Calibrated 18 x 13 mm Pear Shape Natural Loose Gemstones: GemSelect

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 Pear shapes, facet cut and cabochon gems available now in 18 x 13 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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blessed be the lord blessed be the saved blessed be the work blessed be the traveled i write down my good times in these stones and when times are gray i can still se the sunny days refract in these stones

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Gemstones A-Z

Buy Pear Shape 18x13 mm Gems

0.09 ct Black Diamond, 2 mm Diamond Cut From India

7.44 carat Yellow Citrine, Emerald Cut loose Citrine from Bolivia, Natural Untreated Gem, 13.9 x 10 mm

1.76 carat Oval Opal, loose Certified Opal from Ethiopia, Natural Gems, 8.2 x 6.2 mm

1.8 carat Oval Demantoid Garnet, loose Certified Demantoid Garnet from Namibia, Natural Untreated Gems, 5.1 x 4.2 mm

2.04 carat Emerald Cut Pyrope Garnet, loose Certified Pyrope Garnet from Mozambique, Natural Untreated Gems, 5.8 x 3.9 mm

2.71 ct Loose Yellow Sapphire, 4.8 mm Round Cut From Tanzania

2.47 carat Orange Hessonite Garnet, Cushion loose Hessonite Garnet from Sri Lanka, Natural Untreated Gem, 7 x 7 mm

5.94 carat Oval Mystic Quartz, loose Certified Mystic Quartz from Brazil, Natural Gems, 11 x 9 mm

4.85 carat Green Tourmaline, Carved Flower loose Tourmaline from Mozambique, Natural Untreated Gem, 15.3 x 11.7 mm

0.89 carat Swiss Blue Topaz, Pear Shape loose Topaz from Brazil, Natural Gem, 7 x 5.3 mm

9.79 ct Yellow Quartz, 14.2 x 11.3 mm Oval Cut From Brazil

13.71 ct Loose Pear Labradorite, 20.3 x 14.8 mm From Madagascar

0.77 carat Blue Sapphire, Oval loose Sapphire from Madagascar, Natural Gem, 5.9 x 4.1 mm

3.46 carat Square Opal, loose Certified Opal from Ethiopia, Natural Untreated Gems, 4.1 x 3.7 mm

11.3 ct Green Amazonite, 10.4 x 10.2 mm Cushion Cut From Madagascar

1.33 ct Round Labradorite, 6.3 mm From Madagascar

3.78 carat Blue Tanzanite, Round loose Tanzanite from Tanzania, Natural Gem, 9 mm

0.74 ct Square Buff Top Peridot, 5.1 x 5.1 mm From China

0.78 ct Loose Pink Sapphire, 5.9 x 4 mm Oval Cut From Tanzania

1.48 carat Purple Sapphire, Pear Shape loose Sapphire from Tanzania, Natural Untreated Gem, 8.5 x 6.3 mm

1.72 ct Oval Carnelian, 9.1 x 7.2 mm From India

26.88 ct Carved Chalcedony, 14.2 x 14 mm From Brazil

2.44 carat Orange Hessonite Garnet, Oval loose Hessonite Garnet from Madagascar, Natural Untreated Gem, 9.6 x 7.5 mm

7.5 ct Oval Larimar, 15.7 x 12 mm From the Dominican Republic

49.42 ct Pencil Cut Jasper, 29.8 mm From India

0.82 ct Loose Cushion Cut Smoky Quartz, 7.2 x 5.1 mm From Brazil

10.63 ct Asscher Cut Rose Quartz, 13.1 x 13 mm From South Africa

0.73 ct Loose Yellow Sapphire, 3.6 x 3.6 mm Princess Cut From Tanzania

0.7 ct Loose Yellow Sapphire, 6.1 x 4.2 mm Oval Cut From Tanzania

2.32 carat White Zircon, Oval loose Zircon from Cambodia, Natural Gems, 7.1 x 5 mm

4.45 carat Pear Shape Amethyst, loose Certified Amethyst from Brazil, Natural Untreated Gem, 15 x 9.9 mm

3.4 ct Round Rutile Quartz, 10.8 mm From India

Gemstone Information

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