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Home › Calibrated Gemstones › Square Shape 13x13 mm Gems

Calibrated Square Cut Gemstones in Size 13x13 mm

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3.64ctw Natural Scarlet Red Pyrope Garnet, Square, VS, Photo A

3.64ctw Natural Scarlet Red Pyrope Garnet, Square, VS

Pyrope Garnet

3.64ct total10 pcs
$ 27.92
4 x 4 mm (calibrated)
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1.29ct Natural Medium Dark-Orange Hessonite Garnet, Oval, VS, Photo A

1.29ct Natural Medium Dark-Orange Hessonite Garnet, Oval, VS

Hessonite Garnet

1.29ct1 pc
$ 19.71
7.2 x 5.8 mm
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11.72ct Natural Pale Red Orange Strawberry Quartz, Oval, Translucent, Photo A

11.72ct Natural Pale Red Orange Strawberry Quartz, Oval, Translucent

Strawberry Quartz

11.72ct1 pc
$ 89.88
17.3 x 13.7 mm
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0.40ct Natural Light Yellow Color-Change Diaspore, Oval, VS, Photo A

0.40ct Natural Light Yellow Color-Change Diaspore, Oval, VS

Color-Change Diaspore

0.40ct1 pc
$ 21.12
4.7 x 3.8 mm
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1.00ct Natural Medium Orange Zircon, Oval, VS, Photo A

1.00ct Natural Medium Orange Zircon, Oval, VS

Zircon

1.00ct1 pc
$ 14.94
6 x 4.8 mm
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1.07ct Natural Dark Red Ruby, Oval, SI, Photo A
Ruby Product Video (569424)

1.07ct Natural Dark Red Ruby, Oval, SI

Ruby

1.07ct1 pc
$ 785.45
6.3 x 5.2 mm
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13.03ct Natural Caramel Brown Star Sunstone, Oval, Opaque, Photo A

13.03ct Natural Caramel Brown Star Sunstone, Oval, Opaque

Star Sunstone

13.03ct1 pc
$ 108.15
13 x 13 mm (calibrated)
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0.85ct Natural Medium Orange Sphalerite, Round, VS-SI, Photo A

0.85ct Natural Medium Orange Sphalerite, Round, VS-SI

Sphalerite

0.85ct1 pc
$ 42.33
5.5 mm (calibrated)
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1.23ct Natural Dark Magenta-Pink Rhodolite Garnet, Oval, VVS-VS, Photo A

1.23ct Natural Dark Magenta-Pink Rhodolite Garnet, Oval, VVS-VS

Rhodolite Garnet

1.23ct1 pc
$ 42.88
7.2 x 5.6 mm
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2.51ct Natural Deep Blue Star Sapphire, Round, Opaque, Photo A

2.51ct Natural Deep Blue Star Sapphire, Round, Opaque

Star Sapphire

2.51ct1 pc
$ 55.00
7.5 mm (calibrated)
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5.79ctw Natural Sky Blue Topaz, Heart, VVS, Photo A

5.79ctw Natural Sky Blue Topaz, Heart, VVS

Topaz

5.79ct total2 pcs
$ 41.43
9 x 9 mm (calibrated)
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15.15ct Natural Schorl Tourmaline, Cushion, Opaque, Photo A

15.15ct Natural Schorl Tourmaline, Cushion, Opaque

Tourmaline

15.15ct1 pc
$ 75.45
15.8 x 13.8 mm
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11.37ct Natural Bubblegum Pink Rose Quartz, Octagon / Emerald Cut, Transparent, Photo A

11.37ct Natural Bubblegum Pink Rose Quartz, Octagon / Emerald Cut, Transparent

Rose Quartz

11.37ct1 pc
$ 62.29
14 x 14 mm (calibrated)
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2.26ct Natural Medium Gold Citrine, Trillion, VVS-VS, Photo A

2.26ct Natural Medium Gold Citrine, Trillion, VVS-VS

Citrine

2.26ct1 pc
$ 9.90
9 x 9 mm (calibrated)
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2.38ctw Natural Medium Red Rhodolite Garnet, Square, VS, Photo A

2.38ctw Natural Medium Red Rhodolite Garnet, Square, VS

Rhodolite Garnet

2.38ct total4 pcs
$ 20.83
4.9 x 4.8 mm
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1.44ct Natural Warm Earthy Green Tourmaline, Oval, Transparent, Photo A

1.44ct Natural Warm Earthy Green Tourmaline, Oval, Transparent

Tourmaline

1.44ct1 pc
$ 23.86
8 x 6 mm (calibrated)
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6.90ct Natural Medium Green Agate, Oval, Translucent, Photo A

6.90ct Natural Medium Green Agate, Oval, Translucent

Agate

6.90ct1 pc
$ 6.04
12.5 x 11.6 mm
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3.25ct Natural Swiss Blue Topaz, Marquise, VS, Photo A

3.25ct Natural Swiss Blue Topaz, Marquise, VS

Topaz

3.25ct1 pc
$ 24.93
14.8 x 7 mm
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4.19ct Natural Golden Orange Citrine, Oval, VVS-VS, Photo A

4.19ct Natural Golden Orange Citrine, Oval, VVS-VS

Citrine

4.19ct1 pc
$ 25.16
14 x 10 mm (calibrated)
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3.09ct Natural Iris Violet Amethyst, Trillion, VS, Photo A

3.09ct Natural Iris Violet Amethyst, Trillion, VS

Amethyst

3.09ct1 pc
$ 16.93
10 x 10 mm (calibrated)
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56.25ct Natural Multicolor Tiger's Eye Matrix, Pear Shape, Opaque, Photo A

56.25ct Natural Multicolor Tiger's Eye Matrix, Pear Shape, Opaque

Tiger's Eye Matrix

56.25ct1 pc
$ 25.21
37 x 24.6 mm
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0.04ct Natural Blue Diamond, Square, VVS-VS, Photo A

0.04ct Natural Blue Diamond, Square, VVS-VS

Diamond

0.04ct1 pc
$ 44.71
2 x 2 mm (calibrated)
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7.66ct Natural Medium Yellow Citrine, Round, VVS-VS, Photo A

7.66ct Natural Medium Yellow Citrine, Round, VVS-VS

Citrine

7.66ct1 pc
$ 41.96
13 mm (calibrated)
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1.87ct Natural Medium Blue Kyanite, Oval, SI, Photo A

1.87ct Natural Medium Blue Kyanite, Oval, SI

Kyanite

1.87ct1 pc
$ 40.98
8 x 6 mm (calibrated)
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0.44ct Natural Pastel Blue Sapphire, Heart, VS, Photo A

0.44ct Natural Pastel Blue Sapphire, Heart, VS

Sapphire

0.44ct1 pc
$ 30.68
4.7 x 4.7 mm
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1.36ct Natural Deep Orange Hessonite Garnet, Cushion, VS, Photo A

1.36ct Natural Deep Orange Hessonite Garnet, Cushion, VS

Hessonite Garnet

1.36ct1 pc
$ 27.09
7 x 5 mm (calibrated)
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1.15ct Natural Medium Orange Sunstone, Oval, Translucent, Photo A

1.15ct Natural Medium Orange Sunstone, Oval, Translucent

Sunstone

1.15ct1 pc
$ 6.68
8 x 6 mm (calibrated)
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7.69ct Natural Forest Green Agate, Oval, Translucent, Photo A

7.69ct Natural Forest Green Agate, Oval, Translucent

Agate

7.69ct1 pc
$ 5.89
12.9 x 11.9 mm
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1.23ct Natural Dark Purple Spinel, Oval, VS, Photo A

1.23ct Natural Dark Purple Spinel, Oval, VS

Spinel

1.23ct1 pc
$ 149.75
6.3 x 5.6 mm
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8.03ctw Natural Very Light Green Prehnite, Oval, Transparent/Translucent, Photo A

8.03ctw Natural Very Light Green Prehnite, Oval, Transparent/Translucent

Prehnite

8.03ct total4 pcs
$ 43.99
8.3 x 7.5 mm
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1.23ct Natural Medium Gold Citrine, Octagon / Emerald Cut, VVS, Photo A

1.23ct Natural Medium Gold Citrine, Octagon / Emerald Cut, VVS

Citrine

1.23ct1 pc
$ 8.57
8 x 6 mm (calibrated)
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8.49ct Natural Multicolor Ruby-Zoisite, Trillion, Opaque, Photo A

8.49ct Natural Multicolor Ruby-Zoisite, Trillion, Opaque

Ruby-Zoisite

8.49ct1 pc
$ 23.25
16.3 x 10.8 mm
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Why Buy Square Shape 13x13 Mm Gems from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

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 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate
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