Calibrated 16 x 16 mm Trillion Shape Loose Natural Gemstones from ...

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 Trillion shapes, facet cut and cabochon gems available now in 16 mm x 16 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

i love this site, the gems are always of good quality, i've been buy gifts from the site for 10 years, love it

Posted By Jf in January, 2024

Source: Bizrate

Overall Rating -> 10

Excellent site.

Posted By Boru in December, 2023

Source: Bizrate

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

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

Overall Rating -> 10

The website is easy to search, the variety of gems is excellent and the educational information is interesting and helpful! Love browsing and shopping the GemSelect website!

Posted By Happiness in January, 2024

Source: Bizrate

Overall Rating -> 10

Easy to use as always and in all steps from opening site to paying.

Posted By Pete in February, 2024

Source: Bizrate

Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

Source: Bizrate

Overall Rating -> 10

Purchased for my granddaughter she was very pleased with it.

Posted By Charlie in April, 2024

Source: Bizrate

Overall Rating -> 10

Easy and fast

Posted By Mark in February, 2024

Source: Bizrate

Overall Rating -> 9

It went well

Posted By Rob in December, 2023

Source: Bizrate

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

Easy to navigate

Posted By G Funk in December, 2023

Source: Bizrate

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

Source: Bizrate

Overall Rating -> 10

the searching format was easy to find what i needed. It helped to be able to sort Lowest price to Highest because i wasnt looking to spend too much but i did want an actual stone and not imitation.

Posted By PixelComposer in January, 2024

Source: Bizrate

Overall Rating -> 10

My overall interaction with your website was pleasant, as always.

Posted By RJ in April, 2024

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.

979

Gemstones A-Z

Buy Trillion Shape 16x16 mm Gems

4.85 ct Loose Multicolor Mystic Quartz, 9.1 mm Round Concave Cut From Brazil

1.67 carat Pear Shape Smoky Quartz, loose Certified Smoky Quartz from Brazil, Natural Untreated Gem, 15.8 x 5 mm

4.96 ct Loose Pink Kunzite, 11.6 x 8.9 mm Odd Shaped From Afghanistan

1.22 ct Yellow Beryl, 8.3 x 6.3 mm Oval Cut From Madagascar

7.38 ct Oval Star Sunstone, 13.1 x 11.7 mm From India

2.82 carat White Topaz, Cushion loose Topaz from Brazil, Natural Untreated Gems, 4.6 x 4.6 mm

4.24 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14.1 x 10 mm

11.8 ct Loose Oval Agate, 14.1 x 12.5 mm From Indonesia

3.39 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5 mm

3.77 carat Pink Sapphire, Pear Shape loose Sapphire from Madagascar, Natural Gems, 4.9 x 3 mm

1.86 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 7 x 7 mm

2.97 ct Oval Cut Golden Beryl, 9 x 6.9 mm From Madagascar

4.91 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.8 x 10.1 mm

30.74 ct Pencil Cut Tiger's Eye, 33.5 x 10.5 mm From Thailand

1.19 carat Orange Citrine, Marquise Cut loose Citrine from Brazil, Natural Untreated Gems, 8 x 4 mm

4.53 ct Pink Morganite, 11.5 x 11 mm Trillion Cut From Afghanistan

14.7 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 21.5 x 17 mm

0.57 carat London Blue Topaz, Oval loose Topaz from Brazil, Natural Gem, 6.2 x 4 mm

45.9 ct Oval Rainbow Moonstone, 32.4 x 23.6 mm From the United States

0.54 carat Green Sapphire, Trillion-Cut loose Sapphire from Madagascar, Natural Gem, 5 x 4.8 mm

2.69 carat Square Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 4.1 x 4 mm

4.39 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 14 x 9.7 mm

20.31 ct Oval Cut Strawberry Quartz, 19.3 x 15.5 mm From Russia

10.94 carat Black Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 20.3 x 8.6 mm

1.92 carat Swiss Blue Topaz, Fancy-Cut loose Topaz from Brazil, Natural Gems, 7.1 x 5 mm

1.5 ct Loose Orange Moonstone, 8.2 x 7.9 mm Trillion Cut From India

1.37 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 15.9 x 3 mm

5.01 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.1 x 10 mm

4.48 ct Asscher Cut Smoky Quartz, 9.9 x 9.8 mm From Brazil

1.83 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 8.3 x 6.8 mm

0.92 carat Green Tourmaline, Emerald Cut loose Tourmaline from Mozambique, Natural Untreated Gem, 11.1 x 3.8 mm

1.73 carat Brown Mali Garnet, Oval loose Mali Garnet from Mali, Natural Untreated Gem, 7.9 x 6 mm

Gemstone Information

Gemstone SHOP

POLICIES

WHO ARE WE?

Gemstone EDUCATION

WE ARE LOCATED AT