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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
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Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
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Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
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0.32ct Violet Amethyst, Emerald Cut, VS

5.2 x 3.3 mm

$ 2.24

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0.65ct Blue Star Sapphire, Oval, Opaque

5 x 4 mm (calibrated)

$ 26.00

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2.22ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 102.56

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2.96ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 31.22

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0.73ct Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 56.28

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0.56ct Red Spinel, Cushion, VS

5 x 4.6 mm

$ 56.00

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0.39ctw Yellow Sapphire, Marquise, VVS

5 x 2.5 mm (calibrated)

$ 32.18

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1.48ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 195.36

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0.53ct Orange Spessartite Garnet, Pear Shape, VS

5 x 4 mm (calibrated)

$ 22.26

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0.30ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 14.40

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0.41ctw Yellow Sapphire, Marquise, VVS-VS

5 x 2.8 mm

$ 33.84

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2.53ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 23.38

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1.19ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 91.75

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8.26ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 82.93

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2.01ctw Blue Tanzanite, Pear Shape, VS

5 x 3.2 mm

$ 92.87

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2.20ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 101.64

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0.37ctw Orange Sapphire, Marquise, VVS-VS

5 x 2.7 mm

$ 30.54

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1.30ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 37.44

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7.10ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 68.29

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0.42ct Blue Tanzanite, Pear Shape, VVS-VS

5.1 x 4.2 mm

$ 30.24

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1.26ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 58.21

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1.55ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 16.34

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1.39ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 14.66

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0.59ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 49.56

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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

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO 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 -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate
Enlarged Gemstone Image