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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

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For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
Blue 5 mm Gemstones
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Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
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Purple 5 mm Gemstones
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Yellow 5 mm Gemstones
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1.10ctw Red Rubies, Oval, VS-SI
Ruby Product Video (714713)

1.10ctw Red Rubies, Oval, VS-SI

5.2 x 4.2 mm

$ 255.64

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0.45ct Orange Sapphire, Emerald Cut, VVS-VS

0.45ct Orange Sapphire, Emerald Cut, VVS-VS

4.9 x 3.8 mm

$ 24.45

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0.41ct Yellow Sapphire, Emerald Cut, VS

0.41ct Yellow Sapphire, Emerald Cut, VS

5.1 x 3.1 mm

$ 22.28

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0.34ct Blue Tanzanite, Pear Shape, VS

0.34ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.32

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1.31ctw Red Pyrope Garnet, Square, VVS-VS

1.31ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 10.05

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1.23ctw Blue Apatite, Oval, VS

1.23ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 27.02

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8.30ctw White Topaz, Square, VS

8.30ctw White Topaz, Square, VS

5 x 5 mm (calibrated)

$ 65.95

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0.34ct Blue Tanzanite, Pear Shape, VS

0.34ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.32

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1.69ctw Red Pyrope Garnet, Square, VVS-VS

1.69ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 12.96

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0.54ct Yellow Spessartite Garnet, Oval, VS

0.54ct Yellow Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 16.14

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2.73ctw Purple Rhodolite Garnet, Oval, VS

2.73ctw Purple Rhodolite Garnet, Oval, VS

5 x 3 mm (calibrated)

$ 44.41

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0.56ct Green Sapphire, Oval, VVS-VS

0.56ct Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 41.39

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0.59ct Blue Sapphire, Round, VVS-VS
Sapphire Product Video (467444)

0.59ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 331.21

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1.84ctw Green Demantoid Garnet, Oval, VS

1.84ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 201.59

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0.69ct Yellow Sphalerite, Round, SI-I1

0.69ct Yellow Sphalerite, Round, SI-I1

5 mm (calibrated)

$ 34.36

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1.48ctw Blue Tanzanite, Pear Shape, VS

1.48ctw Blue Tanzanite, Pear Shape, VS

4.9 x 3.7 mm

$ 56.76

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0.82ctw Purple Sapphire, Oval, VS

0.82ctw Purple Sapphire, Oval, VS

5 x 4.1 mm

$ 61.99

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0.64ct Blue Sapphire, Round, VVS-VS
Sapphire Product Video (467384)

0.64ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 431.13

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0.49ct Orange Spessartite Garnet, Oval, VS-SI

0.49ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 17.08

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0.60ct Blue Sapphire, Round, VVS-VS

0.60ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 404.19

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2.07ctw Blue Tanzanite, Pear Shape, VS

2.07ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 102.06

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0.62ct Orange Sphalerite, Round, SI

0.62ct Orange Sphalerite, Round, SI

5 mm (calibrated)

$ 30.88

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1.52ctw Red Pyrope Garnet, Square, VS

1.52ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 11.65

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0.20ct Yellow Sapphire, Marquise, VVS-VS
Sapphire Product Video (508819)

0.20ct Yellow Sapphire, Marquise, VVS-VS

5.1 x 2.4 mm

$ 4.75

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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 was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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