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CALIBRATED GEMSTONE SIZES
CALIBRATED GEMSTONE SIZES
Calibrated gemstones refer to those that have been cut and polished to standard or specific dimensions, making them easy to use in pre-made jewelry.
This calibration process ensures that the stones fit into standard settings, reducing the need to create custom settings for each stone and streamlining the jewelry design and manufacturing process. Here are some key points about calibrated gemstones:
- Standard Dimensions: Calibrated stones are cut into sizes and shapes that follow standard measurements, such as specific ring sizes or dimensions for earring, necklace, and bracelet settings.
- Facilitates Mass Production: By using calibrated stones, jewelers can design and mass-produce pieces, as settings can be pre-fabricated to fit these standardized stones.
Variety of Shapes and Sizes: Although standardized, calibrated stones can come in a variety of shapes and sizes, including round, oval, square, rectangular, and others. - Efficiency and Cost: Using calibrated stones can reduce the costs and time required for jewelry making, as it eliminates the need for custom adjustments and modifications to settings.
- Popularity in Commercial Jewelry: Calibrated stones are common in commercial jewelry and are especially useful for jewelers who work with high-volume production.
- Setting Precision: They allow for greater precision in the stone's setting in the jewelry, ensuring proper placement and support, which is crucial for the piece's durability and aesthetics.
- Availability: Calibrated stones are generally widely available, making them accessible to a wide range of jewelry designers and manufacturers.
In short, calibrated gemstones are a practical and efficient solution in the jewelry industry, offering uniformity in size and shape that facilitates the process of large-scale jewelry design and manufacturing.
Depending on the cut, we can find the following standard sizes:
| ROUND |
2 mm |
2.5 mm |
3 mm |
3.5 mm |
4 mm |
5 mm |
6 mm |
6.5 mm |
7 mm |
8 mm |
9 mm |
10 mm |
11 mm |
12 mm |
13 mm |
14 mm |
15 mm |
| PEAR |
5 x 3 mm |
6 x 4 mm |
7 x 5 mm |
8 x 6 mm |
9 x 6 mm |
10 x 7 mm |
12 x 8 mm |
13 x 9 mm |
14 x 9 mm |
15 x 10 mm |
16 x 12 mm |
18 x 13 mm |
20 x 15 mm |
| OVAL |
5 x 3 mm |
6 x 4 mm |
7 x 5 mm |
8 x 6 mm |
9 x 7 mm |
10 x 8 mm |
11 x 9 mm |
12 x 10 mm |
14 x 10 mm |
14 x 10 mm |
14 x 12 mm |
16 x 12 mm |
18 x 13 mm |
20 x 15 mm |
| EMERALD |
5 x 3 mm |
6 x 4 mm |
7 x 5 mm |
8 x 6 mm |
9 x 7 mm |
10 x 8 mm |
11 x 9 mm |
12 x 10 mm |
14 x 12 mm |
16 x 12 mm |
18 x 13 mm |
20 x 15 mm |
25 x 18 mm |
27 x 20 mm |
30 x 22 mm |
| TRILLON |
4 x 4 mm |
5 x 5 mm |
6 x 6 mm |
7 x 7 mm |
8 x 8 mm |
9 x 9 mm |
10 x 10 mm |
11 x 11 mm |
12 x 12 mm |
13 x 13 mm |
14 x 14 mm |
15 x 15 mm |
16 x 16 mm |
| MARQUISE |
4 x 2 mm |
5 x 2.5 mm |
5 x 3 mm |
6 x 3 mm |
7 x 3.5 mm |
8 x 4 mm |
10 x 5 mm |
12 x 6 mm |
14 x 7 mm |
16 x 8 mm |
18 x 9 mm |
20 x 10 mm |
| PRINCESS |
4 x 4 mm |
5 x 5 mm |
6 x 6 mm |
7 x 7 mm |
8 x 8 mm |
9 x 9 mm |
10 x 10 mm |
11 x 11 mm |
12 x 12 mm |
13 x 13 mm |
14 x 14 mm |
| HEAR |
5 x 5 mm |
6 x 6 mm |
7 x 7 mm |
8 x 8 mm |
9 x 9 mm |
10 x 10 mm |
11 x 11 mm |
12 x 12 mm |
| CUSHION |
6 x 4 mm |
8 x 6 mm |
10 x 8 mm |
11 x 9 mm |
12 x 10 mm |
14 x 10 mm |
14 x 12 mm |