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Buy Oval Shape 18x13 mm Gems

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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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1.02 ct Blue Kyanite, 6.9 x 4.9 mm Oval Cut From Nepal, Photo A

1.02 ct Blue Kyanite, 6.9 x 4.9 mm Oval Cut From Nepal

Kyanite

1.02ct1 pc
$ 25.50
6.9 x 4.9 mm
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2.04 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.3 x 6.8 mm, Photo A

2.04 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.3 x 6.8 mm

Hessonite Garnet

2.04ct1 pc
$ 37.39
8.3 x 6.8 mm
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10.42 ct Oval Tiger's Eye, 16.2 x 12.3 mm From Thailand, Photo A

10.42 ct Oval Tiger's Eye, 16.2 x 12.3 mm From Thailand

Tiger's Eye

10.42ct1 pc
$ 10.42
16.2 x 12.3 mm
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1.78 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5.1 mm, Photo A

1.78 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.1 x 5.1 mm

Pyrope Garnet

1.78ct total2 pcs
$ 13.71
5.1 x 5.1 mm
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1.23 ct Oval Sillimanite Cat's Eye, 7.6 x 5 mm From Madagascar, Photo A

1.23 ct Oval Sillimanite Cat's Eye, 7.6 x 5 mm From Madagascar

Sillimanite Cat's Eye

1.23ct1 pc
$ 3.86
7.6 x 5 mm
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2.62 ct Black Star Sapphire, 9.2 x 7.2 mm Oval Cut From Thailand, Photo A

2.62 ct Black Star Sapphire, 9.2 x 7.2 mm Oval Cut From Thailand

Star Sapphire

2.62ct1 pc
$ 47.16
9.2 x 7.2 mm
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2.71 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 9.1 x 7.1 mm, Photo A

2.71 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 9.1 x 7.1 mm

Tanzanite

2.71ct1 pc
$ 23.55
9.1 x 7.1 mm
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0.76 ct Loose Pink Sapphire, 5 x 4.1 mm Oval Cut From Tanzania, Photo A

0.76 ct Loose Pink Sapphire, 5 x 4.1 mm Oval Cut From Tanzania

Sapphire

0.76ct total2 pcs
$ 51.53
5 x 4.1 mm
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0.57 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 4.9 mm, Photo A

0.57 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gem, 4.9 mm

Sapphire

0.57ct1 pc
$ 350.47
4.9 mm
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0.55 ct Loose Purple Sapphire, 5.9 x 4 mm Oval Cut From Madagascar, Photo A

0.55 ct Loose Purple Sapphire, 5.9 x 4 mm Oval Cut From Madagascar

Sapphire

0.55ct1 pc
$ 165.00
5.9 x 4 mm
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13.3 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gems, 11.1 mm, Photo A

13.3 carat Pink Topaz, Round loose Topaz from Brazil, Natural Gems, 11.1 mm

Topaz

13.30ct total2 pcs
$ 106.40
11.1 mm
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2.98 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.9 x 8 mm, Photo A

2.98 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 9.9 x 8 mm

Citrine

2.98ct1 pc
$ 16.39
9.9 x 8 mm
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18.18 carat Cushion Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 19.2 x 19.1 mm, Photo A

18.18 carat Cushion Dendritic Agate, loose Certified Dendritic Agate from India, Natural Untreated Gem, 19.2 x 19.1 mm

Dendritic Agate

18.18ct1 pc
$ 36.36
19.2 x 19.1 mm
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0.87 ct Loose Pink Sapphire, 8.4 x 4.9 mm Odd Shaped From Madagascar, Photo A

0.87 ct Loose Pink Sapphire, 8.4 x 4.9 mm Odd Shaped From Madagascar

Sapphire

0.87ct1 pc
$ 97.33
8.4 x 4.9 mm
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1.84 ct Oval Prehnite, 8.1 x 7.6 mm From South Africa, Photo A

1.84 ct Oval Prehnite, 8.1 x 7.6 mm From South Africa

Prehnite

1.84ct1 pc
$ 5.47
8.1 x 7.6 mm
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1.7 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm, Photo A

1.7 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 6.2 x 4.2 mm

Zircon

1.70ct total2 pcs
$ 10.18
6.2 x 4.2 mm
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1.16 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 5.1 x 4.1 mm, Photo A
Click for Product Video (684219)

1.16 carat Orange Spessartite Garnet, Oval loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 5.1 x 4.1 mm

Spessartite Garnet

1.16ct total2 pcs
$ 40.60
5.1 x 4.1 mm
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2.75 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.2 mm, Photo A

2.75 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5.2 mm

Zircon

2.75ct total2 pcs
$ 26.80
7.1 x 5.2 mm
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3.07 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.6 mm, Photo A

3.07 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.6 mm

Topaz

3.07ct total6 pcs
$ 16.89
4.6 x 4.6 mm
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0.82 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 4.5 mm, Photo A

0.82 carat Green Sapphire, Cushion loose Sapphire from Madagascar, Natural Gem, 5.6 x 4.5 mm

Sapphire

0.82ct1 pc
$ 65.60
5.6 x 4.5 mm
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0.6 ct Loose Yellow Sapphire, 6.1 x 4.1 mm Oval Cut From Tanzania, Photo A

0.6 ct Loose Yellow Sapphire, 6.1 x 4.1 mm Oval Cut From Tanzania

Sapphire

0.60ct1 pc
$ 34.15
6.1 x 4.1 mm
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3 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm, Photo A

3 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.5 mm

Topaz

3.00ct total6 pcs
$ 16.50
4.6 x 4.5 mm
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0.82 ct Cushion Cut Color-Change Diaspore, 7.1 x 4.4 mm From Turkey, Photo A

0.82 ct Cushion Cut Color-Change Diaspore, 7.1 x 4.4 mm From Turkey

Color-Change Diaspore

0.82ct1 pc
$ 27.06
7.1 x 4.4 mm
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8.68 ct Black Spinel, 10.2 mm Round Rose Cut From Thailand, Photo A

8.68 ct Black Spinel, 10.2 mm Round Rose Cut From Thailand

Spinel

8.68ct total2 pcs
$ 33.42
10.2 mm
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2.47 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.3 mm, Photo A

2.47 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7.3 mm

Hessonite Garnet

2.47ct1 pc
$ 40.18
7.3 mm
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9.76 ct Marquise Concave Cut Smoky Quartz, 18.9 x 13 mm From Brazil, Photo A

9.76 ct Marquise Concave Cut Smoky Quartz, 18.9 x 13 mm From Brazil

Smoky Quartz

9.76ct1 pc
$ 26.84
18.9 x 13 mm
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52.93 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 26.2 x 20.7 mm, Photo A
Click for Product Video (506002)

52.93 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 26.2 x 20.7 mm

Amethyst

52.93ct1 pc
$ 349.34
26.2 x 20.7 mm
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0.38 ct Loose Yellow Sapphire, 5.2 x 2.6 mm Marquise Cut From Tanzania, Photo A

0.38 ct Loose Yellow Sapphire, 5.2 x 2.6 mm Marquise Cut From Tanzania

Sapphire

0.38ct total2 pcs
$ 8.36
5.2 x 2.6 mm
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6.1 ct Oval Star Ruby, 11.5 x 9.3 mm From Madagascar, Photo A

6.1 ct Oval Star Ruby, 11.5 x 9.3 mm From Madagascar

Star Ruby

6.10ct1 pc
$ 80.52
11.5 x 9.3 mm
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1.96 ct Blue Apatite, 5.7 x 4.8 mm Oval Cut From Madagascar, Photo A

1.96 ct Blue Apatite, 5.7 x 4.8 mm Oval Cut From Madagascar

Apatite

1.96ct total3 pcs
$ 32.34
5.7 x 4.8 mm
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0.98 ct Green Sphene, 6.2 x 5.1 mm Oval Cut From Sri Lanka, Photo A

0.98 ct Green Sphene, 6.2 x 5.1 mm Oval Cut From Sri Lanka

Sphene

0.98ct1 pc
$ 4.90
6.2 x 5.1 mm
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0.02 ct Loose Green Diamond, 1.9 mm Diamond Cut From India, Photo A

0.02 ct Loose Green Diamond, 1.9 mm Diamond Cut From India

Diamond

0.02ct1 pc
$ 24.44
1.9 mm
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Photos are of Actual Products for Sale

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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