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Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

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94.59ct Intense Yellow Quartz Gemstones, Fancy, VVS
Quartz Product Video (470393)

94.59ct Intense Yellow Quartz, Fancy, VVS
ID: 470393
Weight: 94.59ct
Size: 38.2 x 20.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 130.06
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0.61ct Yellowish Green Demantoid Garnet Gemstones, Oval, VS
Demantoid Garnet Product Video (276515)

0.61ct Yellowish Green Demantoid Garnet, Oval, VS
ID: 276515
Weight: 0.61ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 167.75
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0.16ctw I Diamond Gemstones, Round, VVS-VS

0.16ctw I Diamond, Round, VVS-VS
ID: 565101
Weight: 0.16ct (total)
Size: 2.8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 291.86
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19.31ct Multicolor Rainbow Pyrite Gemstones, Fancy, Opaque

19.31ct Multicolor Rainbow Pyrite, Fancy, Opaque
ID: 645799
Weight: 19.31ct
Size: 17.9 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.25
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9.89ct Pine Green Tsavorite Garnet Gemstones, Pear Shape, Translucent
Tsavorite Garnet Product Video (522842)

9.89ct Pine Green Tsavorite Garnet, Pear Shape, Translucent
ID: 522842
Weight: 9.89ct
Size: 17.3 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 261.10
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77.96ct Multicolor Jasper Gemstones, Oval, Opaque
Jasper Product Video (693326)

77.96ct Multicolor Jasper, Oval, Opaque
ID: 693326
Weight: 77.96ct
Size: 45.7 x 25.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 54.26
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27.61ct Medium Brown Moonstone Gemstones, Oval, Opaque

27.61ct Medium Brown Moonstone, Oval, Opaque
ID: 359628
Weight: 27.61ct
Size: 22.3 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 72.89
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25.96ct Multicolor Pietersite Gemstones, Oval, Opaque

25.96ct Multicolor Pietersite, Oval, Opaque
ID: 348362
Weight: 25.96ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 137.06
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6.19ct Golden Brown Tiger's Eye Gemstones, Baguette, Opaque
Tiger's Eye Product Video (656739)

6.19ct Golden Brown Tiger's Eye, Baguette, Opaque
ID: 656739
Weight: avg. 6.19 ct / each
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Price: $ 7.31
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2.99ct Umber Brown Cat's Eye Scapolite Gemstones, Round, Translucent

2.99ct Umber Brown Cat's Eye Scapolite, Round, Translucent
ID: 518610
Weight: 2.99ct
Size: 9.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 19.74
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2.84ct Lively Green Peridot Gemstones, Cushion, VS-SI
Peridot Product Video (334362)

2.84ct Lively Green Peridot, Cushion, VS-SI
ID: 334362
Weight: 2.84ct
Size: 9.8 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 102.24
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24.49ct Light Purplish Blue Chalcedony Gemstones, Cushion, Opaque

24.49ct Light Purplish Blue Chalcedony, Cushion, Opaque
ID: 694259
Weight: 24.49ct
Size: 21 x 20.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.48
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2.48ct Medium Orange Hessonite Garnet Gemstones, Cushion, SI

2.48ct Medium Orange Hessonite Garnet, Cushion, SI
ID: 553148
Weight: 2.48ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 56.05
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6.82ct Light Blue Larimar Gemstones, Round, Opaque

6.82ct Light Blue Larimar, Round, Opaque
ID: 505527
Weight: 6.82ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 85.34
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20.96ctw Light Mocha Smoky Quartz Gemstones, Marquise, Transparent
Smoky Quartz Product Video (619199)

20.96ctw Light Mocha Smoky Quartz, Marquise, Transparent
ID: 619199
Weight: 20.96ct (total)
Size: 19.7 x 12.5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 105.97
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12.80ct Medium Pink Rose Quartz Gemstones, Emerald Cut, Transparent

12.80ct Medium Pink Rose Quartz, Emerald Cut, Transparent
ID: 395337
Weight: 12.80ct
Size: 14 x 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 70.40
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4.57ct Medium Gold Cat's Eye Opal Gemstones, Oval, Opaque

4.57ct Medium Gold Cat's Eye Opal, Oval, Opaque
ID: 493535
Weight: 4.57ct
Size: 12.2 x 9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.17
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5.26ctw Medium Pink Strawberry Quartz Gemstones, Oval, Transparent

5.26ctw Medium Pink Strawberry Quartz, Oval, Transparent
ID: 608170
Weight: 5.26ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 97.20
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10.80ct Rose Pink Morganite Gemstones, Pear Shape, Translucent
Morganite Product Video (604848)

10.80ct Rose Pink Morganite, Pear Shape, Translucent
ID: 604848
Weight: 10.80ct
Size: 20.1 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 142.56
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43.66ct White with Black Dendritic Agate Gemstones, Pear Shape, Opaque

43.66ct White with Black Dendritic Agate, Pear Shape, Opaque
ID: 693545
Weight: 43.66ct
Size: 43.3 x 22.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.20
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9.73ct Multicolor Rainbow Pyrite Gemstones, Marquise, Opaque

9.73ct Multicolor Rainbow Pyrite, Marquise, Opaque
ID: 645831
Weight: 9.73ct
Size: 29.8 x 9.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.36
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4.55ct Multicolor Fire Agate Gemstones, Fancy, Opaque

4.55ct Multicolor Fire Agate, Fancy, Opaque
ID: 623678
Weight: 4.55ct
Size: 10.7 x 10.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.23
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3.12ct Intense Pink Tourmaline Gemstones, Emerald Cut, VS

3.12ct Intense Pink Tourmaline, Emerald Cut, VS
ID: 544798
Weight: 3.12ct
Size: 10.8 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 236.81
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3.95ctw Medium Red Pyrope Garnet Gemstones, Marquise, VVS-VS

3.95ctw Medium Red Pyrope Garnet, Marquise, VVS-VS
ID: 589843
Weight: 3.95ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 69.52
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11.21ct Bluish White Rainbow Moonstone Gemstones, Pear Shape, Transparent
Rainbow Moonstone Product Video (669213)

11.21ct Bluish White Rainbow Moonstone, Pear Shape, Transparent
ID: 669213
Weight: 11.21ct
Size: 19.2 x 11.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 242.14
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1.18ct Light Yellow Color-Change Diaspore Gemstones, Emerald Cut, VS

1.18ct Light Yellow Color-Change Diaspore, Emerald Cut, VS
ID: 548283
Weight: 1.18ct
Size: 6.2 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 66.42
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16.81ct Multicolor Boulder Opal Gemstones, Fancy, Opaque
Boulder Opal Product Video (628411)

16.81ct Multicolor Boulder Opal, Fancy, Opaque
ID: 628411
Weight: 16.81ct
Size: 28.8 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 100.86
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36.94ct Bluish White Jadeite Gemstones, Oval, Translucent

36.94ct Bluish White Jadeite, Oval, Translucent
ID: 382972
Weight: 36.94ct
Size: 27.9 x 22.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 73.14
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114.72ct Multicolor Psilomelane Dendrite Gemstones, Oval, Opaque
Psilomelane Dendrite Product Video (691589)

114.72ct Multicolor Psilomelane Dendrite, Oval, Opaque
ID: 691589
Weight: 114.72ct
Size: 57.9 x 34.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 111.50
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4.37ctw Multicolor Spectrolite Gemstones, Oval, Opaque

4.37ctw Multicolor Spectrolite, Oval, Opaque
ID: 689156
Weight: 4.37ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 20.06
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52.12ct Multicolor Jasper Gemstones, Fancy, Opaque

52.12ct Multicolor Jasper, Fancy, Opaque
ID: 486356
Weight: 52.12ct
Size: 43.9 x 27.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 52.97
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32.39ct Brownish Green Cat's Eye Opal Gemstones, Oval, Opaque

32.39ct Brownish Green Cat's Eye Opal, Oval, Opaque
ID: 669731
Weight: 32.39ct
Size: 22.3 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.18
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61.25ct Multicolor Jasper Gemstones, Oval, Opaque

61.25ct Multicolor Jasper, Oval, Opaque
ID: 348795
Weight: 61.25ct
Size: 39.6 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 80.86
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10.24ct Light Blue Larimar Gemstones, Oval, Translucent
Larimar Product Video (541686)

10.24ct Light Blue Larimar, Oval, Translucent
ID: 541686
Weight: 10.24ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 146.30
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32.10ct Light Bluish Green Cat's Eye Aquamarine Gemstones, Oval, Translucent
Cat's Eye Aquamarine Product Video (333933)

32.10ct Light Bluish Green Cat's Eye Aquamarine, Oval, Translucent
ID: 333933
Weight: 32.10ct
Size: 22.5 x 16.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 693.36
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0.12ct Black Diamond Gemstones, Square, Opaque
Diamond Product Video (677850)

0.12ct Black Diamond, Square, Opaque
ID: 677850
Weight: avg. 0.12 ct / each
Size: 2.5 x 2.4 mm
Clarity: Opaque
Price: $ 60.75
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5.18ct Golden Apatite Gemstones, Oval, VS-SI
Apatite Product Video (387570)

5.18ct Golden Apatite, Oval, VS-SI
ID: 387570
Weight: 5.18ct
Size: 13.4 x 9.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 333.88
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1.86ct Flamingo Pink Morganite Gemstones, Pear Shape, VS

1.86ct Flamingo Pink Morganite, Pear Shape, VS
ID: 517839
Weight: 1.86ct
Size: 11.8 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 171.86
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43.76ct Multicolor Jasper Gemstones, Oval, Opaque

43.76ct Multicolor Jasper, Oval, Opaque
ID: 623870
Weight: 43.76ct
Size: 33.2 x 24.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.72
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3.56ct Lively Green Sphene Gemstones, Oval, Translucent

3.56ct Lively Green Sphene, Oval, Translucent
ID: 521607
Weight: 3.56ct
Size: 10.5 x 8.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 25.70
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1.52ct Light Pink Morganite Gemstones, Round, VS
Morganite Product Video (587280)

1.52ct Light Pink Morganite, Round, VS
ID: 587280
Weight: 1.52ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 117.04
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5.47ctw Chocolate Brown Smoky Quartz Gemstones, Oval, VVS

5.47ctw Chocolate Brown Smoky Quartz, Oval, VVS
ID: 632806
Weight: 5.47ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 39.38
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2.14ctw Deep Orange Zircon Gemstones, Round, VVS-VS

2.14ctw Deep Orange Zircon, Round, VVS-VS
ID: 481435
Weight: 2.14ct (total)
Size: 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 51.25
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9.42ct Multicolor Quartz With Marcasite Gemstones, Pear Shape, Transparent

9.42ct Multicolor Quartz With Marcasite, Pear Shape, Transparent
ID: 577072
Weight: 9.42ct
Size: 16.4 x 12.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 72.61
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41.53ct Neutral Brown Moonstone Gemstones, Oval, Opaque
Moonstone Product Video (401031)

41.53ct Neutral Brown Moonstone, Oval, Opaque
ID: 401031
Weight: 41.53ct
Size: 21.4 x 17.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.24
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26.46ct Light Blue Chalcedony Gemstones, Pear Shape, Opaque
Chalcedony Product Video (694293)

26.46ct Light Blue Chalcedony, Pear Shape, Opaque
ID: 694293
Weight: 26.46ct
Size: 33.4 x 17.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 79.38
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9.27ct Coral Pink Morganite Gemstones, Trillion, Translucent

9.27ct Coral Pink Morganite, Trillion, Translucent
ID: 594887
Weight: 9.27ct
Size: 14 x 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 122.36
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24.94ct Multicolor Rhodochrosite Gemstones, Pear Shape, Opaque

24.94ct Multicolor Rhodochrosite, Pear Shape, Opaque
ID: 239256
Weight: 24.94ct
Size: 34.5 x 13.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.31
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41.69ct Multicolor Rainbow Pyrite Gemstones, Fancy, Opaque
Rainbow Pyrite Product Video (645844)

41.69ct Multicolor Rainbow Pyrite, Fancy, Opaque
ID: 645844
Weight: 41.69ct
Size: 26.2 x 19 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.07
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3.95ct Autumn Yellow Apatite Gemstones, Pear Shape, VS

3.95ct Autumn Yellow Apatite, Pear Shape, VS
ID: 407919
Weight: 3.95ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 156.42
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10.12ct Blue-Green Tourmaline Gemstones, Flower Cut, Transparent
Tourmaline Product Video (690462)

10.12ct Blue-Green Tourmaline, Flower Cut, Transparent
ID: 690462
Weight: 10.12ct
Size: 20.5 x 16.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 237.66
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2.36ctw Medium Pink Morganite Gemstones, Oval, VS

2.36ctw Medium Pink Morganite, Oval, VS
ID: 597459
Weight: 2.36ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 155.76
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1.72ct Dark Blue Kyanite Gemstones, Round, SI-I1
Kyanite Product Video (602718)

1.72ct Dark Blue Kyanite, Round, SI-I1
ID: 602718
Weight: 1.72ct
Size: 7 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 56.76
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33.71ct Multicolor Boulder Opal Gemstones, Fancy, Opaque
Boulder Opal Product Video (523722)

33.71ct Multicolor Boulder Opal, Fancy, Opaque
ID: 523722
Weight: 33.71ct
Size: 32.6 x 22.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 222.49
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30.70ct Black with Gold Sheen Obsidian Gemstones, Oval, Opaque

30.70ct Black with Gold Sheen Obsidian, Oval, Opaque
ID: 434039
Weight: 30.70ct
Size: 30.7 x 23.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.52
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2.25ctw Very Light Grey Sillimanite Cat's Eye Gemstones, Oval, Translucent

2.25ctw Very Light Grey Sillimanite Cat's Eye, Oval, Translucent
ID: 558485
Weight: 2.25ct (total)
Size: 7 x 4.7 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 8.56
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1.81ct Champagne Diamond Gemstones, Emerald Cut, SI
Diamond Product Video (382053)

1.81ct Champagne Diamond, Emerald Cut, SI
ID: 382053
Weight: 1.81ct
Size: 6.4 x 6.1 mm
Clarity: SI
Content: 1 pc
Price: $ 4,630.51
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1.00ct Scarlet Red Pyrope Garnet Gemstones, Oval, VVS-VS
Pyrope Garnet Product Video (513160)

1.00ct Scarlet Red Pyrope Garnet, Oval, VVS-VS
ID: 513160
Weight: avg. 1.00 ct / each
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 9.06
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2.60ct Forest Green Tourmaline Gemstones, Emerald Cut, VVS

2.60ct Forest Green Tourmaline, Emerald Cut, VVS
ID: 449386
Weight: 2.60ct
Size: 21.1 x 4 mm
Clarity: VVS
Content: 1 pc
Price: $ 85.80
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0.90ctw Medium Green Demantoid Garnet Gemstones, Oval, VS
Demantoid Garnet Product Video (458684)

0.90ctw Medium Green Demantoid Garnet, Oval, VS
ID: 458684
Weight: 0.90ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 195.43
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FAQs

What are loose untreated gemstones?

Loose untreated gemstones are natural stones that have not undergone any artificial treatments or enhancements. Examples include unheated sapphires, untreated rubies, and unenhanced diamonds, which maintain their natural beauty and originality.

Why should I choose untreated gemstones over treated ones?

Untreated gemstones, such as unheated topaz and virgin untreated stones, are valued for their authenticity and rarity. These certified untreated gems are perfect for collectors and those seeking ethically sourced, natural stones for unique jewelry designs.

Are untreated gemstones suitable for engagement rings?

Yes, untreated gemstones like GIA-certified natural gems, unenhanced diamonds, and untreated rubies are excellent choices for engagement rings. They offer timeless elegance and are ideal for creating one-of-a-kind designs that reflect personal style.

What makes rare untreated gems valuable for collectors?

Rare untreated gems for collectors, such as authentic untreated crystals and unheated and untreated stones, are prized for their natural appearance and limited availability. Their untouched state makes them highly desirable and a great investment.

How can I ensure the quality of loose untreated gemstones?

Always choose certified untreated gems, like GIA-certified natural gems, to guarantee authenticity and quality. These stones undergo thorough evaluation to ensure they meet the highest standards, making them ideal for both personal collections and jewelry projects.

What types of untreated gemstones are available?

Our collection includes a variety of untreated gemstones such as unheated sapphires, untreated rubies, unenhanced diamonds, and unheated topaz. Each stone is carefully selected to offer unmatched quality and natural beauty.

Are untreated gemstones more expensive than treated ones?

In many cases, untreated gemstones, like precious untreated gemstones and virgin untreated stones, can be more valuable due to their rarity and natural state. Their unique characteristics make them highly sought after by collectors and jewelry enthusiasts.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

Posted By Jac in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

there are a large number of gems to choose from i have ordered before and these objects are precious to me that my light reflect in them and fills the stones they are there when i need to reflect on life

Posted By Kickbass.2 in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate
Enlarged Gemstone Image