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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (207): Octagon Shape 7x5 mm Gems Clear All
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ID: 4297232 pcs
2.94ctw Zircon
7.14mm x 4.94mm x 3.22mm
USD 44.10
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ID: 3921434 pcs
4.63ctw Hessonite Garnet
6.88mm x 5.03mm x 3.34mm
USD 92.60
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ID: 4297252 pcs
2.98ctw Zircon
7.15mm x 5.08mm x 2.83mm
USD 44.70
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ID: 3942764 pcs
4.04ctw Hessonite Garnet
6.77mm x 4.90mm x 3.04mm
USD 56.36
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ID: 3937292 pcs
2.44ctw Hessonite Garnet
6.88mm x 5.06mm x 3.43mm
USD 34.16
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ID: 4261631 pcs
0.96ct Tourmaline
7.23mm x 5.16mm x 3.13mm
USD 18.40
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ID: 37154210 pcs
10.59ctw Almandine Garnet
6.96mm x 4.93mm x 2.50mm
USD 52.95
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ID: 3235561 pcs
0.86ct Emerald
6.99mm x 5.04mm x 3.35mm
USD 227.04
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ID: 3939872 pcs
2.25ctw Hessonite Garnet
6.74mm x 4.88mm x 3.43mm
USD 31.50
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ID: 4314921 pcs
1.06ct Hessonite Garnet
6.90mm x 4.93mm x 3.05mm
USD 19.08
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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: 3937282 pcs
2.46ctw Hessonite Garnet
6.91mm x 4.93mm x 3.75mm
USD 34.44
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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: 2883724 pcs
5.13ctw Kyanite
7.13mm x 4.97mm x 3.28mm
USD 121.84
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ID: 3716838 pcs
10.90ctw Almandine Garnet
7.08mm x 5.05mm x 3.47mm
USD 54.50
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ID: 2751615 pcs
5.58ctw Citrine
7.09mm x 4.97mm x 4.10mm
USD 29.30
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ID: 3396584 pcs
4.06ctw Almandine Garnet
6.86mm x 4.85mm x 2.90mm
USD 22.17
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ID: 3379021 pcs
0.92ct Emerald
7.04mm x 4.98mm x 3.51mm
USD 248.40
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ID: 2883894 pcs
4.89ctw Kyanite
7.13mm x 5.12mm x 3.32mm
USD 116.14
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ID: 4051174 pcs
4.53ctw Topaz
6.97mm x 4.98mm x 3.51mm
USD 31.48
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ID: 4297921 pcs
1.50ct Zircon
7.21mm x 5.02mm x 3.01mm
USD 22.50
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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