90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
Home Gemstones Gemstones By Size 5 mm Gemstones

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

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
Golden
Gray 5 mm Gemstones
Green 5 mm Gemstones
Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All

0.69ct Green Emerald, Emerald Cut, SI

5 x 5 mm (calibrated)

$ 171.81

View Gem

0.71ct Blue Sapphire, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 49.50

View Gem

1.49ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.05

View Gem

0.78ctw Purple Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 58.96

View Gem

0.76ct Multicolor Sapphire, Cushion, VS

4.8 x 4.8 mm

$ 121.11

View Gem

0.79ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 21.86

View Gem

0.60ct Yellow Color-Change Diaspore, Cushion, VS

5.2 x 4.8 mm

$ 31.67

View Gem

0.48ct Pink Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 47.81

View Gem

0.51ctw Pink Sapphire, Oval, VVS-VS

4.9 x 3.2 mm

$ 55.88

View Gem

0.60ctw Violet Amethyst, Emerald Cut, VS

5.2 x 3.2 mm

$ 3.49

View Gem

0.31ct Pink Sapphire, Oval, VVS-VS

5 x 3.2 mm

$ 12.64

View Gem

0.35ct Green Sapphire, Oval, VVS-VS

4.9 x 3.8 mm

$ 25.88

View Gem

0.28ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 11.16

View Gem

0.58ct Pink Spinel, Cushion, VS

5 x 5 mm (calibrated)

$ 20.73

View Gem

0.60ct Blue Sapphire, Heart, VS-SI

5 x 5 mm (calibrated)

$ 41.83

View Gem

0.46ct Orange Spessartite Garnet, Oval, VS

5.1 x 3.3 mm

$ 13.74

View Gem

0.88ctw Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.01

View Gem

0.88ctw Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.01

View Gem

1.51ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.9 mm

$ 57.91

View Gem

0.43ct Green Emerald, Oval, Translucent

5 x 4 mm (calibrated)

$ 34.26

View Gem

2.65ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 174.34

View Gem

0.71ct Blue Sapphire, Briolette, VS

5.1 x 4.1 mm

$ 63.64

View Gem

0.42ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 3.34

View Gem

0.48ct Multicolor Sapphire, Trillion, VS

5 x 4.8 mm

$ 38.25

View Gem

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

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate
Enlarged Gemstone Image