Calibrated 5 mm Natural Loose Gemstones in all shapes: GemSelect

Buy gems by size in millimeters. Some people by gems by color or prize, 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 sizes and shapes, facet cut and cabochon gems available now in the 5 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 usually 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 round shape settings will allow 0.3 mm or slightly higher even. This small variance can usually be accommodated for most 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.

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Overall Rating -> 10

Love gemselect

Posted By Joshua Howard in March, 2024

Source: Bizrate

Overall Rating -> 10

I have actually done business with them before and was quite satisfied with them then.My Mother collected turtle items and when I saw the Mother of Pearl turtle...I just thought of her and decided to buy it. It's even tinier than I thought, but so adorable!The gemstones I bought are for jewelry for my daughter's birthday.

Posted By Ktreva52 in February, 2024

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 -> 8

Very easy to find the specific stone I was looking for. I am pleased by both the selection and the price of the stones that are available. The only "bad" thing that I have to say is that the interface of the site is outdated.

Posted By Nick in March, 2024

Source: Bizrate

Overall Rating -> 10

GemSelect has the Best gems. Clear photos and detailed description helps me make the best choice. I have Never been disappointed by thier quality items.

Posted By Rock Hound in July, 2023

Source: Bizrate

Overall Rating -> 10

was just windowshopping and spotted a couple "Very Uncommons", a tsavorite & a demantoid garnet that were both in a size I was looking for, & that I could very easily pay for -- so figured I would grab the tsavo ASAP and got the demantoid to accompany so they wouldn't be lonely.

Posted By Kittypie070 in April, 2024

Source: Bizrate

Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

Source: Bizrate

Overall Rating -> 10

The site was easy to shop and the payment was secure. I’m looking forward to receiving my order!

Posted By JAB93 in June, 2023

Source: Bizrate

Overall Rating -> 9

over the experience was similar to other sites i have used. The only real note I have is the checkout experience was tedious and discriminatory, i wouldn't accept visa gift cards, which not only have guaranteed funds but help protect from misuse of personal information, but would not accept my visa b/c it is a prepaid card. I don't have bank account and I have been using the prepaid card for years without issue so this was disappointing to me. I feel safer using reputable gem sites rather than amazon or ebay (I have been sold fake gems with fake certs on both), but not being able to use my own valid legitimate funds and having to find a friend to buy for me b/c I use a non-bank card like 40% of the country is insulting.

Posted By Iggywiggly in January, 2024

Source: Bizrate

Overall Rating -> 10

I love GemSelect, photos and details are great.

Posted By #1 in February, 2024

Source: Bizrate

Overall Rating -> 10

Easy to find products I want. I've ordered several times from gem select and never any problems. Will order again. Thank you.

Posted By Ray in January, 2024

Source: Bizrate

Overall Rating -> 10

The website is well organized and works fast forward and back. Plenty of filters. Each gem is described in detail and you receive the one pictured. Gem material info and sources available. I would like to see more specifics on sources besides country- at least region or state and in the US with Turquiose which mine. Thanks!

Posted By Orchidisle in February, 2024

Source: Bizrate

Overall Rating -> 10

Very good, very fast, everything as described.

Posted By B in October, 2023

Source: Bizrate

Overall Rating -> 10

Everthing about researching and ordering from Gemselect was easy and uncomplicated. In the past I had payment problems, but your customer rep, Thomas, helped me get everything right. I will continue using Gemselet in the future for these reasons.

Posted By WildwillyfromArizona in August, 2023

Source: Bizrate

Overall Rating -> 10

Wonderful selection of gems to choose from. Have made many purchases and was only slightly disappointed once.

Posted By Teemo in February, 2024

Source: Bizrate

Gemstones A-Z

Buy 5 mm Gemstones

1.04 ct Purple Spinel, 6.5 x 4.9 mm Cushion Cut From Tanzania

1.88 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gem, 8.7 x 6.1 mm

0.85 carat London Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.2 x 5.1 mm

5.43 ct Asscher Cut Smoky Quartz, 10.4 x 10.4 mm From Brazil

1.34 carat Pink Malaya Garnet, Round loose Malaya Garnet from Tanzania, Natural Untreated Gem, 6.5 mm

1.94 carat Yellow Citrine, Trillion loose Citrine from Brazil, Natural Untreated Gems, 7.1 x 6.9 mm

1.76 ct Green Sphene, 8.1 x 6.3 mm Oval Cut From Sri Lanka

4.79 ct Oval Cut Peridot, 7.8 x 5.8 mm From China

9.66 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gems, 12 x 9.9 mm

3.05 ct Yellow Agate, 10.3 x 8.7 mm Oval Cut From India

0.47 ct Oval Cut Kornerupine, 4.5 x 3.2 mm From Sri Lanka

6.45 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 14.1 x 10.1 mm

3.16 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 4.9 mm

2.74 carat Trillion Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4 x 4.1 mm

0.89 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4.1 mm

1.05 carat Blue Topaz, Marquise-Cut loose Topaz from Brazil, Natural Gem, 10 x 5.2 mm

1.37 carat Pear Shape Opal, loose Certified Opal from Australia, Natural Untreated Gem, 12.1 x 7.4 mm

4.71 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.5 x 4.5 mm

2.48 carat Oval Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gems, 6.1 x 4.2 mm

3.43 carat Yellow Tourmaline, Oval loose Tourmaline from Mozambique, Natural Untreated Gems, 7 x 5.5 mm

1.71 carat Oval Rhodolite Garnet, loose Certified Rhodolite Garnet from Mozambique, Natural Untreated Gem, 7.4 x 6.4 mm

7.15 ct Loose Yellow Sapphire, 10.6 x 10.4 mm Cushion Cut From Thailand

0.93 ct Oval Cut Kornerupine, 7.5 x 5 mm From Sri Lanka

3.03 carat Blue Tanzanite, Oval loose Tanzanite from Tanzania, Natural Gems, 7.9 x 6 mm

3.8 ct Square Cut Rainbow Moonstone, 3.2 x 3.2 mm From Sri Lanka

2.5 carat Oval Opal, loose Certified Opal from Australia, Natural Untreated Gem, 11.7 x 7.7 mm

2.85 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7 x 5.2 mm

14.2 ct Oval Star Ruby, 14.3 x 12.8 mm From Madagascar

1.23 ct Oval Cut Kornerupine, 8.1 x 6.1 mm From Sri Lanka

0.54 ct Loose Yellow Sapphire, 5.8 x 3.9 mm Oval Cut From Tanzania

20.09 ct Carved Smoky Quartz, 35.1 x 19.1 mm From Brazil

4.41 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 6 mm

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