Calibrated 4 x 4 mm Square Shape Loose Natural Gemstones from GemS...

Some people by gems by color or price, but for many, it is best to buy gems by shape and size - especially if you're in need of a gem to replace a previous item that was lost or damaged. Calibrated Square shapes, facet cut and cabochon gems available now in 4 mm x 4 mm size range. Shop a wide range of calibrated gemstones by size online at wholesale from GemSelect.

As a general guideline, when it comes to 'calibrated' gems, they are not meant nor expected to be cut to exact measurements. For calibrated gemstones weighing under one carat, most jewelry settings will accommodate a gem which is within 0.2 mm of the calibrated size in order to fit a standard setting. For gemstones that weigh over one carat, a larger variance is acceptable, often around 0.3 mm or slightly higher even. This small variance can usually be accommodated for standard style settings. Round-cut gemstones should also have a greater variance in acceptable size when it comes to calibration; in fact it is usually possible to mount a round stone of any size in the closest standard setting.

Read All

Gemstone Information

Find More Content Here

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10

Purchasing from Gem Select was a pleasant and easy experience. The photos of the stones I was interested in were an accurate depiction of the stones I received. Ordering was easy and the items arrived within a week. Over all it was a very positive experience.

Posted By Dee in September, 2023

Source: Bizrate

Overall Rating -> 10

all good

Posted By John in December, 2023

Source: Bizrate

Overall Rating -> 10

Pleasant.

Posted By Mk in November, 2023

Source: Bizrate

Overall Rating -> 9

Easy to use. Limited supply of higher quality gemstones.

Posted By Newfguy in February, 2024

Source: Bizrate

Overall Rating -> 10

Always an easy experience using Gem select.

Posted By Jeff in November, 2023

Source: Bizrate

Overall Rating -> 9

Good interaction with site

Posted By Brick in September, 2023

Source: Bizrate

Overall Rating -> 10

I was looking for a source for affordable genuine gemstones for my grandson who is currently very interested in rocks and gems. I was quite surprised and pleased to find GemSelect and finding the right stones at the right price couldn't have been simpler.

Posted By Papa in December, 2023

Source: Bizrate

Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

Source: Bizrate

Overall Rating -> 10

After having looked at other purchasing sites, this is my first choice.

Posted By MJC in January, 2024

Source: Bizrate

Overall Rating -> 10

The gems were as described, which is kind of rare these days. I am happy with the purchase, and delevery on time.

Posted By T-bone in October, 2023

Source: Bizrate

Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

Source: Bizrate

Overall Rating -> 10

This is only the second time I have ordered from GemSelect. I am a prolific gemstone collector and I wish I had found this site sooner!

Posted By Beachcomber in September, 2023

Source: Bizrate

Overall Rating -> 10

I’ve enjoyed purchasing stones from this site. It’s convenient and fairly priced.

Posted By Chico in May, 2023

Source: Bizrate

Overall Rating -> 7

I placed order#384714 based on the picture on your website and the stone came in much darker. I'm sure it's the same stone i ordered but your lighting made it seem a lighter blue. I was trying to match a stone for a customer and based on the picture it would have been close enough but the stone in person is a mile off.

Posted By Bobk in February, 2024

Source: Bizrate

Overall Rating -> 10

I have used Gem Select many times over the past 10 years and have always been happy with the product & services

Posted By Ordain in August, 2023

Source: Bizrate

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT

183/24-25 Moo 4, Trirat Rd.
T. Chantanimit, A. Muang
Chanthaburi 22000
THAILAND
Phone: 1-800-464-1640
Phone: +66-39601289

STAY IN TOUCH | NEWSLETTER

*You're signing up to receive GemSelect promotional email.

Switch to Mobile Version

Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.

982

Gemstones A-Z

Buy Square Shape 4x4 mm Gems

0.19 carat Baguette Cut Emerald, loose Certified Emerald from Colombia, Natural Untreated Gem, 3.7 x 2.9 mm

27.02 ct Trillion Quartz With Marcasite, 26.7 x 23.1 mm From Brazil

0.39 ct Loose Orange Sapphire, 4.4 x 4.3 mm Heart Cut From Tanzania

10.09 ct Yellow Quartz, 13.3 x 13.2 mm Carved From Brazil

1.07 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from the United States, Natural Untreated Gems, 5 x 5 mm

0.95 ct Oval Peridot, 6.1 x 4.2 mm From China

7.86 ct Oval Strawberry Quartz, 12.8 x 10.5 mm From Russia

8.25 carat Pear Ruby-Zoisite, loose Certified Ruby-Zoisite from Tanzania, Natural Untreated Gem, 19.4 x 10.3 mm

2.83 carat Sky Blue Topaz, Heart loose Topaz from Brazil, Natural Gems, 4 x 4 mm

22.35 ct Oval Agate, 18.1 x 16.8 mm From Indonesia

0.9 ct Octagon Cut Peridot, 6.8 x 4.8 mm From China

1.48 ct Yellow Beryl, 7.9 mm Round Cut From Madagascar

1.88 carat Oval Ruby, loose Certified Ruby from Madagascar, Natural Gem, 8.1 x 6.1 mm

7.42 carat Yellow Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gem, 20 x 10 mm

16.35 ct Green Agate, 12.4 x 11.6 mm Oval Cut From India

1.57 ct Yellow Sphene, 7.6 x 6.4 mm Oval Cut From Sri Lanka

6.32 carat Yellow Citrine, Round loose Citrine from Brazil, Natural Untreated Gem, 12.2 mm

2.05 carat Orange Zircon, Pear Shape loose Zircon from Tanzania, Natural Untreated Gem, 7.5 x 7.5 mm

2.49 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6.1 mm

1.69 ct Oval Cat's Eye Moonstone, 7 x 5.1 mm From India

3.4 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 12 x 10 mm

0.82 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 5.1 mm

1.21 ct Oval Cut Rainbow Moonstone, 8.2 x 6.1 mm From the United States

16.33 ct Fancy Pietersite, 24.5 x 9.8 mm From China

1.75 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.2 x 6.1 mm

26.94 ct Oval Howlite, 27.5 x 20.5 mm From the United States

8.35 ct Round Agate, 12.1 mm From Indonesia

2.69 carat Square Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gems, 5 x 5 mm

3.71 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4 x 3.9 mm

6.42 ct Round Pietersite, 10.8 mm From Namibia

1.28 ct Oval Cut Peridot, 8 x 5.9 mm From China

13.48 carat Emerald-Cut Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 18 x 13.1 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT