Oval Black Opal Gemstones - Natural, Certified
Discover the mesmerizing allure of Oval Black Opal Gemstones at GemSelect, featuring natural, certified loose gemstones with a dark body and vibrant multicolor play-of-color in red, blue, and green. Precision-cut into oval shapes to enhance their dazzling flashes, these gems range from $50 to $500 per carat. All stones are in stock, perfect for crafting luxurious rings , pendants , or earrings , with worldwide shipping to inspire your designs!
Bi-color
Black
Blue
Brown
Gray
Green
Multicolor Oval Black Opal
Orange
Pink
Purple
Red
Turquoise
Violet
White
Yellow
Clear Colors
Single
Pairs
Lots
Faceted
Cabochons
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ID:
679441
Weight:
5.66
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
169.80
Item in Stock
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ID:
679932
Weight:
7.64
Size:
16.8 x 13.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
275.04
Item in Stock
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ID:
516217
Weight:
2.79
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
92.07
Item in Stock
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ID:
679761
Weight:
7.14
Size:
19.9 x 12.1 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
214.20
Item in Stock
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ID:
696784
Weight:
1.71
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
51.82
Item in Stock
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ID:
473265
Weight:
5.54
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
139.14
Item in Stock
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ID:
679980
Weight:
7.32
Size:
16.9 x 12.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
263.52
Item in Stock
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ID:
697582
Weight:
1.38
Size:
9.7 x 7.5 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
41.82
Item in Stock
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ID:
500241
Weight:
1.74
Size:
8 x 6 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
68.90
Item in Stock
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ID:
705481
Weight:
2.30
Size:
11.6 x 8.9 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
69.00
Item in Stock
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ID:
705356
Weight:
1.64
Size:
12 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
49.20
Item in Stock
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ID:
518351
Weight:
1.23
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
48.71
Item in Stock
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ID:
516358
Weight:
1.50
Size:
6 x 4.2 mm
Clarity:
Translucent
Content:
4 pcs
Price:
$
59.40
Item in Stock
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ID:
705287
Weight:
1.90
Size:
11.5 x 8.2 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
57.00
Item in Stock
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ID:
744003
Weight:
8.10
Size:
15.7 x 13 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
405.00
Item in Stock
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ID:
744600
Weight:
2.54
Size:
12.2 x 9.2 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
101.60
Item in Stock
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ID:
705676
Weight:
1.38
Size:
9.1 x 7.3 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
41.40
Item in Stock
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ID:
705354
Weight:
1.36
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
40.80
Item in Stock
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ID:
746570
Weight:
1.46
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
45.10
Item in Stock
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ID:
744608
Weight:
2.13
Size:
12.2 x 7.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
85.20
Item in Stock
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ID:
705355
Weight:
1.05
Size:
9.6 x 6.3 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
26.25
Item in Stock
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ID:
744094
Weight:
5.15
Size:
15.1 x 11.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
257.50
Item in Stock
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ID:
519505
Weight:
1.32
Size:
6.3 x 4.3 mm
Clarity:
Translucent
Content:
4 pcs
Price:
$
52.27
Item in Stock
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ID:
712300
Weight:
0.84
Size:
9 x 7 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
30.24
Item in Stock
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ID:
705362
Weight:
1.22
Size:
10 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
36.60
Item in Stock
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ID:
745532
Weight:
8.91
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
445.50
Item in Stock
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ID:
705398
Weight:
1.34
Size:
9.7 x 7.4 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
40.20
Item in Stock
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ID:
705427
Weight:
0.97
Size:
9 x 6.5 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
29.10
Item in Stock
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ID:
473738
Weight:
2.84
Size:
8 x 6 mm (calibrated)
Clarity:
Translucent
Content:
3 pcs
Price:
$
78.46
Item in Stock
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ID:
746091
Weight:
3.18
Size:
13.7 x 10.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
111.62
Item in Stock
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ID:
744001
Weight:
11.03
Size:
20.4 x 13.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
551.50
Item in Stock
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ID:
744613
Weight:
1.60
Size:
11.1 x 8.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
56.00
Item in Stock
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ID:
744022
Weight:
4.80
Size:
14.3 x 8.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
240.00
Item in Stock
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ID:
705397
Weight:
2.37
Size:
13 x 9 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
71.10
Item in Stock
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ID:
473257
Weight:
5.55
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
153.34
Item in Stock
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ID:
746588
Weight:
1.27
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
39.23
Item in Stock
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ID:
516218
Weight:
2.31
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
91.48
Item in Stock
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ID:
705384
Weight:
1.25
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
37.50
Item in Stock
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ID:
744010
Weight:
12.20
Size:
29.5 x 17.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
610.00
Item in Stock
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ID:
705388
Weight:
1.72
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
51.60
Item in Stock
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ID:
705548
Weight:
1.44
Size:
11.5 x 7.9 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
43.20
Item in Stock
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ID:
679437
Weight:
8.74
Size:
19.6 x 12 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
314.64
Item in Stock
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ID:
744602
Weight:
2.42
Size:
12 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
96.80
Item in Stock
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ID:
744064
Weight:
8.61
Size:
19.2 x 12.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
430.50
Item in Stock
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ID:
473118
Weight:
3.23
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
89.23
Item in Stock
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ID:
705472
Weight:
1.67
Size:
12.3 x 8.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
50.10
Item in Stock
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ID:
679813
Weight:
5.92
Size:
16.1 x 12.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
213.12
Item in Stock
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ID:
705282
Weight:
2.67
Size:
13 x 9 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
80.10
Item in Stock
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ID:
744004
Weight:
4.03
Size:
14.7 x 11.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
201.50
Item in Stock
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ID:
705674
Weight:
1.74
Size:
12 x 8.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
52.20
Item in Stock
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ID:
746567
Weight:
1.75
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
54.06
Item in Stock
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ID:
519506
Weight:
1.41
Size:
6 x 4 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
55.84
Item in Stock
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ID:
705547
Weight:
1.19
Size:
9.8 x 7.6 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
35.70
Item in Stock
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ID:
705405
Weight:
1.29
Size:
9.6 x 7.1 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
38.70
Item in Stock
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ID:
473739
Weight:
5.23
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
144.49
Item in Stock
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ID:
697033
Weight:
1.08
Size:
10 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
32.72
Item in Stock
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ID:
500277
Weight:
2.79
Size:
7 x 5 mm (calibrated)
Clarity:
Opaque
Content:
4 pcs
Price:
$
110.48
Item in Stock
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ID:
745531
Weight:
5.11
Size:
15.2 x 11.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
255.50
Item in Stock
More Options & Item Details
ID:
518350
Weight:
1.18
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
38.94
Item in Stock
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ID:
329804
Weight:
2.65
Size:
7 x 5 mm (calibrated)
Clarity:
Opaque
Content:
5 pcs
Price:
$
104.94
Item in Stock
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Why Buy Oval Black Opal from GemSelect?
FAQs
What are oval black opal gemstones?
Oval black opal gemstones are natural precious opals from Australia, with a dark body and vibrant red, blue, or green play-of-color. Certified, they’re ideal for luxury jewelry.
Are oval black opal gemstones treated?
Most oval black opal gemstones are untreated, showcasing natural play-of-color. Some Ethiopian opals are smoked or stabilized, disclosed in certifications.
What jewelry suits oval black opal gemstones?
With a Mohs hardness of 5.5-6.5, oval black opal gemstones are best for pendants, earrings, or protected ring settings, perfect for statement pieces.
What color variations exist in oval black opal gemstones?
Oval black opal gemstones feature a black or dark gray body with red, blue, green, or multicolored flashes. Australian stones show intense, vivid patterns.
How do I buy oval black opal gemstones from GemSelect?
Visit the oval black opal gemstones category, select your loose stone by size or color, and purchase with secure checkout and worldwide shipping.
Are oval black opal gemstones in stock and ethically sourced?
All oval black opal gemstones are in stock, ethically sourced from Australia and Ethiopia, ensuring certified quality and sustainable practices.
What makes oval black opal gemstones unique?
Oval black opal gemstones stand out for their dark body, vibrant play-of-color, and October birthstone status, but require care due to their softness.
GemSelect Certified Store ReviewsGemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10
Great site for finding specific stones and sizes for individual pieces of jewelry
Posted By Designer in December, 2025
Source: Bizrate
Overall Rating -> 9
Everything was good, the purchase was what I expected and what they show is what you get.
Posted By Mr. in March, 2026
Source: Bizrate
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Posted By JD in July, 2025
Source: Bizrate
Overall Rating -> 10
It's mostly good, only some item's are easier to find through the search than the menu
Posted By Wayne in July, 2025
Source: Bizrate
Overall Rating -> 10
IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.
Posted By YE in October, 2025
Source: Bizrate
Overall Rating -> 10
Enjoy every moment
Posted By Ferns in October, 2025
Source: Bizrate
