Jewelry & Watches > Loose Diamonds & Gemstones > Loose Gemstones > Opal > Boulder Opals

Carved Australian Boulder Opal Crocodile Figurine 4. 5 Inch / 11. 5 Cm.

73 Gram Koroit Boulder Opal Rough Slab - Australia

278 Gram Koroit Boulder Opal Partially Polished Slab - Australia

Rare Carved Australian Boulder Opal Clock

Polished Yowah Opal Cabochon In Gem Jar - 2. 1 Grams - Vintage Estate Find

Vintage Australian Boulder Opal Hand Carved Snuff Bottle. 167. 58ct

Polished Boulder Opal Cabochon In Gem Jar -. 8 Grams - Vintage Estate Find

Lovely Polished Boulder Opal Cabochon In Gem Jar - 2. 75ct - Vintage Estate Find

Pretty Polished Boulder Opal Cabochons In Gem Jar - 1. 2 Grams - Vintage Estate Find

Lovely Australian Boulder Opal In Gem Jar - 1. 90ct - Vintage Estate Find

Rare Opal Natural Australia Fire Solid Matrix Boulder Gem Cabochon Estate Piece

Great 74. 1 Gram Koroit Boulder Opal Rough Slab - Australia

Fantastic Australian Boulder Opal Specimen Nr

Rare Opal Natural Australia Fire Solid Matrix Boulder Gem Cabochon Estate Piece

Vintage Queensland Opal Pendant, Gold Plated Stunning Reds And Blues.

Vintage Boulder Opal Drilled Cabochon Australia 20/15mm 16 Carats 300

Lovely Polished Boulder Opal In Gem Jar -. 4 Grams - Vintage Estate Find

Vintage Queensland Opal Pendant, Gold Plated Chain Necklace

Vintage Queensland Opal Pendant Gold Plated Mount, Stunning Reds And Blues.

Very Pretty Polished Boulder Opal Cabochon In Jar -. 7 Grams - Vintage Estate Find

Pretty Boulder Opal Cabochon In Gem Jar -. 3 Grams - Vintage Estate Find

2. 25 “ / 58mm 175 Carats Vintage Hand Cut Queensland Boulder Opal 271

181 Carats Vintage Carved Boulder Opal Frog 36

Solid Australian Coober Pedy Opal Ring 6. 25 Boulder Vintage Antique Estate Black

14. 75ct 100 Natural Australian Black Boulder Opal Cab Sbo3609

Rare Opalized Wood 11ct Natural Australian Yowah Boulder Opal See Video

Great 31 Gram Koroit Boulder Opal Rough Slab - Australia

Great 47 Gram Koroit Boulder Opal Rough Slab - Australia

380 Gram Koroit Boulder Opal Partially Polished Slab - Australia

14. 50ct Gem Quality Australian Boulder Pipe Opal Opalized Wood Fossil Gem Video

45 Gram Boulder Opal Rough Chunk - Australia Cabbing Material

122 Gram Boulder Opal Rough Chunk - Australia Cabbing Material

Stunning Vtg Ooak Boulder Opal Double Sided 3d Carved Horse For Pendant Or Other

468. 5ct 100 Natural Australian Black Boulder Opal Cab Sbog30

Vintage Carved Frog Opal & Ironstone 136 Carats Australia

4. 83ct Oval Cab Natural Koroit Nut Crystal Core Rare Boulder Opal. Best Of Show

Fine Flower Rose Boulder Opal Carving - 42 Carats - Australia

12 Gram Boulder Opal Rough - Australia

30 Gram Boulder Opal Rough - Australia Specimen

Great 47 Gram Koroit Boulder Opal Rough Slab - Australia

Great 66 Gram Koroit Boulder Opal Rough Slab - Australia

Great 38 Gram Koroit Boulder Opal Rough Slab - Australia

Great 45. 7 Gram Koroit Boulder Opal Rough Slab - Australia

57. 1ct 14k Yellow Gold 100 Natural Australia Play Of Color Opal Brooch Colt62

23. 90 Ct Exceptional Quality Extremely Rare Ethiopian Welo Opal - Ebb4

Huge Ethiopian Welo Rough Opal Aa, Specimen Bright Fire Rare Find 720 Crt Lk[3

53. 00 Ct 30x24 Mm Investment Grade Extremely Rare Ethiopian Welo Opal - Ebb1

55. 86 Ct 5/5 Brightness Extremely Rare Ethiopian Welo Opal (watch Video)

19. 1ct Natural Ethiopian Black Opal Cab Play Of Color Shpg241

8. 25ct Natural Ethiopian Black Opal Cab Play Of Color Shpg235

Huge Ethiopian Welo Rough Opal Aa, Specimen Bright Fire Rare Find 348 Crt Lk[9

100 Natural 330 Cts Jumbo Rare Fire Ethiopian Opal Rough In Loose Gemstone 7f[8

18. 60 Ct 26x21 Red Blue Flash Ethiopian Opal Electric Fire Rare Gem - Ebb38

Huge Ethiopian Welo Rough Opal Aa, Specimen Bright Fire Rare Find 474 Crt Lk[8

171ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg821

13. 90 Ct Rainbow Pattern Rare Quality Welo Ethiopian Opal - Ebb15

10. 7 Mm Rare Opalised Pine Cone Fossil Lightning Ridge Australia

22. 00 Ct One Of A Kind Extremely Rare Ethiopian Opal With White Based Water Body

Vtg Exquisite Natural White Opal Rondelles Faceted Beads 8mm. Necklace 9k Gold

Ethiopian Opal Jumbo Rare Fire 424 Crt 100 Natural Rough In Loose Gemstone L5 (2

15. 90 Ct Honeycomb Pattern Red Blue Flash Rare Quality Welo Ethiopian Opal Ebb33

62. 55ct 100 Natural Found African Black Opal Facet Rough Specimen Yhp766

14. 00 Ct 24x14 Mm Ethiopian Opal Jigsaw Pattern Multi Color Rare Gemstone - Ebb34

16. 8ct Natural Ethiopian Black Opal Cab Play Of Color Shpg230

12. 8ct Natural Ethiopian Black Opal Cab Play Of Color Shpg209

Estate Vintage 5. 93 Ct 14k Gold Natural Opal Diamond Ring Jewelry Size 8. R943

100 Natural 256cts Ethiopian Jumbo Fire Rare Opal Rough In Loose Gemstone Jv[11

117ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg880

10. 90 Ct White Base Ethiopian Opal Electric Fire Aaa Quality Rare Gemstone

9. 90 Ct White Base Ethiopian Opal Electric Fire Aaa Quality Rare Gemstone

Rare Loose Black Opal Solid Lightning Ridge Gem 2. 24ct Australian Opal Bc171018

86. 7ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Mysg670

7. 5ct Natural Ethiopian Black Opal Cab Play Of Color Shpg244

198ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg871

7. 90 Ct Exceptional Quality Extremely Rare Ethiopian Welo Opal - Ebb37

Rare Natural Australian Opal - Gem Aaa Crystal - Old Miners Treasure

16. 8ct Black Lightning Ridge Opal Facet Rough Specimen 100 Natural Pwg1305

84. 1ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg829

101ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg818

5. 87 Ct Simachew Pinfire Pattern One Of A Kind Rare Welo Ethiopian Opal

83. 8ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Mysg671

49. 80 Cts Natural Opal Museum Size Fiery Rare Huge Certified Gem From Ethiopia

Mintabie Opal Rough Parcel Some Black Rare Lapidary Rough Opal 128 Grams

260. 3ct Natural Ethiopian Chocolate Black Opal Facet Rough Specimen Mqg914

50. 5ct Natural Ethiopian Black Chocolate Opal Facet Rough Specimen Yqog1010

16. 15ct Natural Ethiopian Black Opal Cab Play Of Color Shpg194

256ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Mysg630

17. 27 Ct 19x15 Mm Broad Patchwork Extremely Rare Ethiopian Welo Opal - Ebb12

Rare Black Opal Solid Lightning Ridge Gem 13. 56 Ct Australian Opal Ba301018

145. 85ct Natural Ethiopian Black Chocolate Opal Facet Rough Specimen Yqog998

14. 2ct Natural Ethiopian Black Opal Cab Play Of Color Shpg176

73. 3ct Natural Ethiopian Black Chocolate Opal Specimen Collectible Ubqg812

Ethiopian Opal Jumbo Rare Fire 300 Crt 100 Natural Rough In Loose Gemstone W2 (4

321ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg872

4. 15ct Stunning Broad Flash Ethiopian Welo Opal With Rare Coral Fossil Video

43. 9ct 100 Natural Found African Black Opal Facet Rough Specimen Yhp770

76. 6ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg865

63. 8ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg863

1ct Natural Australian Found Doublet Shell Opal Fossil Specimen Ssbkt134

8. 00 Ct Investment Grade Extremely Rare Ethiopian Welo Opal - Daa10

56. 3ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg896

18. 40 Ct White Base Galaxy Pattern Rare Quality Welo Ethiopian Opal - Ebb31

23. 00 Ct Aaa Multifire Work Pattern Rare Ethiopian Welo Opal - Ebb30

22. 80 Ct 25x17mm White Base Electric Multicolor Rare Ethiopian Welo Opal - Ebb28

Rare Loose Black Opal Solid Lightning Ridge Gem 1. 23ct Australian Opal Bb171018

37. 85ct Natural Ethiopian Black Chocolate Opal Facet Rough Specimen Yqo3256

2. 20 Ct Rare Opalised Yabby Button Fossil Lightning Ridge Nsw Australia 5

80ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Uysg703

9. 3ct Natural Ethiopian Black Opal Cab Play Of Color Shpg192

88ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Mysg631

37ct Black Lightning Ridge Opal Facet Rough Specimen 100 Natural Pwg1303

221ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg831

46. 2ct 100 Natural Found African Black Opal Facet Rough Specimen Yhp819

17. 80 Ct Pinfire, Galaxy Pattern Quality Extremely Rare Ethiopian Welo Opal

407ct 100 Natural Untreated Sleeping Beauty Turquois Rough Specimen Myst968

Huge Ethiopian Welo Rough Opal Aa, Specimen Bright Fire Rare Find 266 Crt A5

4. 69 Ct Investment Grade Extremely Rare Ethiopian Welo Opal - Daa1

27. 7ct Natural Ethiopian Crystal Black Opal Play Of Color Rough Specimen Ysjg876

5. 85ct Natural Ethiopian Black Opal Cab Play Of Color Shpg238

259ct Natural Ethiopian Black Chocolate Opal Specimen Collectible Ubqg850