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| ID: 3707531 pcs |
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| 10.37 ct Jasper |
| 18 x 13.1 mm |
| $ 10.37 |
| Item in Stock |
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| ID: 3468592 pcs |
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| 16.41 ct Charoite |
| 18.1 x 13.2 mm |
| $ 24.62 |
| Item in Stock |
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| ID: 2735241 pcs |
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| 9.74 ct Howlite |
| 17.8 x 12.9 mm |
| $ 24.35 |
| Item in Stock |
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| ID: 4382952 pcs |
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| 25.08 ct Spinel |
| 18.2 x 13.1 mm |
| $ 75.24 |
| Item in Stock |
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| ID: 3226871 pcs |
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| 9.53 ct Howlite |
| 17.8 x 13.1 mm |
| $ 23.82 |
| Item in Stock |
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| ID: 3224361 pcs |
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| 9.15 ct Howlite |
| 18.1 x 13.1 mm |
| $ 22.88 |
| Item in Stock |
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| ID: 3708371 pcs |
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| 12.30 ct Jasper |
| 18.2 x 13.2 mm |
| $ 12.30 |
| Item in Stock |
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| ID: 4663461 pcs |
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| 10.08 ct Turquoise |
| 17.8 x 13.2 mm |
| $ 20.16 |
| Item in Stock |
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| ID: 4386331 pcs |
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| 11.18 ct Spinel |
| 18.1 x 13.1 mm |
| $ 33.54 |
| Item in Stock |
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| ID: 3825641 pcs |
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| 14.22 ct Jadeite |
| 17.7 x 13.2 mm |
| $ 99.54 |
| Item in Stock |
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| ID: 4562731 pcs |
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| 12.31 ct Pietersite |
| 18.3 x 13.1 mm |
| $ 28.68 |
| Item in Stock |
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| ID: 3342901 pcs |
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| 18.58 ct Rose Quartz |
| 18.2 x 13.1 mm |
| $ 22.67 |
| Item in Stock |
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| ID: 4386291 pcs |
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| 13.24 ct Spinel |
| 18.2 x 13.2 mm |
| $ 39.72 |
| Item in Stock |
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| ID: 4386361 pcs |
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| 12.77 ct Spinel |
| 18.1 x 13.1 mm |
| $ 38.31 |
| Item in Stock |
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| ID: 1968551 pcs |
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| 13.35 ct Ruby-Zoisite |
| 18.2 x 13 mm |
| $ 40.05 |
| Item in Stock |
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| ID: 3717152 pcs |
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| 18.62 ct Pietersite |
| 17.9 x 13.1 mm |
| $ 74.48 |
| Item in Stock |
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| ID: 3707642 pcs |
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| 22.45 ct Jasper |
| 17.9 x 12.9 mm |
| $ 22.45 |
| Item in Stock |
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| ID: 3331351 pcs |
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| 13.30 ct Ametrine |
| 17.9 x 12.9 mm |
| $ 133.00 |
| Item in Stock |
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| ID: 3478532 pcs |
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| 13.18 ct Pietersite |
| 17.7 x 13.1 mm |
| $ 52.72 |
| Item in Stock |
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| ID: 3497721 pcs |
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| 9.17 ct Charoite |
| 18.1 x 13.1 mm |
| $ 13.76 |
| Item in Stock |
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| ID: 3641101 pcs |
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| 7.89 ct Jasper |
| 18 x 13 mm |
| $ 15.78 |
| Item in Stock |
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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 oval shapes, facet cut and cabochon gems available now in 18 x13 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.
