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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (200): Octagon Shape 7x5 mm Gems Clear All
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ID: 3921444 pcs
4.86ctw Hessonite Garnet
6.92mm x 5.06mm x 3.50mm
USD 97.20
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ID: 4297262 pcs
3.40ctw Zircon
7.10mm x 5.03mm x 3.42mm
USD 51.00
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ID: 4051154 pcs
4.26ctw Topaz
7.05mm x 5.04mm x 3.27mm
USD 29.61
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ID: 2756885 pcs
5.05ctw Citrine
6.98mm x 5.08mm x 3.58mm
USD 26.51
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ID: 4305031 pcs
1.41ct Zircon
6.90mm x 4.96mm x 3.06mm
USD 35.25
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ID: 3919334 pcs
5.00ctw Hessonite Garnet
6.84mm x 4.97mm x 3.56mm
USD 100.00
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ID: 3789081 pcs
1.01ct Tourmaline
7.15mm x 5.05mm x 3.35mm
USD 45.96
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ID: 4297951 pcs
1.54ct Zircon
7.03mm x 4.95mm x 3.06mm
USD 23.10
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ID: 3396474 pcs
4.48ctw Almandine Garnet
7.06mm x 5.00mm x 2.94mm
USD 24.46
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ID: 3938512 pcs
2.57ctw Hessonite Garnet
6.93mm x 5.09mm x 3.71mm
USD 35.98
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ID: 4298651 pcs
1.35ct Zircon
7.22mm x 4.88mm x 2.86mm
USD 20.25
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ID: 2756676 pcs
6.92ctw Citrine
7.13mm x 5.08mm x 4.05mm
USD 36.33
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ID: 4297881 pcs
1.72ct Zircon
7.21mm x 5.05mm x 3.30mm
USD 25.80
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ID: 2883754 pcs
5.45ctw Kyanite
7.13mm x 5.16mm x 3.51mm
USD 129.44
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ID: 3939812 pcs
2.43ctw Hessonite Garnet
6.75mm x 4.97mm x 3.67mm
USD 34.02
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ID: 4052344 pcs
5.02ctw Topaz
7.13mm x 5.10mm x 3.76mm
USD 34.89
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ID: 4052404 pcs
4.29ctw Topaz
7.05mm x 5.03mm x 3.36mm
USD 29.82
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ID: 4298611 pcs
1.34ct Zircon
7.23mm x 4.89mm x 2.62mm
USD 20.10
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ID: 4218901 pcs
0.88ct Kornerupine
7.27mm x 4.85mm x 2.61mm
USD 68.43
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ID: 4298681 pcs
1.83ct Zircon
7.15mm x 4.95mm x 3.60mm
USD 27.45
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ID: 3742481 pcs
0.90ct Emerald
7.20mm x 5.00mm x 3.25mm
USD 251.62
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Octagon Shape 7x5 mm Gems
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 Octagon shape / Emerald-Cut, faceted and cabochon gems available now in 7 x 5 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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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart