Calibrated Heart Shape Gemstones 8 x 8 mm size from GemSelect

Some people by gems by color or price, but for many, it may be better to buy gems by size - especially if you're in need to a gem to replace another previous item that was lost or damaged: Calibrated heart shaped facet cut gems and cabochon gems in 8 x 8 mm size. Buy a wide range of calibrated gemstones by size 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.

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Overall Rating -> 10

Easy to use website, made it very easy to buy. Will shop here again.

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Overall Rating -> 9

My first purchase went well. I will purchase more gems in the future.

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Overall Rating -> 10

Very pleased with shopping on this site. It's easy to navigate and information about gemstones is very good.

Posted By Kate in December, 2023

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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

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Overall Rating -> 10

Great selection and excellent website.

Posted By JBW in October, 2023

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Overall Rating -> 10

I was looking for ammolite for my husband. Other websites are not always clear about whether they have genuine ammolite or simulated ammolite. I have purchased from GemSelect before and trust that the stones are genuine. Finding the stones I want is easy, and I love all of the search filter options!

Posted By Ana in September, 2023

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Overall Rating -> 10

Great site

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Overall Rating -> 10

I searched for the item by description and millimeter and had my choice come up and then made the best selection.

Posted By Tim in April, 2024

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Overall Rating -> 10

I really enjoy browsing through GemSelect. The selection is always marvelous and I love how detailed everything is described. The only thing I noticed is that when browsing through my phone, the videos of the gems do not load. If there were more videos of the gems, that would be amazing, though I understand that is a lot of work on GemSelect's part! Checking out is also very fast and easy, and I love that the return policy is very good, though I hope I don't have to use it anytime soon.

Posted By ChiChi in January, 2024

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Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

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Overall Rating -> 9

I am of the opinion that the company gem select cares about the product beautiful gems it sells and the cost of the gem I purchased was small i was treated as if it cost a lot of money and product was described in detail and i felt good about the little stones i had ordered.

Posted By Sparkle in March, 2024

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Overall Rating -> 10

I particularly like information about product provided with purchase.

Posted By Dick in May, 2023

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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

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Overall Rating -> 10

Interested in unusual stones and found many that I purchased or will purchase in the near future. I have been a customer of gem select for almost ten years and have always been pleased with buying experience and the delivered product

Posted By Fairhope Pete in December, 2023

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Overall Rating -> 10

The gem stone always has a great selection of beautiful stones. The calibrated stone fit my ring perfectly. Thank you gem select !

Posted By Jen in August, 2023

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Gemstones A-Z

Buy Heart Shape 8x8 mm Gems

2.16 carat Orange Hessonite Garnet, Round loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7.1 mm

18.51 ct Oval Cut Rose Quartz, 19.5 x 16 mm From South Africa

4.46 carat Blue Sapphire, Oval loose Sapphire from Sri Lanka, Natural Gem, 11.6 x 8.3 mm

0.6 ct Blue Kyanite, 3.7 mm Round Cut From Nepal

8.65 carat Pear Shape Mystic Quartz, loose Certified Mystic Quartz from Brazil, Natural Gem, 18.2 x 13 mm

0.7 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.7 x 4.8 mm

25.97 ct Yellow Quartz, 19 x 19 mm Cushion Checkerboard From Brazil

1.5 ct Yellow Beryl, 8.9 x 6.9 mm Cushion Cut From Brazil

2.55 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8 x 6.1 mm

3.44 carat Orange Hessonite Garnet, Emerald Cut loose Hessonite Garnet from Madagascar, Natural Untreated Gems, 6.1 x 6 mm

3.84 carat White Zircon, Diamond-Cut loose Zircon from Cambodia, Natural Gems, 5.6 mm

26.56 ct Oval Rainbow Moonstone, 24.5 x 17.6 mm From the United States

8.6 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 13 x 10 mm

18.92 ct Fancy Jasper, 24.9 x 18.4 mm From Indonesia

0.86 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7.3 x 5.2 mm

0.07 ct Black Diamond, 2.5 mm Diamond Cut From India

2.75 carat Swiss Blue Topaz, Oval loose Topaz from Brazil, Natural Gems, 5.2 x 3.1 mm

3.7 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7.2 x 5.2 mm

4.18 ct Green Jade, 11.7 x 9.8 mm Oval Cut From Myanmar

10.05 ct Octagon Cut Smoky Quartz, 13.7 x 13.6 mm From Brazil

1.45 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 17.3 x 3.3 mm

1.24 carat Round Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 7.1 mm

33.09 ct Fancy Dendritic Agate, 25.6 x 22.9 mm From India

3.88 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.2 x 8.9 mm

0.83 carat Green Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gem, 7.1 x 4.9 mm

10.2 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 17.4 x 14.6 mm

2.87 ct Loose Baguette Labradorite, 9.1 x 7 mm From Madagascar

0.57 ct Loose Orange Sapphire, 4.4 x 4.3 mm Cushion Cut From Tanzania

2.35 carat Sky Blue Topaz, Emerald Cut loose Topaz from Brazil, Natural Gems, 7.2 x 5.1 mm

15.35 ct Oval Jasper, 25.9 x 17.8 mm From Indonesia

1.85 ct Oval Cut Rainbow Moonstone, 9 x 6.9 mm From the United States

3.64 ct Yellow Agate, 10.8 x 9.1 mm Oval Cut From India

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