5mm Round Gemstones
Shop natural loose gemstones in a popular 5mm round size, ideal for jewelry settings, accent stones, matched designs and colorful custom pieces.
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Bi-color
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Black 5mm Rounds
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Blue 5mm Rounds
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Brown 5mm Rounds
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Golden
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Gray 5mm Rounds
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Green 5mm Rounds
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Multicolor 5mm Rounds
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Orange 5mm Rounds
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Pink 5mm Rounds
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Purple 5mm Rounds
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Red 5mm Rounds
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Turquoise 5mm Rounds
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Violet 5mm Rounds
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White 5mm Rounds
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Yellow 5mm Rounds
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
0.56ct Blue Sapphire, Round, VVS
5 mm (calibrated)
$ 377.24
1.47ctw Yellow Sapphire, Round, VS
5 mm (calibrated)
$ 80.89
1.54ctw White Zircon, Round, VVS-VS
5 mm (calibrated)
$ 40.50
0.72ct Blue Kyanite, Round, SI
5 mm (calibrated)
$ 17.93
4.60ctw Green Peridot, Round, VVS-VS
5 mm (calibrated)
$ 63.00
2.17ctw Orange Sapphire, Round, VVS
5 mm (calibrated)
$ 142.77
1.34ctw White Zircon, Round, VS
5 mm (calibrated)
$ 35.24
0.77ct Blue Kyanite, Round, SI
5 mm (calibrated)
$ 19.17
0.62ct Blue Sapphire, Round, VS
5 mm (calibrated)
$ 334.16
0.63ct Green Tourmaline, Round, Transparent
5 mm (calibrated)
$ 25.10
0.60ct Yellow Sapphire, Round, VS
5 mm (calibrated)
$ 33.62
2.82ctw Green Peridot, Round, VVS-VS
5 mm (calibrated)
$ 42.13
0.64ct Blue Kyanite, Round, VS-SI
5 mm (calibrated)
$ 12.75
0.59ct Pink Tourmaline, Round, Transparent
5 mm (calibrated)
$ 23.51
0.51ct Pink Tourmaline, Round, Transparent
5 mm (calibrated)
$ 20.32
1.39ctw White Zircon, Round, VS
5 mm (calibrated)
$ 36.55
0.79ct Orange Sphalerite, Round, SI
5 mm (calibrated)
$ 39.34
3.04ctw Red Spessartite Garnet, Round, VS
5 mm (calibrated)
$ 99.92
0.63ct Yellow Tourmaline, Round, Transparent
5 mm (calibrated)
$ 12.55
0.62ct Blue Sapphire, Round, VVS
5 mm (calibrated)
$ 417.66
1.18ctw Orange Sapphire, Round, VVS-VS
5 mm (calibrated)
$ 77.64
1.22ctw Blue Sapphire, Round, VS
5 mm (calibrated)
$ 534.65
0.77ct Blue Kyanite, Round, SI
5 mm (calibrated)
$ 19.17
0.64ct Green Tourmaline, Round, Transparent
5 mm (calibrated)
$ 12.75
Why Buy 5mm Rounds from GemSelect?
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Shop Natural 5mm Round Loose Gemstones
Round gemstones are one of the most versatile choices for jewelry, and the 5mm size is especially useful for designs that need a balanced, wearable center stone or a noticeable accent. This category brings together natural loose gemstones cut in or near a 5mm round format so you can compare colors, gem varieties and individual stones in one convenient place.
Why Choose a 5mm Round Gemstone?
A 5mm round gem offers a classic look that works across many jewelry styles. It is large enough to show color and sparkle, yet small enough for everyday rings, stud earrings, delicate pendants, stackable designs and side-stone arrangements. The round shape is also widely supported by standard jewelry settings, making it a practical option for custom projects and replacements.
Popular Uses for 5mm Rounds
Customers often choose 5mm round gemstones for solitaire rings, birthstone jewelry, matching earrings, cluster designs, halo settings and multi-stone pieces. The size can also be useful when replacing a stone in an existing mounting, provided the exact measurements and setting requirements are checked carefully before purchase.
Compare Gem Type, Color and Measurements
Even within the same nominal size, natural gemstones can vary slightly in diameter, depth, color, clarity and overall appearance. Review each product listing for the actual measurements, carat weight, photos and gem details. If you are buying for a pre-made setting, the millimeter dimensions are usually more important than carat weight.
Buying Tips for Jewelry Projects
For earrings or symmetrical designs, look for stones with similar color, size and shape. For rings and pendants, consider how the gemstone color will pair with your chosen metal and setting style. If durability is important for daily wear, compare gem varieties carefully and choose a stone suited to the type of jewelry you plan to make.
FAQ: 5mm Round Gemstones
Are all stones in this category exactly 5mm?
They are listed as 5mm round gemstones, but natural cut stones may have slight measurement variations. Always check the individual product dimensions before ordering, especially for fitted settings.
Is a 5mm round gemstone good for a ring?
Yes, a 5mm round stone is a popular size for rings, including solitaire, birthstone, stacking and accent designs. Make sure the chosen gem variety is suitable for how often the ring will be worn.
Can I use 5mm rounds for earrings?
Yes, 5mm round gemstones are commonly used for stud earrings and matched jewelry. For pairs, compare the individual stones for size, color and overall appearance.
What matters more: millimeter size or carat weight?
For jewelry settings, millimeter size is usually the key measurement. Carat weight can vary between gem types because different minerals have different densities and cutting proportions.
How do I choose the right 5mm round gemstone?
Start with the jewelry style and setting size, then compare color, gem type, durability, measurements and the details shown on each individual listing.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
My experience was done with ease
Overall Rating -> 10
The process was pleasant, I chose to purchase the stone traditional to the month of March as it is the month in which I was born.
Overall Rating -> 10
The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.
Overall Rating -> 9 
It was fine . Wish there had been more round stones to select from
Overall Rating -> 7 
Overall the site is good to use and simple to navigate for what i needed and i liked that they are clear and detailed on the size shape and cut of the stones only input id like is for stones that have a specific refractive quality like moonstone in my case if theyd showcase the cut stones refraction so you know how it looks when buying
Overall Rating -> 10
this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.
