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Home › Gemstones › Gemstones By Size › 5 mm Gemstones

5 mm Gemstones for Jewelry

Browse our selection of precisely calibrated 5 mm gemstones, ideal for consistent and professional jewelry designs.

5 mm Gemstones Weight
5 mm Gemstones Size
5 mm Gemstones Clarity
5 mm Gemstones Price
5 mm Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
Golden 5 mm Gemstones
Gray 5 mm Gemstones
Green 5 mm Gemstones
Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
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0.65ct Yellow Zircon, Oval, VS

0.65ct Yellow Zircon, Oval, VS

5.2 x 4.2 mm

$ 9.71

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0.70ct Blue Kyanite, Round, SI

0.70ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 17.43

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0.58ct Pink Spinel, Cushion, VVS-VS

0.58ct Pink Spinel, Cushion, VVS-VS

5 x 4.5 mm

$ 40.44

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2.63ctw Multicolor Andalusite, Oval, VS

2.63ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 140.49

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0.42ct Blue Tanzanite, Pear Shape, VVS-VS

0.42ct Blue Tanzanite, Pear Shape, VVS-VS

5.1 x 4.2 mm

$ 25.10

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1.50ctw White Zircon, Round, VS

1.50ctw White Zircon, Round, VS

5 mm (calibrated)

$ 39.44

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0.93ctw Orange Spessartite Garnet, Oval, VS

0.93ctw Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 32.42

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1.79ctw Green Demantoid Garnet, Oval, VS-SI

1.79ctw Green Demantoid Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 196.11

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0.73ctw Yellow Color-Change Diaspore, Cushion, VS

0.73ctw Yellow Color-Change Diaspore, Cushion, VS

5 x 4.2 mm

$ 38.54

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1.27ctw Blue Tanzanite, Pear Shape, VS

1.27ctw Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 48.70

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0.41ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.41ct Gray Cat'S Eye Alexandrite, Oval, Opaque

4.8 x 3.3 mm

$ 68.06

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0.55ct Blue Sapphire, Round, VVS-VS

0.55ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 327.39

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6.24ctw Multicolor Labradorite, Square, Transparent

6.24ctw Multicolor Labradorite, Square, Transparent

5 x 5 mm (calibrated)

$ 6.58

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0.34ct Orange Spessartite Garnet, Oval, VS

0.34ct Orange Spessartite Garnet, Oval, VS

4.9 x 3.2 mm

$ 11.85

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9.23ctw Pink Sapphire, Oval, VS
Sapphire Product Video (723480)

9.23ctw Pink Sapphire, Oval, VS

5 x 3.2 mm

$ 633.95

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3.26ctw Red Pyrope Garnet, Square, VS

3.26ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 25.00

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0.69ct Orange Sphalerite, Round, SI-I1

0.69ct Orange Sphalerite, Round, SI-I1

5 mm (calibrated)

$ 34.36

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1.68ctw Green Demantoid Garnet, Oval, VS

1.68ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 184.06

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0.41ct Green Sapphire, Emerald Cut, VVS
Sapphire Product Video (708218)

0.41ct Green Sapphire, Emerald Cut, VVS

5.2 x 3.2 mm

$ 38.79

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0.53ct Red Pyrope Garnet, Heart, VS

0.53ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 13.20

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2.71ctw Red Rhodolite Garnet, Square, VS

2.71ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 23.72

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0.54ct Yellow Citrine, Cushion, Transparent

0.54ct Yellow Citrine, Cushion, Transparent

5 x 5 mm (calibrated)

$ 4.03

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0.61ct Green Sapphire, Heart, VS

0.61ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 33.37

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2.01ctw Blue Tanzanite, Pear Shape, VS

2.01ctw Blue Tanzanite, Pear Shape, VS

5 x 3.2 mm

$ 77.08

View Gem

Why Buy 5 Mm Gemstones from GemSelect?

Precision Cut 5 mm Gemstones

Our 5 mm gemstones are expertly cut to precise dimensions, making them ideal for standardized jewelry settings such as rings, earrings, and bracelets.

Shop 5mm Loose Gemstones Online

Discover a wide range of 5mm loose gemstones available in many varieties, colors, and shapes, all ready for immediate shipment worldwide.

Perfect Size for Jewelry Settings

The 5 mm size is one of the most popular choices for jewelry, offering a balance between visibility and wearability for rings, studs, and pendants.

Wide Variety of Gemstone Types

Choose from sapphires, garnets, amethyst, citrine, peridot, and many other gemstones, all available in calibrated 5 mm sizes.

Faceted and Cabochon Options

Our 5 mm gemstones are available in both faceted cuts for maximum brilliance and cabochon finishes for a smooth, classic appearance.

Calibrated Gemstones for Easy Setting

Calibrated 5mm gemstones ensure a consistent fit in pre-made jewelry mounts, saving time and ensuring professional results for jewelers.

Natural and Certified Gemstones

All our gemstones are natural and carefully sourced, with full disclosure of any treatments to ensure transparency and trust.

Wholesale 5 mm Gemstones

We offer competitive pricing for bulk purchases, making our 5 mm gemstones an excellent choice for jewelry manufacturers and resellers.

Learn more about gemstone cuts, sizes, and quality on our Gemstone Cut Information Page.

FAQs

What does 5 mm mean in gemstones?

5 mm refers to the diameter or size of the gemstone, commonly used for round stones, making it a standardized size for jewelry settings.

Are 5 mm gemstones considered large?

5 mm gemstones are considered medium-sized, offering a noticeable presence while remaining comfortable for everyday wear.

Are 5mm gemstones calibrated?

Yes, most 5mm gemstones are precision-cut to calibrated sizes, ensuring they fit standard jewelry mounts without adjustment.

Which gemstones are available in 5 mm size?

Many gemstones are available in 5 mm, including sapphire, ruby, garnet, amethyst, citrine, peridot, and more.

Can I use 5 mm gemstones for engagement rings?

Yes, 5 mm gemstones are a popular choice for engagement rings, especially for those seeking a balanced and practical stone size.

Do 5 mm gemstones work with standard settings?

Yes, calibrated 5 mm gemstones are designed to fit standard jewelry settings, making them easy to use in pre-made mounts.

Are your 5 mm gemstones natural?

All our gemstones are natural, with any treatments clearly disclosed to maintain transparency and customer confidence.

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 needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I loved it! Extensive inventory, great prices, I definitely will be buying from here again!

Posted By Lex in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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