Calibrated 11 x 11 mm Square Shape Loose Natural Gemstones from Ge...

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 11 mm x 11 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.

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Gemstones A-Z

Buy Square Shape 11x11 mm Gems

1.9 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 8.2 x 6.8 mm

0.54 ct Loose Pink Sapphire, 5.9 x 4.2 mm Oval Cut From Tanzania

3.39 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 11 x 9 mm

0.82 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gem, 7.1 x 5.2 mm

0.74 carat Pink Morganite, Pear Shape loose Morganite from Afghanistan, Natural Untreated Gem, 8.2 x 4.4 mm

1.9 ct Blue Green Apatite, 5.4 x 3.9 mm Oval Cut From Madagascar

0.44 carat Oval Ruby, loose Certified Ruby from Myanmar, Natural Gem, 5 x 3.9 mm

1.21 carat Blue Tanzanite, Round loose Tanzanite from Tanzania, Natural Gem, 6.2 mm

4.18 ct Fancy Fire Agate, 15.4 x 9.7 mm From Mexico

9.17 ct Oval Pietersite, 14.1 x 10.2 mm From Namibia

0.65 ct Loose Violet Spinel, 5.2 x 4.6 mm Cushion Cut From Tanzania

3.2 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 6.9 x 5 mm

4.09 carat Yellow Citrine, Oval loose Citrine from Brazil, Natural Untreated Gem, 12.7 x 8.9 mm

1.75 carat Heart Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 6.1 x 6.1 mm

1.01 carat Pink Morganite, Pear Shape loose Morganite from Brazil, Natural Untreated Gem, 8.7 x 5.5 mm

3.13 carat Trillion Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 10.1 x 9.9 mm

4.45 ct Fancy Fire Agate, 13.5 x 7.7 mm From Mexico

4.54 carat Blue Green Zircon, Pear Shape loose Zircon from Cambodia, Natural Gem, 9.9 x 8.1 mm

0.49 carat Opal, loose Certified Opal from Ethiopia, Natural Gem, 8.4 x 5.8 mm

6.02 ct Carved Prehnite, 15.4 x 11.3 mm From South Africa

3.44 ct Brown Moonstone, 9 x 9 mm Carved From India

5.41 ct Cushion Boulder Opal, 13.6 x 9.9 mm From Australia

38.72 carat Pear Obsidian, loose Certified Obsidian from the United States, Natural Untreated Gem, 31.2 x 28.4 mm

2.45 carat Pear Shape Peridot, loose Certified Peridot from China, Natural Untreated Gems, 7.1 x 5 mm

0.82 ct Octagon Cut Color-Change Diaspore, 7.5 x 4.7 mm From Turkey

2.51 carat Orange Spessartite Garnet, Round loose Spessartite Garnet from Mozambique, Natural Untreated Gems, 4.7 mm

1.77 carat Diamond Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 3.2 mm

1.03 carat Pear Shape Chrysoberyl, loose Certified Chrysoberyl from Sri Lanka, Natural Untreated Gem, 7.5 x 5.5 mm

13.93 carat Ammolite, loose Certified Ammolite from Canada, Natural Gem, 21.2 x 14.5 mm

1.44 carat Yellow Citrine, Emerald Cut loose Citrine from Brazil, Natural Untreated Gem, 8 x 6.1 mm

3.25 carat Sky Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gems, 7 x 5.1 mm

27.53 ct Oval Howlite, 26.8 x 20.1 mm From the United States

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