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0.04 ct Blue Diamond, 2.2 mm Diamond Cut From India, Photo A

0.04 ct Blue Diamond, 2.2 mm Diamond Cut From India

Diamond

0.04ct1 pc
$ 40.00
2.2 mm
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1.85 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gem, 6.8 mm, Photo A

1.85 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gem, 6.8 mm

Zircon

1.85ct1 pc
$ 50.33
6.8 mm
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0.28 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm, Photo A

0.28 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.8 mm

Ruby

0.28ct1 pc
$ 92.71
3.8 mm
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0.16 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm, Photo A

0.16 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

Ruby

0.16ct1 pc
$ 52.98
3.4 mm
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1.76 ct Orange Sunstone, 6.1 mm Round Cut From India, Photo A

1.76 ct Orange Sunstone, 6.1 mm Round Cut From India

Sunstone

1.76ct total2 pcs
$ 19.36
6.1 mm
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2.53 ct Orange Sunstone, 8.9 mm Round Cut From India, Photo A

2.53 ct Orange Sunstone, 8.9 mm Round Cut From India

Sunstone

2.53ct1 pc
$ 15.19
8.9 mm
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1.71 ct Yellow Beryl, 8 mm Round Cut From Madagascar, Photo A

1.71 ct Yellow Beryl, 8 mm Round Cut From Madagascar

Beryl

1.71ct1 pc
$ 34.20
8 mm
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0.2 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm, Photo A

0.2 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

Ruby

0.20ct1 pc
$ 66.22
3.4 mm
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0.19 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm, Photo A

0.19 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.4 mm

Ruby

0.19ct1 pc
$ 62.91
3.4 mm
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15.28 ct Round Labradorite, 12.3 mm From Madagascar, Photo A

15.28 ct Round Labradorite, 12.3 mm From Madagascar

Labradorite

15.28ct total2 pcs
$ 37.28
12.3 mm
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0.32 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm, Photo A

0.32 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 3.7 mm

Ruby

0.32ct1 pc
$ 105.96
3.7 mm
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0.74 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar, Photo A

0.74 ct Loose White Sapphire, 4.4 mm Diamond Cut From Madagascar

Sapphire

0.74ct total2 pcs
$ 98.13
4.4 mm
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1.22 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.1 mm, Photo A

1.22 carat Blue Sapphire, Diamond-Cut loose Sapphire from Madagascar, Natural Gems, 5.1 mm

Sapphire

1.22ct total2 pcs
$ 536.80
5.1 mm
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0.48 ct Orange Sphalerite, 4.7 mm Round Cut From Spain, Photo A

0.48 ct Orange Sphalerite, 4.7 mm Round Cut From Spain

Sphalerite

0.48ct1 pc
$ 24.00
4.7 mm
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2.3 ct Loose Orange Sapphire, 4.8 mm Round Cut From Tanzania, Photo A

2.3 ct Loose Orange Sapphire, 4.8 mm Round Cut From Tanzania

Sapphire

2.30ct total4 pcs
$ 151.92
4.8 mm
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2.06 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gem, 7.1 mm, Photo A

2.06 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gem, 7.1 mm

Zircon

2.06ct1 pc
$ 56.03
7.1 mm
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0.74 carat Round Grossularite Garnet, loose Certified Grossularite Garnet from Tanzania, Natural Untreated Gem, 5.3 mm, Photo A

0.74 carat Round Grossularite Garnet, loose Certified Grossularite Garnet from Tanzania, Natural Untreated Gem, 5.3 mm

Grossularite Garnet

0.74ct1 pc
$ 37.00
5.3 mm
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2.62 ct Round Cut Strawberry Quartz, 7 mm From Russia, Photo A

2.62 ct Round Cut Strawberry Quartz, 7 mm From Russia

Strawberry Quartz

2.62ct total2 pcs
$ 23.06
7 mm
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47.09 ct Green Aventurine, 24.5 mm Round Cut From Brazil, Photo A

47.09 ct Green Aventurine, 24.5 mm Round Cut From Brazil

Aventurine

47.09ct1 pc
$ 52.27
24.5 mm
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1.14 ct Round Buff Top Strawberry Quartz, 7 mm From Russia, Photo A

1.14 ct Round Buff Top Strawberry Quartz, 7 mm From Russia

Strawberry Quartz

1.14ct1 pc
$ 10.03
7 mm
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30.19 ct Green Agate, 21.7 mm Round Cut From India, Photo A

30.19 ct Green Agate, 21.7 mm Round Cut From India

Agate

30.19ct1 pc
$ 24.24
21.7 mm
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0.97 ct Blue Kyanite, 6 mm Round Cut From Nepal, Photo A

0.97 ct Blue Kyanite, 6 mm Round Cut From Nepal

Kyanite

0.97ct1 pc
$ 24.25
6 mm
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0.51 carat Blue Sapphire, Round Cabochon loose Sapphire from Tanzania, Natural Gem, 4.4 mm, Photo A

0.51 carat Blue Sapphire, Round Cabochon loose Sapphire from Tanzania, Natural Gem, 4.4 mm

Sapphire

0.51ct1 pc
$ 13.77
4.4 mm
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0.87 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.5 mm, Photo A

0.87 carat Round Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5.5 mm

Ruby

0.87ct1 pc
$ 300.21
5.5 mm
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3.76 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil, Photo A

3.76 ct Round Checkerboard Smoky Quartz, 7.9 mm From Brazil

Smoky Quartz

3.76ct total2 pcs
$ 8.27
7.9 mm
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1.11 ct Loose Yellow Sapphire, 5.6 mm Round Cut From Tanzania, Photo A

1.11 ct Loose Yellow Sapphire, 5.6 mm Round Cut From Tanzania

Sapphire

1.11ct1 pc
$ 219.78
5.6 mm
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0.97 ct Yellow Sphalerite, 5.9 mm Round Cut From Spain, Photo A

0.97 ct Yellow Sphalerite, 5.9 mm Round Cut From Spain

Sphalerite

0.97ct1 pc
$ 48.50
5.9 mm
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4 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.2 mm, Photo A

4 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 7.2 mm

Zircon

4.00ct total2 pcs
$ 108.15
7.2 mm
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2.34 ct Round Cut Andalusite, 4.1 mm From Brazil, Photo A

2.34 ct Round Cut Andalusite, 4.1 mm From Brazil

Andalusite

2.34ct total9 pcs
$ 115.83
4.1 mm
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0.69 ct Blue Green Apatite, 5.3 mm Round Cut From Madagascar, Photo A

0.69 ct Blue Green Apatite, 5.3 mm Round Cut From Madagascar

Apatite

0.69ct1 pc
$ 11.39
5.3 mm
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2.29 carat Orange Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.6 mm, Photo A

2.29 carat Orange Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.6 mm

Spessartite Garnet

2.29ct total4 pcs
$ 78.09
4.6 mm
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0.06 ct Blue Diamond, 2.4 mm Diamond Cut From India, Photo A

0.06 ct Blue Diamond, 2.4 mm Diamond Cut From India

Diamond

0.06ct1 pc
$ 60.00
2.4 mm
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Photos are of Actual Products for Sale
When it comes to gemstone shapes, round gems are the most popular and versatile. Unlike oval gems, round gemstones are not cut to maximize carat weight, so more skill is often required by the cutter to bring out the color and brilliance in a gem. Many people confuse shape with gemstone cut, which isn't all that surprising. Looking at our selection of round-shaped gemstones, you'll notice a number of different round-cut stones; some are cut en cabochon, with no facets at all, while others are faceted in the traditional way, either with step-cut faceting or with more angular 'brilliant-cut' faceting. Other round gems may be given an unusual or mixed gem cut, such as concave-style cut, checkerboard cuts, or Portuguese-style cuts. Round rose-cut gems and round buff-top gems can also be found. Thus, it is easy to see why shape and cut are often confused, because there is one shape (round) with multiple cutting styles. Although many describe their gemstones using terms like 'round-cut', it isn't always the best description since there are many cutting styles; technically gems should be described as 'round Portuguese-cut', 'round step-cut', or 'round cabochon' for example.

The meaning of shape should be fairly obvious, which is the face-up outline of the stone, whether it is round, oval, square, rectangular, pear, marquise or trillion. Round gemstones should be symmetrical with a perfectly circular outline. However, in practice, a good percentage of gemstones are native-cut without the use of precision lasers and other advanced lapidary tools, so many round gems are not actually perfect circles and are rather better described as being near-round. This is why you may find that many still use three measurements for round gems. Most gemstone dealers will use only one diameter measurement and the depth (in millimeters), but to be more accurate, some dealers may advertise their items using the two diameter measurements, with one measurement at its minimum and another at its maximum, followed by the depth in millimeters. This type of measuring is more often used for diamonds rather than colored stones.

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