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6.22 ct Round Prehnite, 6.5 mm From South Africa, Photo A

6.22 ct Round Prehnite, 6.5 mm From South Africa

Prehnite

6.22ct total4 pcs
$ 33.66
6.5 mm
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3.82 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gems, 7 mm, Photo A
Click for Product Video (405389)

3.82 carat White Zircon, Diamond-Cut loose Zircon from Myanmar, Natural Gems, 7 mm

Zircon

3.82ct total2 pcs
$ 103.92
7 mm
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28.6 ct Loose Round Labradorite, 25.5 mm From Madagascar, Photo A

28.6 ct Loose Round Labradorite, 25.5 mm From Madagascar

Labradorite

28.60ct1 pc
$ 63.49
25.5 mm
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1.53 ct Blue Kyanite, 7.1 mm Round Cut From Nepal, Photo A

1.53 ct Blue Kyanite, 7.1 mm Round Cut From Nepal

Kyanite

1.53ct1 pc
$ 38.25
7.1 mm
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1.17 carat Yellow Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6 mm, Photo A

1.17 carat Yellow Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 6 mm

Tourmaline

1.17ct1 pc
$ 20.14
6 mm
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2.7 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar, Photo A
Click for Product Video (480422)

2.7 ct Loose White Sapphire, 4.5 mm Diamond Cut From Madagascar

Sapphire

2.70ct total6 pcs
$ 315.92
4.5 mm
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6.2 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil, Photo A

6.2 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil

Quartz

6.20ct1 pc
$ 24.68
12 mm
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3.31 ct Multicolor Mystic Quartz, 8.1 mm Diamond Cut From Brazil, Photo A

3.31 ct Multicolor Mystic Quartz, 8.1 mm Diamond Cut From Brazil

Mystic Quartz

3.31ct total2 pcs
$ 9.93
8.1 mm
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1.9 ct Round Cut Rainbow Moonstone, 8.1 mm From the United States, Photo A

1.9 ct Round Cut Rainbow Moonstone, 8.1 mm From the United States

Rainbow Moonstone

1.90ct1 pc
$ 32.47
8.1 mm
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3.79 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 5.6 mm, Photo A

3.79 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 5.6 mm

Zircon

3.79ct total4 pcs
$ 41.69
5.6 mm
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1.14 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 5.9 mm, Photo A

1.14 carat Orange Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Untreated Gem, 5.9 mm

Zircon

1.14ct1 pc
$ 27.31
5.9 mm
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5.06 ct Orange Sphalerite, 10.2 mm Round Cut From Congo, Photo A

5.06 ct Orange Sphalerite, 10.2 mm Round Cut From Congo

Sphalerite

5.06ct1 pc
$ 253.00
10.2 mm
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3.58 ct Round Cut Peridot, 6 mm From China, Photo A

3.58 ct Round Cut Peridot, 6 mm From China

Peridot

3.58ct total4 pcs
$ 35.12
6 mm
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3.72 ct Pink Morganite, 10 mm Round Cut From Afghanistan, Photo A

3.72 ct Pink Morganite, 10 mm Round Cut From Afghanistan

Morganite

3.72ct1 pc
$ 40.92
10 mm
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1.36 ct Round Tiger's Eye, 6.8 mm From Thailand, Photo A

1.36 ct Round Tiger's Eye, 6.8 mm From Thailand

Tiger's Eye

1.36ct1 pc
$ 1.36
6.8 mm
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4.29 ct Round Cut Strawberry Quartz, 10.8 mm From Russia, Photo A

4.29 ct Round Cut Strawberry Quartz, 10.8 mm From Russia

Strawberry Quartz

4.29ct1 pc
$ 33.03
10.8 mm
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0.57 ct Round Labradorite, 4.9 mm From Madagascar, Photo A

0.57 ct Round Labradorite, 4.9 mm From Madagascar

Labradorite

0.57ct1 pc
$ 1.39
4.9 mm
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3.46 ct Diamond Cut Andalusite, 3.7 mm From Brazil, Photo A
Click for Product Video (381931)

3.46 ct Diamond Cut Andalusite, 3.7 mm From Brazil

Andalusite

3.46ct total20 pcs
$ 152.58
3.7 mm
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1.98 ct Orange Sunstone, 8.7 mm Round Cut From India, Photo A

1.98 ct Orange Sunstone, 8.7 mm Round Cut From India

Sunstone

1.98ct1 pc
$ 11.88
8.7 mm
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0.37 ct Blue Apatite, 3.5 mm Round Cut From Madagascar, Photo A

0.37 ct Blue Apatite, 3.5 mm Round Cut From Madagascar

Apatite

0.37ct total2 pcs
$ 7.93
3.5 mm
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5.57 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil, Photo A

5.57 ct Yellow Quartz, 12 mm Round Concave Cut From Brazil

Quartz

5.57ct1 pc
$ 22.55
12 mm
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1.53 carat Green Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 7.1 mm, Photo A

1.53 carat Green Tourmaline, Round Cabochon loose Tourmaline from Mozambique, Natural Untreated Gem, 7.1 mm

Tourmaline

1.53ct1 pc
$ 21.75
7.1 mm
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0.08 ct Green Diamond, 2.7 mm Diamond Cut From India, Photo A

0.08 ct Green Diamond, 2.7 mm Diamond Cut From India

Diamond

0.08ct1 pc
$ 80.00
2.7 mm
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0.46 ct Brown Diamond, 3.8 mm Diamond Cut From India, Photo A
Click for Product Video (564572)

0.46 ct Brown Diamond, 3.8 mm Diamond Cut From India

Diamond

0.46ct total2 pcs
$ 843.15
3.8 mm
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1.1 ct Round Cat's Eye Moonstone, 6.1 mm From India, Photo A

1.1 ct Round Cat's Eye Moonstone, 6.1 mm From India

Cat's Eye Moonstone

1.10ct1 pc
$ 4.72
6.1 mm
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4.55 carat Round Cabochon Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.8 mm, Photo A

4.55 carat Round Cabochon Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.8 mm

Amethyst

4.55ct1 pc
$ 25.03
10.8 mm
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4.5 ct Round Rutile Quartz, 10.2 mm From India, Photo A

4.5 ct Round Rutile Quartz, 10.2 mm From India

Rutile Quartz

4.50ct1 pc
$ 11.34
10.2 mm
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3.31 ct Round Cut Peridot, 4.8 mm From China, Photo A

3.31 ct Round Cut Peridot, 4.8 mm From China

Peridot

3.31ct total6 pcs
$ 54.62
4.8 mm
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1.35 ct Pink Morganite, 7.2 mm Round Cut From Afghanistan, Photo A

1.35 ct Pink Morganite, 7.2 mm Round Cut From Afghanistan

Morganite

1.35ct1 pc
$ 103.95
7.2 mm
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2.61 ct Round Cut Peridot, 4.6 mm From China, Photo A

2.61 ct Round Cut Peridot, 4.6 mm From China

Peridot

2.61ct total6 pcs
$ 39.15
4.6 mm
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1.02 ct Blue Kyanite, 5.2 mm Round Cut From Nepal, Photo A

1.02 ct Blue Kyanite, 5.2 mm Round Cut From Nepal

Kyanite

1.02ct total2 pcs
$ 20.40
5.2 mm
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0.39 ct Loose Orange Sapphire, 4.3 mm Round Cut From Tanzania, Photo A

0.39 ct Loose Orange Sapphire, 4.3 mm Round Cut From Tanzania

Sapphire

0.39ct1 pc
$ 20.77
4.3 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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