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| ID: 4691471 pcs |
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| 6.95 ct Jasper |
| 18 x 12.9 mm |
| $ 5.07 |
| Item in Stock |
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| ID: 3477042 pcs |
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| 16.77 ct Pietersite |
| 18.3 x 13.2 mm |
| $ 67.08 |
| Item in Stock |
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| ID: 4691401 pcs |
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| 7.25 ct Jasper |
| 17.9 x 12.9 mm |
| $ 5.29 |
| Item in Stock |
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| ID: 4691451 pcs |
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| 8.46 ct Jasper |
| 17.8 x 12.9 mm |
| $ 6.18 |
| Item in Stock |
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| ID: 4691421 pcs |
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| 8.56 ct Jasper |
| 18 x 12.9 mm |
| $ 6.25 |
| Item in Stock |
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| ID: 3286211 pcs |
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| 21.17 ct Rose Quartz |
| 18.1 x 13.2 mm |
| $ 25.40 |
| Item in Stock |
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| ID: 4691381 pcs |
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| 9.06 ct Jasper |
| 17.7 x 12.8 mm |
| $ 6.61 |
| Item in Stock |
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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: 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: 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: 3477221 pcs |
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| 10.68 ct Pietersite |
| 18.1 x 13.1 mm |
| $ 42.72 |
| 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: 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: 2882132 pcs |
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| 21.06 ct Seraphinite |
| 18 x 13 mm |
| $ 35.80 |
| Item in Stock |
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| ID: 3478552 pcs |
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| 17.13 ct Pietersite |
| 18.1 x 13.1 mm |
| $ 68.52 |
| Item in Stock |
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| ID: 2662761 pcs |
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| 19.75 ct Ruby-Zoisite |
| 18.2 x 12.9 mm |
| $ 54.31 |
| 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: 3342941 pcs |
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| 17.46 ct Rose Quartz |
| 17.8 x 13.2 mm |
| $ 21.30 |
| Item in Stock |
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| ID: 3286452 pcs |
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| 19.12 ct Seraphinite |
| 18.1 x 13.2 mm |
| $ 34.42 |
| Item in Stock |
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| ID: 3707652 pcs |
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| 25.02 ct Jasper |
| 18 x 13.1 mm |
| $ 25.02 |
| Item in Stock |
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| ID: 4691391 pcs |
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| 6.89 ct Jasper |
| 17.9 x 12.9 mm |
| $ 5.03 |
| 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.
