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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
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Purple 5 mm Gemstones
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White 5 mm Gemstones
Yellow 5 mm Gemstones
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1.58ctw Blue Tanzanite, Pear Shape, VS

1.58ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 73.00

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2.71ctw Red Pyrope Garnet, Square, VS

2.71ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 25.04

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0.72ct Yellow Sapphire, Round, VVS-VS

0.72ct Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 55.52

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0.53ct Red Pyrope Garnet, Heart, VS

0.53ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 15.90

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0.80ct Yellow Sphalerite, Round, VS-SI

0.80ct Yellow Sphalerite, Round, VS-SI

5 mm (calibrated)

$ 48.00

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1.01ctw Red Pyrope Garnet, Heart, VVS-VS

1.01ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 9.70

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2.65ctw Red Rhodolite Garnet, Square, VS

2.65ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 27.95

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1.39ctw Red Rhodolite Garnet, Square, VS

1.39ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 14.66

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2.35ctw Blue Tanzanite, Pear Shape, VS

2.35ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 108.58

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0.31ct Blue Tanzanite, Pear Shape, VS

0.31ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 22.32

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0.47ct Purple Sapphire, Oval, VS

0.47ct Purple Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 93.06

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2.78ctw Blue Topaz, Oval, VS

2.78ctw Blue Topaz, Oval, VS

5 x 3 mm (calibrated)

$ 15.29

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0.43ct Yellow Spessartite Garnet, Oval, VS

0.43ct Yellow Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 15.48

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0.52ct Yellow Sapphire, Emerald Cut, VS

0.52ct Yellow Sapphire, Emerald Cut, VS

5 x 3.8 mm

$ 34.04

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1.20ctw Orange Zircon, Oval, VS

1.20ctw Orange Zircon, Oval, VS

5.2 x 4.1 mm

$ 36.00

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1.74ctw Blue Tanzanite, Pear Shape, VS

1.74ctw Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 80.39

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0.42ct Orange Sapphire, Pear Shape, VVS-VS

0.42ct Orange Sapphire, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 75.60

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3.45ctw Orange Sapphire, Oval, VS

3.45ctw Orange Sapphire, Oval, VS

5 x 3 mm (calibrated)

$ 91.39

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0.63ct Green Sapphire, Oval, VVS-VS

0.63ct Green Sapphire, Oval, VVS-VS

4.9 x 4.2 mm

$ 56.11

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0.58ct Blue Sapphire, Round, VVS

0.58ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 470.74

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0.71ct Blue Kyanite, Round, SI

0.71ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 21.30

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2.32ctw Multicolor Andalusite, Oval, VS

2.32ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 149.32

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0.42ct Red Ruby, Oval, VS

0.42ct Red Ruby, Oval, VS

5.2 x 4 mm

$ 141.12

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0.47ct Yellow Citrine, Cushion, VS

0.47ct Yellow Citrine, Cushion, VS

5 x 5 mm (calibrated)

$ 4.23

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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

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
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

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 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
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