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Buy Oval Shape 18x13 mm Gems

(11)
Oval Shape 18x13 mm Gems Weight Oval Shape 18x13 mm Gems Size Oval Shape 18x13 mm Gems Clarity Oval Shape 18x13 mm Gems Price Oval Shape 18x13 mm Gems Origin
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Oval Shape 18x13 mm Gems Single
Oval Shape 18x13 mm Gems Pairs
Oval Shape 18x13 mm Gems Lots
Oval Shape 18x13 mm Gems Faceted
Oval Shape 18x13 mm Gems Cabochons
All Sizes Size Ranges Calibrated Sizes
16 x 12 mm 17 x 17 mm 18 x 13 mm 19 x 19 mm 20 x 15 mm 20 x 20 mm
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Photos are of Actual Products for Sale
7.89ct Loose Jasper | 7.89 ct Oval Jasper, 18 x 13 mm From Indonesia, Photo A

7.89 ct Oval Jasper, 18 x 13 mm From Indonesia

Natural Jasper, Qty: 1 pc | 7.89 carat weight Jasper

7.89ct1 Piece
$ 17.36
18 x 13 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 7.89 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18 x 13 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 1
Jasper Certificate: GemSelect
Product Description:
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21.58ct Loose Jasper | 21.58 ct Oval Jasper, 17.9 x 13.2 mm From Indonesia, Photo A

21.58 ct Oval Jasper, 17.9 x 13.2 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 21.58 carat weight Jasper

21.58ct (total)2 Pieces
$ 23.74
17.9 x 13.2 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 10.79 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 17.9 x 13.2 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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9.73ct Loose Jasper | 9.73 ct Oval Jasper, 18.1 x 13.2 mm From Indonesia, Photo A

9.73 ct Oval Jasper, 18.1 x 13.2 mm From Indonesia

Natural Jasper, Qty: 1 pc | 9.73 carat weight Jasper

9.73ct1 Piece
$ 21.41
18.1 x 13.2 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 9.73 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18.1 x 13.2 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 1
Jasper Certificate: GemSelect
Product Description:
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19.64ct Loose Jasper | 19.64 ct Oval Jasper, 18.1 x 13.1 mm From Indonesia, Photo A

19.64 ct Oval Jasper, 18.1 x 13.1 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 19.64 carat weight Jasper

19.64ct (total)2 Pieces
$ 21.60
18.1 x 13.1 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 9.82 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18.1 x 13.1 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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22.45ct Loose Jasper | 22.45 ct Oval Jasper, 17.9 x 12.9 mm From Indonesia, Photo A

22.45 ct Oval Jasper, 17.9 x 12.9 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 22.45 carat weight Jasper

22.45ct (total)2 Pieces
$ 24.70
17.9 x 12.9 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 11.23 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 17.9 x 12.9 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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19.77ct Loose Jasper | 19.77 ct Oval Jasper, 17.9 x 13.1 mm From Indonesia, Photo A

19.77 ct Oval Jasper, 17.9 x 13.1 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 19.77 carat weight Jasper

19.77ct (total)2 Pieces
$ 43.49
17.9 x 13.1 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 9.89 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 17.9 x 13.1 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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25.02ct Loose Jasper | 25.02 ct Oval Jasper, 18 x 13.1 mm From Indonesia, Photo A

25.02 ct Oval Jasper, 18 x 13.1 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 25.02 carat weight Jasper

25.02ct (total)2 Pieces
$ 27.52
18 x 13.1 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 12.51 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18 x 13.1 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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23.48ct Loose Jasper | 23.48 ct Oval Jasper, 18 x 13.2 mm From Indonesia, Photo A

23.48 ct Oval Jasper, 18 x 13.2 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 23.48 carat weight Jasper

23.48ct (total)2 Pieces
$ 25.83
18 x 13.2 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 11.74 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18 x 13.2 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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21.62ct Loose Jasper | 21.62 ct Oval Jasper, 18 x 13 mm From Indonesia, Photo A

21.62 ct Oval Jasper, 18 x 13 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 21.62 carat weight Jasper

21.62ct (total)2 Pieces
$ 23.78
18 x 13 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 10.81 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18 x 13 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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18.63ct Loose Jasper | 18.63 ct Oval Jasper, 18 x 13.2 mm From Indonesia, Photo A

18.63 ct Oval Jasper, 18 x 13.2 mm From Indonesia

Natural Jasper, Qty: 2 pcs | 18.63 carat weight Jasper

18.63ct (total)2 Pieces
$ 20.49
18 x 13.2 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 9.32 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18 x 13.2 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 2
Jasper Certificate: GemSelect
Product Description:
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Add to Cart
13.04ct Loose Jasper | 13.04 ct Oval Jasper, 18.5 x 13.1 mm From Indonesia, Photo A

13.04 ct Oval Jasper, 18.5 x 13.1 mm From Indonesia

Natural Jasper, Qty: 1 pc | 13.04 carat weight Jasper

13.04ct1 Piece
$ 7.30
18.5 x 13.1 mm
Item Description
Stone Type: Loose Jasper
Jasper Weight: 13.04 ct Jasper
Jasper Shape: Oval Cabochon Jasper
Jasper Size: 18.5 x 13.1 mm Jasper
Jasper Color: Multicolor Jasper
Jasper Clarity: Opaque Jasper
Jasper Origin: Indonesia Jasper
Jasper Treatment: Untreated
Jasper Quantity: 1
Jasper Certificate: GemSelect
Product Description:
View Details
Add to Cart

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated oval shapes, facet cut and cabochon gems available now in 18 x13 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not usually expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

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