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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

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For Example: 6-7
For Example: 8-9
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1.75ctw Green Demantoid Garnet, Oval, VS

1.75ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 231.00

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1.17ctw Red Pyrope Garnet, Heart, VVS-VS

1.17ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 35.10

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3.14ctw Red Rhodolite Garnet, Square, VS

3.14ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 33.12

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0.55ct Green Sapphire, Oval, VVS-VS

0.55ct Green Sapphire, Oval, VVS-VS

5.2 x 4.1 mm

$ 48.98

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0.79ct Green Sapphire, Cushion, VVS-VS

0.79ct Green Sapphire, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 75.84

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3.25ctw Red Rhodolite Garnet, Square, VS

3.25ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 34.28

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1.81ctw Green Demantoid Garnet, Oval, VS

1.81ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 217.20

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1.48ctw Red Pyrope Garnet, Square, VS

1.48ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.68

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0.30ct Orange Spessartite Garnet, Oval, VS-SI

0.30ct Orange Spessartite Garnet, Oval, VS-SI

5 x 3 mm (calibrated)

$ 12.60

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0.53ct Green Sapphire, Emerald Cut, VVS

0.53ct Green Sapphire, Emerald Cut, VVS

5 x 4 mm (calibrated)

$ 34.69

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1.60ctw Blue Apatite, Oval, VS

1.60ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 42.35

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0.69ct Red Ruby, Round, VS-SI

0.69ct Red Ruby, Round, VS-SI

5 mm (calibrated)

$ 222.77

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0.36ct Yellow Color-Change Diaspore, Oval, VS

0.36ct Yellow Color-Change Diaspore, Oval, VS

4.8 x 3.8 mm

$ 22.90

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3.34ctw Purple Rhodolite Garnet, Oval, VS
Rhodolite Garnet Product Video (439412)

3.34ctw Purple Rhodolite Garnet, Oval, VS

5 x 3 mm (calibrated)

$ 43.52

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1.29ctw White Zircon, Round, VS

1.29ctw White Zircon, Round, VS

5 mm (calibrated)

$ 45.97

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0.57ct Green Sphene, Oval, Transparent

0.57ct Green Sphene, Oval, Transparent

5.1 x 4.5 mm

$ 3.42

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1.40ctw Red Pyrope Garnet, Square, VVS

1.40ctw Red Pyrope Garnet, Square, VVS

5 x 5 mm (calibrated)

$ 12.94

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2.68ctw Red Pyrope Garnet, Square, VS

2.68ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 24.77

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2.29ctw Yellow Sapphire, Round, VVS-VS

2.29ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 181.51

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0.52ct Yellow Spessartite Garnet, Oval, VS

0.52ct Yellow Spessartite Garnet, Oval, VS

5 x 4.2 mm

$ 18.72

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1.72ctw Blue Tanzanite, Pear Shape, VS

1.72ctw Blue Tanzanite, Pear Shape, VS

4.8 x 2.8 mm

$ 79.46

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0.23ct Blue Aquamarine, Oval, VS

0.23ct Blue Aquamarine, Oval, VS

4.9 x 3.8 mm

$ 38.64

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0.54ct Red Pyrope Garnet, Heart, VS

0.54ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 16.20

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0.65ctw Blue Tanzanite, Pear Shape, VS

0.65ctw Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 46.80

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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

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

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

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 2026
Source: Bizrate
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