Jewelry New Arrivals Pairs Lots Contact
  : Octagon Shape 5x3 mm Gems
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (50): Octagon Shape 5x3 mm Gems Clear All
Sort By:
Compare
ID: 3349436 pcs
thumb image of 2ct Octagon / Scissor Cut Yellow Golden Sapphire (ID: 334943)
1.96 ct Sapphire
4.9 x 2.9 mm
$ 68.60
Quantity
Item in Stock
Compare
ID: 39971310 pcs
thumb image of 3.5ct Octagon Facet Swiss Blue Topaz (ID: 399713)
3.49 ct Topaz
5.1 x 3.1 mm
$ 24.43
Quantity
Item in Stock
Compare
ID: 4508138 pcs
thumb image of 2.8ct Octagon Step Cut Purple Pink Sapphire (ID: 450813)
2.76 ct Sapphire
5 x 3.1 mm
$ 110.40
Quantity
Item in Stock
Compare
ID: 4504516 pcs
thumb image of 2ct Octagon Step Cut Pink Sapphire (ID: 450451)
2.00 ct Sapphire
5 x 3 mm
$ 80.00
Quantity
Item in Stock
Compare
ID: 4504496 pcs
thumb image of 2.2ct Octagon Step Cut Purple Pink Sapphire (ID: 450449)
2.20 ct Sapphire
5 x 3.1 mm
$ 88.00
Quantity
Item in Stock
Compare
ID: 3349366 pcs
thumb image of 2.2ct Octagon / Scissor Cut Pinkish Purple Sapphire (ID: 334936)
2.16 ct Sapphire
5 x 3 mm
$ 75.60
Quantity
Item in Stock
Compare
ID: 3750215 pcs
thumb image of 1.8ct Octagon / Scissor Cut Yellow Orange Sapphire (ID: 375021)
1.84 ct Sapphire
5.1 x 3.1 mm
$ 78.11
Quantity
Item in Stock
Compare
ID: 3349406 pcs
thumb image of 2.1ct Octagon / Scissor Cut Multicolor Sapphire (ID: 334940)
2.05 ct Sapphire
4.9 x 3 mm
$ 71.75
Quantity
Item in Stock
Compare
ID: 33493310 pcs
thumb image of 2.8ct Octagon / Scissor Cut Yellow Golden Sapphire (ID: 334933)
2.78 ct Sapphire
4.9 x 3 mm
$ 97.30
Quantity
Item in Stock
Compare
ID: 4125786 pcs
thumb image of 2ct Octagon Step Cut Greenish Golden Sapphire (ID: 412578)
2.02 ct Sapphire
5 x 3.1 mm
$ 80.80
Quantity
Item in Stock
Compare
ID: 3349329 pcs
thumb image of 2.5ct Octagon / Scissor Cut Multicolor Sapphire (ID: 334932)
2.54 ct Sapphire
4.9 x 3 mm
$ 88.90
Quantity
Item in Stock
Compare
ID: 4122548 pcs
thumb image of 2.1ct Octagon Facet Violet Blue Iolite (ID: 412254)
2.05 ct Iolite
5 x 3.1 mm
$ 41.00
Quantity
Item in Stock
Compare
ID: 4504426 pcs
thumb image of 2ct Octagon Step Cut Purple Pink Sapphire (ID: 450442)
2.03 ct Sapphire
5.1 x 3 mm
$ 81.20
Quantity
Item in Stock
Compare
ID: 3747156 pcs
thumb image of 2.2ct Octagon / Scissor Cut Yellow Golden Sapphire (ID: 374715)
2.16 ct Sapphire
5 x 3 mm
$ 91.69
Quantity
Item in Stock
Compare
ID: 3350286 pcs
thumb image of 2.1ct Octagon / Scissor Cut Multicolor Sapphire (ID: 335028)
2.07 ct Sapphire
5 x 3 mm
$ 72.45
Quantity
Item in Stock
Compare
ID: 3747126 pcs
thumb image of 2.1ct Octagon / Scissor Cut Yellow Golden Sapphire (ID: 374712)
2.07 ct Sapphire
5 x 3 mm
$ 87.87
Quantity
Item in Stock
Compare
ID: 3349316 pcs
thumb image of 1.8ct Octagon / Scissor Cut Multicolor Sapphire (ID: 334931)
1.76 ct Sapphire
4.9 x 3 mm
$ 61.60
Quantity
Item in Stock
Compare
ID: 3350166 pcs
thumb image of 2ct Octagon / Scissor Cut Multicolor Sapphire (ID: 335016)
2.00 ct Sapphire
5 x 3 mm
$ 70.00
Quantity
Item in Stock
Compare
ID: 3750314 pcs
thumb image of 1.6ct Octagon / Scissor Cut Green Sapphire (ID: 375031)
1.59 ct Sapphire
5 x 3 mm
$ 67.50
Quantity
Item in Stock
Compare
ID: 34996520 pcs
thumb image of 6.6ct Octagon / Scissor Cut Multicolor Sapphire (ID: 349965)
6.60 ct Sapphire
5.1 x 3 mm
$ 231.00
Quantity
Item in Stock
Compare
ID: 4505226 pcs
thumb image of 2.2ct Octagon Step Cut Purple Pink Sapphire (ID: 450522)
2.18 ct Sapphire
5.1 x 3.1 mm
$ 87.20
Quantity
Item in Stock
1
2
3
Octagon Shape 5x3 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 5 x 3 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.

English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Reorder Items

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
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