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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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Black 5 mm Gemstones
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Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
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Yellow 5 mm Gemstones
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0.38ct Yellow Color-Change Diaspore, Oval, VVS-VS

0.38ct Yellow Color-Change Diaspore, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 24.17

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0.70ct Yellow Sapphire, Round, VVS-VS

0.70ct Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 53.98

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2.06ctw Blue Tanzanite, Pear Shape, VS

2.06ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 95.17

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1.27ctw Yellow Sapphire, Round, VVS-VS

1.27ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 100.67

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3.17ctw Red Spessartite Garnet, Round, VVS-VS
Spessartite Garnet Product Video (379835)

3.17ctw Red Spessartite Garnet, Round, VVS-VS

5 mm (calibrated)

$ 179.60

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1.11ctw Blue Sapphire, Round, VS

1.11ctw Blue Sapphire, Round, VS

5 mm (calibrated)

$ 532.80

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0.73ct Blue Sapphire, Briolette, VS

0.73ct Blue Sapphire, Briolette, VS

5.2 x 4 mm

$ 78.84

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0.82ctw Yellow Citrine, Heart, VVS-VS

0.82ctw Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.87

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1.65ctw Blue Apatite, Oval, VS

1.65ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 43.67

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0.42ct Yellow Citrine, Heart, VVS-VS

0.42ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 4.03

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0.32ct Red Ruby, Baguette, VS-SI
Ruby Product Video (508417)

0.32ct Red Ruby, Baguette, VS-SI

5 x 2.7 mm

$ 59.53

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0.71ct Yellow Sapphire, Emerald Cut, VVS-VS

0.71ct Yellow Sapphire, Emerald Cut, VVS-VS

5.1 x 4.1 mm

$ 38.73

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1.02ct Orange Hessonite Garnet, Cushion, SI

1.02ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 24.24

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0.39ct Orange Spessartite Garnet, Oval, VS

0.39ct Orange Spessartite Garnet, Oval, VS

5 x 3.3 mm

$ 13.65

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0.36ct Pink Morganite, Round, VS-SI

0.36ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 18.00

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1.97ctw Blue Apatite, Oval, VS

1.97ctw Blue Apatite, Oval, VS

5 x 3.8 mm

$ 52.14

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0.66ct Green Sapphire, Cushion, VVS-VS

0.66ct Green Sapphire, Cushion, VVS-VS

5 x 4 mm (calibrated)

$ 63.36

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1.32ctw Blue Apatite, Oval, VS-SI

1.32ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 52.27

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0.48ct Yellow Sapphire, Emerald Cut, VVS-VS

0.48ct Yellow Sapphire, Emerald Cut, VVS-VS

5 x 4 mm (calibrated)

$ 31.42

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0.41ct Orange Sapphire, Oval, VS

0.41ct Orange Sapphire, Oval, VS

5 x 3.8 mm

$ 73.80

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0.96ct Orange Hessonite Garnet, Cushion, SI

0.96ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 22.81

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0.33ct Green Kornerupine, Oval, VS-SI

0.33ct Green Kornerupine, Oval, VS-SI

5.1 x 3.6 mm

$ 34.06

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0.87ctw Green Sapphire, Oval, VS

0.87ctw Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 77.48

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2.19ctw Purple Rhodolite Garnet, Round, VS
Rhodolite Garnet Product Video (390643)

2.19ctw Purple Rhodolite Garnet, Round, VS

5 mm (calibrated)

$ 140.95

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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

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
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
→ View All GemSelect Reviews on Bizrate
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