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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (212): 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: 4297951 pcs
1.54ct Zircon
7.03mm x 4.95mm x 3.06mm
USD 23.10
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ID: 2883974 pcs
4.90ctw Kyanite
6.96mm x 5.07mm x 3.09mm
USD 116.38
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ID: 4297172 pcs
2.77ctw Zircon
7.19mm x 4.93mm x 2.72mm
USD 41.55
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ID: 4298701 pcs
1.58ct Zircon
7.09mm x 4.99mm x 3.33mm
USD 23.70
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ID: 37153710 pcs
12.18ctw Almandine Garnet
6.92mm x 4.93mm x 3.33mm
USD 60.90
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ID: 3787101 pcs
1.10ct Tourmaline
7.11mm x 5.06mm x 3.69mm
USD 50.05
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ID: 4297212 pcs
3.09ctw Zircon
7.14mm x 5.13mm x 2.89mm
USD 46.35
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ID: 4202483 pcs
2.90ctw Emerald
6.94mm x 4.90mm x 3.65mm
USD 749.30
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ID: 3965491 pcs
1.09ct Color-Change Diaspore
6.97mm x 4.86mm x 3.59mm
USD 52.06
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ID: 3941062 pcs
2.61ctw Hessonite Garnet
6.92mm x 4.98mm x 4.10mm
USD 36.41
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ID: 4304981 pcs
1.87ct Zircon
7.17mm x 5.08mm x 3.63mm
USD 46.75
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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: 37153410 pcs
12.70ctw Almandine Garnet
7.06mm x 5.11mm x 3.03mm
USD 63.50
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ID: 4052364 pcs
4.34ctw Topaz
6.97mm x 4.93mm x 3.47mm
USD 30.16
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ID: 2857251 pcs
1.22ct Zircon
7.09mm x 4.85mm x 2.65mm
USD 16.65
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ID: 3963381 pcs
0.86ct Color-Change Diaspore
6.95mm x 4.87mm x 2.62mm
USD 41.07
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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: 2751585 pcs
5.57ctw Citrine
7.09mm x 5.08mm x 4.03mm
USD 29.24
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ID: 4053234 pcs
4.71ctw Topaz
7.06mm x 5.07mm x 3.45mm
USD 32.73
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ID: 3970181 pcs
1.03ct Color-Change Diaspore
6.75mm x 4.87mm x 3.40mm
USD 49.19
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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