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Gemtypes in Category:
Agate (1)
Amethyst (1)
Ametrine (3)
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Black Opal (3)
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ID:
674625
Weight:
16.50ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
42.58
Item in Stock
More Options & Item Details
ID:
512362
Weight:
11.54ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
76.16
Item in Stock
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ID:
521651
Weight:
10.98ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
86.96
Item in Stock
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ID:
392055
Weight:
15.86ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
41.87
Item in Stock
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ID:
328625
Weight:
20.08ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
31.81
Item in Stock
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ID:
649876
Weight:
9.56ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
6.77
Item in Stock
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ID:
673984
Weight:
10.72ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
167.08
Item in Stock
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ID:
334243
Weight:
17.04ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
27.44
Item in Stock
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ID:
673981
Weight:
12.29ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
176.82
Item in Stock
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ID:
334290
Weight:
18.58ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
29.93
Item in Stock
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ID:
659847
Weight:
15.84ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
133.06
Item in Stock
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ID:
660202
Weight:
21.41ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
179.84
Item in Stock
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ID:
711258
Weight:
4.41ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
117.37
Item in Stock
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ID:
743386
Weight:
12.70ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
12.70
Item in Stock
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ID:
482204
Weight:
20.54ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
26.57
Item in Stock
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ID:
552289
Weight:
8.18ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
21.60
Item in Stock
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ID:
382832
Weight:
18.41ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
33.13
Item in Stock
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ID:
328628
Weight:
19.62ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
31.07
Item in Stock
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ID:
504865
Weight:
10.57ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
97.67
Item in Stock
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ID:
328752
Weight:
19.02ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
30.12
Item in Stock
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ID:
328843
Weight:
22.11ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent/Translucent
Content:
1 pc
Price:
$
35.02
Item in Stock
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ID:
709331
Weight:
10.28ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
21.22
Item in Stock
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ID:
605573
Weight:
16.73ct
Size:
18 x 13 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
154.58
Item in Stock
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ID:
370756
Weight:
21.62ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
28.54
Item in Stock
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ID:
650201
Weight:
10.95ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.75
Item in Stock
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ID:
708808
Weight:
14.32ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
29.56
Item in Stock
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ID:
650205
Weight:
10.43ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.38
Item in Stock
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ID:
619129
Weight:
16.55ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
43.69
Item in Stock
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ID:
577338
Weight:
10.33ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
79.63
Item in Stock
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ID:
712330
Weight:
12.94ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
34.48
Item in Stock
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ID:
566213
Weight:
8.55ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
33.86
Item in Stock
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ID:
673304
Weight:
12.12ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
29.09
Item in Stock
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ID:
196855
Weight:
13.35ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
52.87
Item in Stock
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ID:
725175
Weight:
10.60ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
12.08
Item in Stock
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ID:
686111
Weight:
9.29ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
11.15
Item in Stock
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ID:
370765
Weight:
25.02ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
33.02
Item in Stock
More Options & Item Details
ID:
334294
Weight:
17.46ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
28.12
Item in Stock
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ID:
649874
Weight:
8.77ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
6.20
Item in Stock
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ID:
328631
Weight:
18.97ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent/Translucent
Content:
1 pc
Price:
$
30.05
Item in Stock
More Options & Item Details
ID:
620000
Weight:
15.88ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
41.93
Item in Stock
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ID:
334251
Weight:
19.79ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
28.97
Item in Stock
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ID:
650031
Weight:
9.89ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.01
Item in Stock
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ID:
650389
Weight:
9.08ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
6.43
Item in Stock
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ID:
650203
Weight:
10.04ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.10
Item in Stock
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ID:
649870
Weight:
10.26ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.26
Item in Stock
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ID:
471617
Weight:
10.41ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
96.19
Item in Stock
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ID:
740712
Weight:
21.89ct
Size:
18 x 13 mm (calibrated)
Clarity:
IF
Content:
1 pc
Price:
$
875.60
Item in Stock
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ID:
686201
Weight:
11.52ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
13.82
Item in Stock
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ID:
438295
Weight:
25.08ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
99.31
Item in Stock
More Options & Item Details
ID:
382690
Weight:
12.58ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
33.22
Item in Stock
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ID:
730415
Weight:
12.39ct
Size:
18 x 13 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
1,189.44
Item in Stock
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ID:
332925
Weight:
19.58ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
31.02
Item in Stock
More Options & Item Details
ID:
650061
Weight:
9.00ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
6.37
Item in Stock
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ID:
650202
Weight:
9.86ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
6.98
Item in Stock
More Options & Item Details
ID:
650489
Weight:
9.88ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.00
Item in Stock
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ID:
504842
Weight:
11.22ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
103.67
Item in Stock
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ID:
334252
Weight:
21.24ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
34.20
Item in Stock
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ID:
422609
Weight:
9.31ct
Size:
18 x 13 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
36.86
Item in Stock
More Options & Item Details
ID:
334293
Weight:
21.41ct
Size:
18 x 13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
34.48
Item in Stock
More Options & Item Details
ID:
623083
Weight:
8.96ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
41.87
Item in Stock
More Options & Item Details
Why Buy Oval Shape 18x13 Mm Gems from GemSelect?
GemSelect Certified Store ReviewsGemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10
I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well
Posted By Marti in July, 2025
Source: Bizrate
Overall Rating -> 10
My whole experience is great.
Posted By Ghs in November, 2025
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
Easy to conduct search, good amount of stock to select from along with variety of prices.
Posted By Que in June, 2025
Source: Bizrate
Overall Rating -> 10
All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.
Posted By Bob D in December, 2025
Source: Bizrate
Overall Rating -> 10
I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.
Posted By DNaber in October, 2025
Source: Bizrate
