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Buy Marquise Shape 12x6 mm Gems

(359)
Marquise Shape 12x6 mm Gems Weight Marquise Shape 12x6 mm Gems Size Marquise Shape 12x6 mm Gems Clarity Marquise Shape 12x6 mm Gems Price Marquise Shape 12x6 mm Gems Origin
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Photos are of Actual Products for Sale
3.95ct (total)2 Pieces
$ 69.52
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.98 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Medium Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.96 ct Marquise Tiger's Eye, 11.6 x 5.9 mm From Thailand

Natural Tiger's Eye, Qty: 1 pc | 1.96 carat weight Tiger's Eye

1.96ct1 Piece
$ 2.55
11.6 x 5.9 mm
Item Description
Stone Type: Loose Tiger's Eye
Tiger's Eye Weight: 1.96 ct Tiger's Eye
Tiger's Eye Shape: Marquise Cabochon Tiger's Eye
Tiger's Eye Size: 11.6 x 5.9 mm Tiger's Eye
Tiger's Eye Color: Warm Brown Tiger's Eye
Tiger's Eye Clarity: Opaque Tiger's Eye
Tiger's Eye Origin: Thailand Tiger's Eye
Tiger's Eye Treatment: Untreated
Tiger's Eye Quantity: 1
Tiger's Eye Certificate: GemSelect
Product Description:
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4.12ct (total)2 Pieces
$ 72.51
11.9 x 5.9 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.06 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.9 x 5.9 mm Pyrope Garnet
Pyrope Garnet Color: Currant Red Pyrope Garnet
Pyrope Garnet Clarity: VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.56ct1 Piece
$ 12.01
11.8 x 6.1 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.56 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 11.8 x 6.1 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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$ 2.56
12 x 5.9 mm
Item Description
Stone Type: Loose Tiger's Eye
Tiger's Eye Weight: 2.17 ct Tiger's Eye
Tiger's Eye Shape: Marquise Cabochon Tiger's Eye
Tiger's Eye Size: 12 x 5.9 mm Tiger's Eye
Tiger's Eye Color: Warm Brown Tiger's Eye
Tiger's Eye Clarity: Opaque Tiger's Eye
Tiger's Eye Origin: Thailand Tiger's Eye
Tiger's Eye Treatment: Untreated
Tiger's Eye Quantity: 1
Tiger's Eye Certificate: GemSelect
Product Description:
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1.75ct1 Piece
$ 13.48
12.2 x 6.1 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.75 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12.2 x 6.1 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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3.70ct (total)2 Pieces
$ 65.12
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.85 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.73ct1 Piece
$ 13.32
12 x 6 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.73 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12 x 6 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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1.88ct1 Piece
$ 14.48
12 x 6.2 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.88 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12 x 6.2 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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8.02ct (total)4 Pieces
$ 79.66
12 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.01 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Deep Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 4
Pyrope Garnet Certificate: GemSelect
Product Description:
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4.67ct (total)2 Pieces
$ 25.69
12.2 x 6.2 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 2.34 ct Topaz
Topaz Shape: Marquise Facet Topaz
Topaz Size: 12.2 x 6.2 mm Topaz
Topaz Color: Sky Blue Topaz
Topaz Clarity: VVS-VS Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 2
Topaz Certificate: GemSelect
Product Description:
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2.93ct (total)2 Pieces
$ 32.33
11.8 x 5.9 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.47 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.8 x 5.9 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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4.00ct (total)2 Pieces
$ 44.13
11.8 x 5.9 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.00 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.8 x 5.9 mm Pyrope Garnet
Pyrope Garnet Color: Dark Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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4.12ct (total)2 Pieces
$ 22.66
12.1 x 6.1 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 2.06 ct Topaz
Topaz Shape: Marquise Facet Topaz
Topaz Size: 12.1 x 6.1 mm Topaz
Topaz Color: Sky Blue Topaz
Topaz Clarity: VS Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 2
Topaz Certificate: GemSelect
Product Description:
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1.77ct1 Piece
$ 11.68
12 x 6.1 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.77 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12 x 6.1 mm Amethyst
Amethyst Color: Deep Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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2.37ct1 Piece
$ 13.04
12 x 6.1 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 2.37 ct Topaz
Topaz Shape: Marquise Facet Topaz
Topaz Size: 12 x 6.1 mm Topaz
Topaz Color: Sky Blue Topaz
Topaz Clarity: VVS Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 1
Topaz Certificate: GemSelect
Product Description:
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4.30ct (total)2 Pieces
$ 47.44
12.1 x 6.1 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.15 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6.1 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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3.54ct (total)2 Pieces
$ 35.17
12 x 6.1 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.77 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12 x 6.1 mm Pyrope Garnet
Pyrope Garnet Color: Merlot Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.26ct1 Piece
$ 8.32
11.7 x 6 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.26 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 11.7 x 6 mm Amethyst
Amethyst Color: Iris Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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2.07ct1 Piece
$ 36.43
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.07 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Medium Red Pyrope Garnet
Pyrope Garnet Clarity: VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 1
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.49ct1 Piece
$ 9.83
12.1 x 6 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.49 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12.1 x 6 mm Amethyst
Amethyst Color: Medium-Dark Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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1.84ct1 Piece
$ 16.19
11.9 x 6.1 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.84 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.9 x 6.1 mm Pyrope Garnet
Pyrope Garnet Color: Deep Blood Red Pyrope Garnet
Pyrope Garnet Clarity: VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 1
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.80ct1 Piece
$ 15.84
11.9 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.80 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.9 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Dark Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 1
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.59ct1 Piece
$ 12.24
12 x 6.1 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.59 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12 x 6.1 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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3.91ct (total)2 Pieces
$ 34.41
11.8 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.96 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.8 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Merlot Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.55ct1 Piece
$ 11.94
11.9 x 5.9 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.55 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 11.9 x 5.9 mm Amethyst
Amethyst Color: Pinkish Iris Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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3.83ct (total)2 Pieces
$ 29.49
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.92 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.52ct1 Piece
$ 10.03
12 x 5.8 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.52 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 12 x 5.8 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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3.28ct (total)2 Pieces
$ 36.19
11.9 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.64 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.9 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Deep Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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3.82ct (total)2 Pieces
$ 33.62
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.91 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Deep Blood Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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4.45ct (total)2 Pieces
$ 24.48
12.1 x 6.1 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 2.23 ct Topaz
Topaz Shape: Marquise Facet Topaz
Topaz Size: 12.1 x 6.1 mm Topaz
Topaz Color: Sky Blue Topaz
Topaz Clarity: VVS-VS Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 2
Topaz Certificate: GemSelect
Product Description:
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4.07ct (total)2 Pieces
$ 22.39
12.1 x 6.2 mm
Item Description
Stone Type: Loose Topaz
Topaz Weight: 2.04 ct Topaz
Topaz Shape: Marquise Facet Topaz
Topaz Size: 12.1 x 6.2 mm Topaz
Topaz Color: Swiss Blue Topaz
Topaz Clarity: VVS Topaz
Topaz Origin: Brazil Topaz
Topaz Treatment: Irradiated
Topaz Quantity: 2
Topaz Certificate: GemSelect
Product Description:
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3.60ct (total)2 Pieces
$ 63.36
12.1 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.80 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12.1 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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4.55ct (total)2 Pieces
$ 40.04
12 x 6 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 2.28 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 12 x 6 mm Pyrope Garnet
Pyrope Garnet Color: Deep Blood Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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1.63ct1 Piece
$ 12.55
11.8 x 5.9 mm
Item Description
Stone Type: Loose Amethyst
Amethyst Weight: 1.63 ct Amethyst
Amethyst Shape: Marquise Facet Amethyst
Amethyst Size: 11.8 x 5.9 mm Amethyst
Amethyst Color: Medium Violet Amethyst
Amethyst Clarity: VS Amethyst
Amethyst Origin: Brazil Amethyst
Amethyst Treatment: Untreated
Amethyst Quantity: 1
Amethyst Certificate: GemSelect
Product Description:
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3.54ct (total)2 Pieces
$ 39.06
11.8 x 6.1 mm
Item Description
Stone Type: Loose Pyrope Garnet
Pyrope Garnet Weight: 1.77 ct Pyrope Garnet
Pyrope Garnet Shape: Marquise Facet Pyrope Garnet
Pyrope Garnet Size: 11.8 x 6.1 mm Pyrope Garnet
Pyrope Garnet Color: Sangria Red Pyrope Garnet
Pyrope Garnet Clarity: VVS-VS Pyrope Garnet
Pyrope Garnet Origin: Mozambique Pyrope Garnet
Pyrope Garnet Treatment: Untreated
Pyrope Garnet Quantity: 2
Pyrope Garnet Certificate: GemSelect
Product Description:
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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 marquise shaped facet cut gems, gemstone carvings and cabochons available in 12 mm x 6 mm sizes. For the largest selection of colored gemstones, Shop GemSelect Online.

As a general guideline, when it comes to calibrated gems, they are not usually expected to be cut to exact measurements and specifications. But rather, they're cut with slight variance in size, though the close approximatation in size is not clearly defined, there are general guidelines for what is considered acceptable. Obviously larger and heavy carat weight stones allow more room in size for variance, while smaller stones may leave little to none. This means a large 30mm calibrated gemstone, could actually be closer to 31 millimeters. For this reason, we recommend to always view the exact size in addition to the calibrated size details. The exact size will inform you of the variance you can expect. Some setting styles are more flexible with variance, such as prong settings, while other styles of mountings may need almost an exact size to the fraction of millimeter.

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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