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Buy Octagon Shape 20x15 mm Gems

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Octagon Shape 20x15 mm Gems Weight Octagon Shape 20x15 mm Gems Size Octagon Shape 20x15 mm Gems Clarity Octagon Shape 20x15 mm Gems Price Octagon Shape 20x15 mm Gems Origin
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Octagon Shape 20x15 mm Gems Single
Octagon Shape 20x15 mm Gems Pairs
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Octagon Shape 20x15 mm Gems Faceted
Octagon Shape 20x15 mm Gems Cabochons
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15 x 15 mm 15 mm 16 x 16 mm 16 x 12 mm 16 mm 17 mm 17 x 17 mm 18 x 18 mm 18 mm 18 x 13 mm 19 mm 20 x 15 mm 20 mm
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19.55ct Loose Hematite | 19.55 ct Octagon / Emerald Cut Hematite, 20.6 x 15 mm From Brazil, Photo A

19.55 ct Octagon / Emerald Cut Hematite, 20.6 x 15 mm From Brazil

Natural Hematite, Qty: 1 pc | 19.55 carat weight Hematite

19.55ct1 Piece
$ 21.51
20.6 x 15 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 19.55 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 20.6 x 15 mm Hematite
Hematite Color: Silver Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 1
Hematite Certificate: GemSelect
Product Description:
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16.50ct Loose Hematite | 16.5 ct Octagon / Emerald Cut Hematite, 19.8 x 15 mm From Brazil, Photo A

16.5 ct Octagon / Emerald Cut Hematite, 19.8 x 15 mm From Brazil

Natural Hematite, Qty: 1 pc | 16.50 carat weight Hematite

16.50ct1 Piece
$ 15.25
19.8 x 15 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 16.50 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.8 x 15 mm Hematite
Hematite Color: Black Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 1
Hematite Certificate: GemSelect
Product Description:
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34.87ct Loose Hematite | 34.87 ct Octagon / Emerald Cut Hematite, 19.4 x 15.1 mm From Brazil, Photo A

34.87 ct Octagon / Emerald Cut Hematite, 19.4 x 15.1 mm From Brazil

Natural Hematite, Qty: 2 pcs | 34.87 carat weight Hematite

34.87ct (total)2 Pieces
$ 34.13
19.4 x 15.1 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 17.44 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.4 x 15.1 mm Hematite
Hematite Color: Black Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 2
Hematite Certificate: GemSelect
Product Description:
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36.84ct Loose Hematite | 36.84 ct Octagon / Emerald Cut Hematite, 19.2 x 14.6 mm From Brazil, Photo A

36.84 ct Octagon / Emerald Cut Hematite, 19.2 x 14.6 mm From Brazil

Natural Hematite, Qty: 2 pcs | 36.84 carat weight Hematite

36.84ct (total)2 Pieces
$ 32.79
19.2 x 14.6 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 18.42 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.2 x 14.6 mm Hematite
Hematite Color: Black Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 2
Hematite Certificate: GemSelect
Product Description:
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19.67ct Loose Hematite | 19.67 ct Octagon / Emerald Cut Hematite, 19.9 x 15.2 mm From Brazil, Photo A

19.67 ct Octagon / Emerald Cut Hematite, 19.9 x 15.2 mm From Brazil

Natural Hematite, Qty: 1 pc | 19.67 carat weight Hematite

19.67ct1 Piece
$ 21.64
19.9 x 15.2 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 19.67 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.9 x 15.2 mm Hematite
Hematite Color: Medium Grey Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 1
Hematite Certificate: GemSelect
Product Description:
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41.25ct Loose Hematite | 41.25 ct Octagon / Emerald Cut Hematite, 19.8 x 15.1 mm From Brazil, Photo A

41.25 ct Octagon / Emerald Cut Hematite, 19.8 x 15.1 mm From Brazil

Natural Hematite, Qty: 2 pcs | 41.25 carat weight Hematite

41.25ct (total)2 Pieces
$ 40.38
19.8 x 15.1 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 20.63 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.8 x 15.1 mm Hematite
Hematite Color: Black Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 2
Hematite Certificate: GemSelect
Product Description:
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17.55ct Loose Hematite | 17.55 ct Octagon / Emerald Cut Hematite, 19.7 x 14.4 mm From Brazil, Photo A

17.55 ct Octagon / Emerald Cut Hematite, 19.7 x 14.4 mm From Brazil

Natural Hematite, Qty: 1 pc | 17.55 carat weight Hematite

17.55ct1 Piece
$ 19.31
19.7 x 14.4 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 17.55 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.7 x 14.4 mm Hematite
Hematite Color: Medium Grey Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 1
Hematite Certificate: GemSelect
Product Description:
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21.42ct Loose Hematite | 21.42 ct Octagon / Emerald Cut Hematite, 20.6 x 15.1 mm From Brazil, Photo A

21.42 ct Octagon / Emerald Cut Hematite, 20.6 x 15.1 mm From Brazil

Natural Hematite, Qty: 1 pc | 21.42 carat weight Hematite

21.42ct1 Piece
$ 21.68
20.6 x 15.1 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 21.42 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 20.6 x 15.1 mm Hematite
Hematite Color: Medium Grey Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 1
Hematite Certificate: GemSelect
Product Description:
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Add to Cart
37.51ct Loose Hematite | 37.51 ct Octagon / Emerald Cut Hematite, 19.5 x 14.9 mm From Brazil, Photo A

37.51 ct Octagon / Emerald Cut Hematite, 19.5 x 14.9 mm From Brazil

Natural Hematite, Qty: 2 pcs | 37.51 carat weight Hematite

37.51ct (total)2 Pieces
$ 36.72
19.5 x 14.9 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 18.76 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 19.5 x 14.9 mm Hematite
Hematite Color: Dark Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 2
Hematite Certificate: GemSelect
Product Description:
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40.49ct Loose Hematite | 40.49 ct Octagon / Emerald Cut Hematite, 20.2 x 15 mm From Brazil, Photo A

40.49 ct Octagon / Emerald Cut Hematite, 20.2 x 15 mm From Brazil

Natural Hematite, Qty: 2 pcs | 40.49 carat weight Hematite

40.49ct (total)2 Pieces
$ 36.04
20.2 x 15 mm
Item Description
Stone Type: Loose Hematite
Hematite Weight: 20.25 ct Hematite
Hematite Shape: Octagon Cabochon Hematite
Hematite Size: 20.2 x 15 mm Hematite
Hematite Color: Black Gray Hematite
Hematite Clarity: Opaque Hematite
Hematite Origin: Brazil Hematite
Hematite Treatment: Untreated
Hematite Quantity: 2
Hematite Certificate: GemSelect
Product Description:
View Details
Add to Cart

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 20 x 15 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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