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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: 3937362 pcs
2.24ctw Hessonite Garnet
6.76 x 4.99 x 3.32mm
USD 31.36
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ID: 3988394 pcs
5.56ctw Hessonite Garnet
6.92 x 5.01 x 3.99mm
USD 111.20
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ID: 4305021 pcs
1.52ct Zircon
7.13 x 4.94 x 3.28mm
USD 38.00
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ID: 3939802 pcs
1.90ctw Hessonite Garnet
6.93 x 4.92 x 2.80mm
USD 26.60
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ID: 2756755 pcs
5.40ctw Citrine
6.85 x 5.13 x 3.95mm
USD 28.35
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ID: 3938512 pcs
2.57ctw Hessonite Garnet
6.93 x 5.09 x 3.71mm
USD 35.98
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ID: 4053234 pcs
4.71ctw Topaz
7.06 x 5.07 x 3.45mm
USD 32.73
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ID: 3715216 pcs
6.76ctw Almandine Garnet
6.98 x 4.97 x 3.00mm
USD 33.80
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ID: 2756686 pcs
6.86ctw Citrine
7.04 x 5.02 x 3.97mm
USD 36.02
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ID: 4052344 pcs
5.02ctw Topaz
7.13 x 5.10 x 3.76mm
USD 34.89
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ID: 4052384 pcs
4.92ctw Topaz
7.25 x 5.17 x 3.52mm
USD 34.19
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ID: 4305001 pcs
1.51ct Zircon
7.16 x 4.84 x 3.26mm
USD 37.75
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ID: 3970181 pcs
1.03ct Color-Change Diaspore
6.75 x 4.87 x 3.40mm
USD 49.19
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ID: 3786031 pcs
0.99ct Tourmaline
6.99 x 5.05 x 3.51mm
USD 45.04
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ID: 3921444 pcs
4.86ctw Hessonite Garnet
6.92 x 5.06 x 3.50mm
USD 97.20
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ID: 2883894 pcs
4.89ctw Kyanite
7.13 x 5.12 x 3.32mm
USD 116.14
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ID: 3942764 pcs
4.04ctw Hessonite Garnet
6.77 x 4.90 x 3.04mm
USD 56.36
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ID: 3919302 pcs
2.59ctw Hessonite Garnet
7.00 x 5.18 x 3.69mm
USD 51.80
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ID: 3949574 pcs
4.86ctw Hessonite Garnet
6.87 x 4.99 x 3.61mm
USD 67.21
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ID: 3941032 pcs
2.98ctw Hessonite Garnet
6.91 x 5.04 x 4.56mm
USD 41.57
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ID: 3988384 pcs
4.36ctw Hessonite Garnet
6.77 x 4.98 x 3.23mm
USD 87.20
Item in Stock
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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