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Home › Calibrated Gemstones › Square Shape 13x13 mm Gems

Calibrated Square Cut Gemstones in Size 13x13 mm

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2.21ct Natural Golden Citrine, Trillion, VVS-VS, Photo A

2.21ct Natural Golden Citrine, Trillion, VVS-VS

Citrine

2.21ct1 pc
$ 11.96
9 x 9 mm (calibrated)
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1.70ct Natural Brownish Green Tourmaline, Oval, VVS-VS, Photo A

1.70ct Natural Brownish Green Tourmaline, Oval, VVS-VS

Tourmaline

1.70ct1 pc
$ 253.98
7.9 x 6.8 mm
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0.06ct Natural Blue Diamond, Round, VVS-VS, Photo A

0.06ct Natural Blue Diamond, Round, VVS-VS

Diamond

0.06ct1 pc
$ 59.34
2.5 mm (calibrated)
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5.42ctw Natural Multicolor Labradorite, Round, Translucent, Photo A

5.42ctw Natural Multicolor Labradorite, Round, Translucent

Labradorite

5.42ct total2 pcs
$ 13.16
8 mm (calibrated)
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1.44ct Natural Yellowish Gold Citrine, Oval, Transparent, Photo A

1.44ct Natural Yellowish Gold Citrine, Oval, Transparent

Citrine

1.44ct1 pc
$ 11.05
10 x 8 mm (calibrated)
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2.69ct Natural Earthy Green Tourmaline, Octagon / Emerald Cut, VS, Photo A

2.69ct Natural Earthy Green Tourmaline, Octagon / Emerald Cut, VS

Tourmaline

2.69ct1 pc
$ 133.96
11.3 x 6 mm
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1.55ct Natural Deep Orange Hessonite Garnet, Square, VS-SI, Photo A

1.55ct Natural Deep Orange Hessonite Garnet, Square, VS-SI

Hessonite Garnet

1.55ct1 pc
$ 26.06
6 x 6 mm (calibrated)
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8.53ct Natural Golden Orange Citrine, Briolette, VVS, Photo A

8.53ct Natural Golden Orange Citrine, Briolette, VVS

Citrine

8.53ct1 pc
$ 48.51
15.9 x 9.5 mm
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0.39ct Natural Intense Pink Sapphire, Oval, VVS-VS, Photo A

0.39ct Natural Intense Pink Sapphire, Oval, VVS-VS

Sapphire

0.39ct1 pc
$ 39.36
5 x 4 mm (calibrated)
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35.66ctw Natural Black Gray Hematite, Marquise, Opaque, Photo A

35.66ctw Natural Black Gray Hematite, Marquise, Opaque

Hematite

35.66ct total2 pcs
$ 34.77
27.6 x 12.1 mm
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52.54ct Natural Cool Green Amazonite, Baguette, Opaque, Photo A

52.54ct Natural Cool Green Amazonite, Baguette, Opaque

Amazonite

52.54ct1 pc
$ 41.87
30.6 x 19.4 mm
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1.22ctw Natural Medium Red Pyrope Garnet, Heart, VS, Photo A

1.22ctw Natural Medium Red Pyrope Garnet, Heart, VS

Pyrope Garnet

1.22ct total2 pcs
$ 32.08
5 x 5 mm (calibrated)
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1.31ct Natural Light Yellow Citrine, Round, VS, Photo A

1.31ct Natural Light Yellow Citrine, Round, VS

Citrine

1.31ct1 pc
$ 9.13
7 mm (calibrated)
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0.18ct Natural Black Diamond, Square, Opaque, Photo A
Diamond Product Video (677863)

0.18ct Natural Black Diamond, Square, Opaque

Diamond

0.18ct1 pc
$ 89.64
2.7 x 2.6 mm
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21.27ct Natural Purplish Violet Amethyst, Cushion, VVS-VS, Photo A

21.27ct Natural Purplish Violet Amethyst, Cushion, VVS-VS

Amethyst

21.27ct1 pc
$ 148.30
18 x 18 mm (calibrated)
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1.24ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VVS, Photo A

1.24ct Natural Medium Green Tourmaline, Octagon / Emerald Cut, VVS

Tourmaline

1.24ct1 pc
$ 27.10
14.4 x 3.1 mm
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0.63ct Natural Blue-Green Sapphire, Cushion, VS, Photo A

0.63ct Natural Blue-Green Sapphire, Cushion, VS

Sapphire

0.63ct1 pc
$ 75.30
4.7 x 4.6 mm
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1.23ct Natural Swiss Blue Topaz, Trillion, VS, Photo A

1.23ct Natural Swiss Blue Topaz, Trillion, VS

Topaz

1.23ct1 pc
$ 9.43
6.9 x 6.7 mm
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0.33ct Natural Deep Golden Orange Sapphire, Heart, VVS-VS, Photo A

0.33ct Natural Deep Golden Orange Sapphire, Heart, VVS-VS

Sapphire

0.33ct1 pc
$ 20.38
4.4 x 4.4 mm
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0.49ct Natural Apricot Orange Sphalerite, Round, SI-I1, Photo A

0.49ct Natural Apricot Orange Sphalerite, Round, SI-I1

Sphalerite

0.49ct1 pc
$ 24.40
4.5 mm (calibrated)
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16.57ctw Natural Multicolor Agate, Cushion, Transparent, Photo A

16.57ctw Natural Multicolor Agate, Cushion, Transparent

Agate

16.57ct total2 pcs
$ 68.77
15 x 13.5 mm
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2.83ct Natural Golden-Orange Citrine, Oval, Transparent, Photo A

2.83ct Natural Golden-Orange Citrine, Oval, Transparent

Citrine

2.83ct1 pc
$ 21.70
10 x 8 mm (calibrated)
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5.50ct Natural Pale Yellow Rutile Quartz, Round, Transparent, Photo A

5.50ct Natural Pale Yellow Rutile Quartz, Round, Transparent

Rutile Quartz

5.50ct1 pc
$ 24.10
13 mm (calibrated)
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7.28ctw Natural Light Yellow Quartz, Flower Cut, Transparent, Photo A

7.28ctw Natural Light Yellow Quartz, Flower Cut, Transparent

Quartz

7.28ct total5 pcs
$ 27.92
8.4 x 8.4 mm
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2.25ctw Natural Multicolor Blue Mystic Quartz, Trillion, VVS-VS, Photo A

2.25ctw Natural Multicolor Blue Mystic Quartz, Trillion, VVS-VS

Mystic Quartz

2.25ct total2 pcs
$ 13.45
7 x 7 mm (calibrated)
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0.92ct Natural Medium Orange Hessonite Garnet, Oval, VVS-VS, Photo A

0.92ct Natural Medium Orange Hessonite Garnet, Oval, VVS-VS

Hessonite Garnet

0.92ct1 pc
$ 14.05
6.4 x 5.1 mm
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6.08ct Natural Sangria Violet Amethyst, Pear Shape, Transparent, Photo A

6.08ct Natural Sangria Violet Amethyst, Pear Shape, Transparent

Amethyst

6.08ct1 pc
$ 36.34
16.4 x 9.8 mm
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0.05ct Natural Blue Diamond, Round, VS-SI, Photo A

0.05ct Natural Blue Diamond, Round, VS-SI

Diamond

0.05ct1 pc
$ 41.50
2.1 mm (calibrated)
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1.09ct Natural Light Navy Blue Kyanite, Oval, VS-SI, Photo A

1.09ct Natural Light Navy Blue Kyanite, Oval, VS-SI

Kyanite

1.09ct1 pc
$ 23.89
7 x 5 mm (calibrated)
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10.04ct Natural Black Onyx, Pear Shape, Opaque, Photo A

10.04ct Natural Black Onyx, Pear Shape, Opaque

Onyx

10.04ct1 pc
$ 10.00
18 x 13 mm (calibrated)
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1.05ct Natural Light Green Emerald, Round, Translucent, Photo A

1.05ct Natural Light Green Emerald, Round, Translucent

Emerald

1.05ct1 pc
$ 83.66
6.5 mm (calibrated)
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0.90ct Natural Yellow Beige Color-Change Diaspore, Square, VVS-VS, Photo A

0.90ct Natural Yellow Beige Color-Change Diaspore, Square, VVS-VS

Color-Change Diaspore

0.90ct1 pc
$ 33.42
5.2 x 5.2 mm
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Why Buy Square Shape 13x13 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

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Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very pleasant

Posted By Varun in June, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I do enjoy this website and the wide selection. I would like to see more untreated stones. I also wasn't able to see my past order when I logged in.

Posted By Great selection, ok website in July, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate
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