 4.21

Gorgeous Yowah Boulder Opal 67.50cts R7101

$ 65.99 $ 39.59

Veins of Color * 22ct Natural Australian Solid Matrix Boulder Opal * See Video

$ 99 $ 59.4

Rough Boulder Opal 25.95 ct 100% Australian Natural Rough Opal From QLD N2842

$ 17.6 $ 10.56

Rough Boulder Opal 35.45 ct 100% Australian Natural Rough Opal From QLD N2841

$ 17.6 $ 10.56

Soccer Foot Ball Football Boulder Opal Stone Carving Cabochon Polished Gem

$ 52.8 $ 31.67

12.3 gram boulder opal rough specimen - Australia

$ 44 $ 26.4

Flashy Greens * 29ct Natural Australian Solid Yowah Boulder Opal * See Video

$ 115.5 $ 69.3

Queensland Boulder Opal 8.80ct Australian Natural Stone

$ 54.33 $ 32.59

Australian Boulder Crystal Pipe Opal 9.68ct Queensland Natural Stone

$ 22.41 $ 13.44

Australian Boulder Opal 1.65ct Queensland Natural Stone

$ 44.66 $ 26.8

Australian Boulder Matrix Opal 12.78ct Natural Stone

$ 41.59 $ 24.95

14.75ct Triangle Cabochon Natural Winton Area Matrix Boulder Opal, Australia

$ 59.4 $ 35.64

1.64 ct Excellent Fancy (10 x 6 mm) Multi Color Australian Koroit Boulder Opal

$ 51.91 $ 31.14

Natural Boulder Opal Loose Gemstone Cabochon From Australia 13.75 Cts OG668

$ 14.95 $ 8.97

Natural Queensland Australia BOULDER OPAL Specimen Rough 27.65cts

$ 13.2 $ 7.91

Australia Natural BOULDER OPAL Specimen Rough Lot 16.10cts

$ 15.84 $ 9.5

boulder opal bracelet, sterling silver, blue veins, 103 carats, 8-9 inches

$ 87.95 $ 52.77

31.99Ct RAREST MULTI-COLOR MATRIX PRECIOUS NATURAL KOROIT NUT BOULDER OPAL !

$ 47.88 $ 28.73

Funky Flower Leaf Boulder Opal Stone Carving Cabochon Polished Gem Tulip Rose

$ 35.2 $ 21.12

11.53Ct RAREST MULTI-COLOR MATRIX PRECIOUS NATURAL KOROIT NUT BOULDER OPAL !

$ 13.05 $ 7.83

Wonderful 25ct Natural Australian Solid Koroit Boulder Opal * See Video

$ 108.9 $ 65.34

5.23 gram Koroit boulder opal rough - Australia

$ 44 $ 26.4

5.23 gram Koroit boulder opal rough - Australia

$ 35.2 $ 21.12

Boulder Opal top drilled 18x18.5mm with 7mm dome from Australia (11683)

$ 19.79 $ 11.87

4.56 CT Natural Australian Boulder Opal Cabochon Green Fire

$ 39.6 $ 23.76

HUGE 450c QUEENSLAND BOULDER OPAL SPECIMEN GEMSTONE POLISHED DISPLAY OCA9441

$ 263.12 $ 157.87

Large Colorful Yowah Boulder Opal Polished Nice Color Flashes

$ 35.2 $ 21.12

Flashy Greens * 32ct Natural Australian Solid Yowah Boulder Opal * See Video

$ 95.7 $ 57.42

12.40Ct UNIQUE RAREST GEM ! CRYSTAL CORES PINK FLASHY AUSTRALIAN BOULDER OPAL

$ 9.67 $ 5.8

Gem Color-filled Veins * Australian 14ct Solid Koroit Boulder Opal * See Video

$ 125.4 $ 75.23

Double Sided Yowah Pattern Piece, Boulder Opal 21.89 cts, S8722

$ 30.79 $ 18.47

Galactic Colorshow * Natural Australian 47ct Solid Koroit Boulder Opal * Video

$ 1039.5 $ 623.69

Red & Violet * 21ct Natural Australian Solid Matrix Boulder Opal * See Video

$ 125.4 $ 75.23

Rich Color-Filled Veins * 37ct Australian Solid Koroit Boulder Opal * Video

$ 211.2 $ 126.71

Australian boulder opal matched pair, 50 cts total, 32 x 15 x 5 mm, green fire

$ 131.95 $ 79.17

8.45 ct Romantic Fancy (21 x 13 mm) Multi Color Australian Koroit Boulder Opal

$ 30.79 $ 18.47

Australia Natural BOULDER OPAL Specimen Rough Lot 25.00cts

$ 13.2 $ 7.91

31.7 ct Colorful Koroit Boulder Opal - Freeform Cabochon from Australia

$ 57.19 $ 34.31

Double-Sided 36ct Natural Australian Solid Koroit Boulder Opal * See Videos

$ 260.7 $ 156.41

Australian Boulder Opal Pair 32.85ct Queensland Polished Split Pair Stone

$ 559.63 $ 335.78

boulder opal 19 carats, very bright directional red flash, 23 x 16 x 5 mm

$ 43.95 $ 26.37

11.89Ct RAREST MULTI-COLOR MATRIX PRECIOUS NATURAL KOROIT NUT BOULDER OPAL !

$ 13.05 $ 7.83

Attractive Yowah Boulder Opal 6.01 cts, S8738

$ 26.39 $ 15.83

Boulder Solid Opal 1.55 cts 100% Natural Solid Ready To Set in Jewelry B1538

$ 22 $ 13.2

30 ct Colorful Koroit Boulder Opal - Freeform Cabochon from Australia

$ 105.59 $ 63.35

King-Sized * Electric Natural Australian 105ct Solid Koroit Boulder Opal * Video

$ 669.9 $ 401.94

Australian Boulder Wood Replacement Opal 15.44ct Queensland Natural Fossil Stone

$ 415.72 $ 249.43

Australian Boulder Opal 100ct Drilled Pendant

$ 383.48 $ 230.09

Australian Boulder Wood Replacement Pipe Opal 29.24ct Natural Fossil Stone

$ 303.16 $ 181.9

Australian Boulder Wood Replacement Pipe Opal 6.15ct Natural Fossil Stone

$ 287.49 $ 172.49

Color-Filled Veins * 9ct Natural Australian Solid Koroit Boulder Opal * Video

$ 115.5 $ 69.3

10.96cts Rare Multi Color Australia Koroit Natural Boulder Opal Loose Gemstones

$ 21.99 $ 13.19

Boulder Opal Cabochon 10x12mm with 4mm dome from Australia (4350)

$ 15.83 $ 9.49

AAA+ Quality 100% Natural Boulder Opal Pear Cabochon Gemstone 28.85 Ct 29X19X6mm

$ 7.03 $ 4.21

9.2ct Boulder Pipe Opal, Good Colour Hidden World Australian Natural Gem Stone

$ 158.4 $ 95.04

Flickering Colors * 11ct Natural Australian Solid Yowah Boulder Opal * See Video

$ 95.7 $ 57.42

Egg-sized 52 grams Australian boulder opal

$ 288.64 $ 173.18

Electric Color-Filled Veins * 27ct Natural Australian Solid Koroit Boulder Opal

$ 158.4 $ 95.04

Color-Filled Veins * 44ct Natural Australian Solid Koroit Boulder Opal * Video

$ 330 $ 198

Boulder Opal Cabochon 18.5x15mm with 6.5mm dome from Australia (13666)

$ 16.71 $ 10.02

Lot of QUEENSLAND BOULDER OPALS + Baroque Pearl Pendant + Amethyst Bead

$ 195.36 $ 117.21

WOW 25X18X6 MM NICE YELLOW TRIPLET OPAL RADIANT LAB-CREATED GEMSTONE CAB,/

$ 9.68 $ 5.8

Australian Boulder Opal Gem 5.5mm Size Round Beads Bracelet 7" 41Cts.

$ 33.44 $ 20.06

Boulder Opal Rough 29.25 ct 100% Australian Natural Rough Opal Queensland N3174

$ 13.2 $ 7.91

11.20 ct AIG CERTIFIED FANCY CUT (20 X 10 MM) AUSTRALIA BOULDER OPAL STONE

$ 186.55 $ 111.93

Electric Double-Sided 19ct Natural Australian Solid Koroit Boulder Opal * Video

$ 448.8 $ 269.27

Natural Rare Gem Boulder Australian Opal 8MM Size Round Beads Necklace 17"

$ 166.05 $ 99.63

Boulder Opal Rough 8.15 ct 100% Australian Natural Rough Opal Queensland N3177

$ 13.2 $ 7.91