New Arrivals Pairs Lots Contact
  : Octagon Shape 8x6 mm Gems
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (155): Octagon Shape 8x6 mm Gems Clear All
Sort By:
Compare
ID: 3673491 pcs
1.95ct Topaz
7.95mm x 6.02mm x 4.19mm
USD 12.42
Item in Stock
Compare
ID: 3369651 pcs
1.74ct Tanzanite
8.18mm x 6.09mm x 3.55mm
USD 497.64
Item in Stock
Compare
ID: 3722714 pcs
8.62ctw Topaz
8.12mm x 6.13mm x 4.24mm
USD 60.34
Item in Stock
Compare
ID: 3731624 pcs
8.19ctw Topaz
8.06mm x 6.00mm x 4.08mm
USD 49.80
Item in Stock
Compare
ID: 3723544 pcs
8.25ctw Topaz
8.13mm x 6.16mm x 4.09mm
USD 57.75
Item in Stock
Compare
ID: 4239555 pcs
7.17ctw Amethyst
7.98mm x 5.95mm x 4.14mm
USD 43.02
Item in Stock
Compare
ID: 4243761 pcs
1.90ct Tourmaline
8.01mm x 6.00mm x 4.78mm
USD 293.25
Item in Stock
Compare
ID: 3723244 pcs
8.49ctw Topaz
8.12mm x 6.09mm x 4.18mm
USD 59.43
Item in Stock
Compare
ID: 3988364 pcs
6.03ctw Hessonite Garnet
8.03mm x 6.05mm x 3.02mm
USD 120.60
Item in Stock
Compare
ID: 3346884 pcs
7.78ctw Topaz
8.06mm x 6.06mm x 4.00mm
USD 50.40
Item in Stock
Compare
ID: 3723234 pcs
8.04ctw Topaz
7.97mm x 5.95mm x 4.16mm
USD 56.28
Item in Stock
Compare
ID: 3723494 pcs
7.46ctw Topaz
7.99mm x 5.95mm x 4.17mm
USD 52.22
Item in Stock
Compare
ID: 3722804 pcs
8.01ctw Topaz
8.05mm x 6.04mm x 4.16mm
USD 56.07
Item in Stock
Compare
ID: 3723784 pcs
8.02ctw Topaz
8.10mm x 6.03mm x 4.09mm
USD 56.14
Item in Stock
Compare
ID: 3722994 pcs
7.78ctw Topaz
8.15mm x 6.16mm x 3.91mm
USD 54.46
Item in Stock
Compare
ID: 3724154 pcs
7.97ctw Topaz
8.05mm x 6.02mm x 4.12mm
USD 55.79
Item in Stock
Compare
ID: 3723774 pcs
7.76ctw Topaz
8.03mm x 6.02mm x 4.07mm
USD 54.32
Item in Stock
Compare
ID: 3813991 pcs
1.86ct Topaz
7.87mm x 5.89mm x 4.08mm
USD 13.02
Item in Stock
Compare
ID: 3723284 pcs
7.75ctw Topaz
8.16mm x 6.13mm x 3.73mm
USD 54.25
Item in Stock
Compare
ID: 3723204 pcs
7.18ctw Topaz
8.01mm x 6.01mm x 3.65mm
USD 50.26
Item in Stock
Compare
ID: 4287551 pcs
1.76ct Tourmaline
8.15mm x 6.10mm x 4.41mm
USD 264.00
Item in Stock
1
2
3
4
5
6
7
8
Octagon Shape 8x6 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 8 x 6 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:
+66-39340503

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