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ID: 4162381 pcs
thumb image of 4.1ct Trillion Facet Swiss Blue Topaz (ID: 416238)
4.10 ct Topaz
10.2 x 10 mm
$ 28.70
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ID: 4211832 pcs
thumb image of 1.9ct Trillion Facet Violet Blue Tanzanite (ID: 421183)
1.89 ct Tanzanite
6.6 x 6.5 mm
$ 219.60
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ID: 3776151 pcs
thumb image of 4ct Trillion Cabochon Multicolor Ammolite (ID: 377615)
3.99 ct Ammolite
16.1 x 8.8 mm
$ 150.58
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ID: 4242246 pcs
thumb image of 3.1ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 424224)
3.07 ct Rhodolite Garnet
5.2 x 5.1 mm
$ 24.56
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ID: 4825161 pcs
thumb image of 7.7ct Trillion Cabochon Multicolor Jasper (ID: 482516)
7.72 ct Jasper
20.5 x 13.9 mm
$ 4.25
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ID: 4775872 pcs
thumb image of 3.1ct Trillion Cabochon Green Maw-Sit-Sit (ID: 477587)
3.12 ct Maw-Sit-Sit
9.8 x 7.6 mm
$ 6.65
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ID: 42315710 pcs
thumb image of 5.5ct Trillion Facet Purple Rose Rhodolite Garnet (ID: 423157)
5.45 ct Rhodolite Garnet
5.2 x 5.2 mm
$ 43.60
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ID: 4528501 pcs
thumb image of 15.7ct Trillion Cabochon Multicolor Ammolite (ID: 452850)
15.67 ct Ammolite
22.4 x 16.2 mm
$ 381.25
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ID: 3360306 pcs
thumb image of 1.1ct Trillion Facet Multicolor Tourmaline (ID: 336030)
1.09 ct Tourmaline
4.1 x 4.1 mm
$ 24.03
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ID: 4323246 pcs
thumb image of 2.8ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 432324)
2.78 ct Rhodolite Garnet
5.2 x 5.1 mm
$ 22.24
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ID: 3347542 pcs
thumb image of 8.3ct Trillion Rose-Cut Black Spinel (ID: 334754)
8.33 ct Spinel
10.1 x 9.8 mm
$ 41.65
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ID: 47976010 pcs
thumb image of 2.9ct Trillion Facet Red Pyrope Garnet (ID: 479760)
2.93 ct Pyrope Garnet
4.1 x 4.1 mm
$ 20.51
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ID: 4844881 pcs
thumb image of 8.1ct Trillion Cabochon Multicolor Green Malachite (ID: 484488)
8.11 ct Malachite
13.5 x 11.6 mm
$ 8.11
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ID: 4671111 pcs
thumb image of 0.4ct Trillion Facet Light Pink Morganite (ID: 467111)
0.36 ct Morganite
4.7 x 4.6 mm
$ 19.80
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ID: 4214221 pcs
thumb image of 1ct Trillion Facet Violet Blue Tanzanite (ID: 421422)
0.98 ct Tanzanite
7.1 x 7.1 mm
$ 113.87
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ID: 4212182 pcs
thumb image of 1.9ct Trillion Facet Violet Blue Tanzanite (ID: 421218)
1.93 ct Tanzanite
7.2 x 7 mm
$ 224.25
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ID: 4745661 pcs
thumb image of 34.2ct Trillion Cabochon Violet Sugilite (ID: 474566)
34.24 ct Sugilite
29.7 x 23.9 mm
$ 172.57
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ID: 4535681 pcs
thumb image of 21.8ct Trillion Cabochon Multicolor Ammolite (ID: 453568)
21.83 ct Ammolite
19.8 x 26.7 mm
$ 807.71
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ID: 4788471 pcs
thumb image of 0.4ct Trillion Facet Light Pink Morganite (ID: 478847)
0.36 ct Morganite
5.1 x 4.9 mm
$ 19.80
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ID: 4212192 pcs
thumb image of 2.2ct Trillion Facet Violet Blue Tanzanite (ID: 421219)
2.16 ct Tanzanite
7.3 x 7.1 mm
$ 250.97
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ID: 4105881 pcs
thumb image of 8.2ct Trillion Facet Pink Kunzite (ID: 410588)
8.20 ct Kunzite
15.9 x 11.4 mm
$ 211.15
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Trillion Shaped Gems
When it comes to gemstones, shape and cut are are often used interchangeably. The reason is because the difference between the two isn't always obvious. Shape refers to the overall outline of a stone, while 'cut' refers the actual style, process or technique used to work the rough into finished gemstone pieces. Historically, a trilliant gem exhibits the basic trilliant design, featuring 43 facets cut into a triangular shape gemstone that has been worked into 1:1 ratio and cut with 43 facets. The 43 facets are based on the 'brilliant-cut' in order to maximize 'brilliance'. Like other brilliant cuts, the equilateral form of a well-cut trilliant gem should return a substantial degree of light and color to the eye. The trillion cutting style was originally introduced by the Asscher brothers (Asscher-cut) and was trademarked in 1962 by Henry Meyer Diamond Company of New York. Since the expiration of their 'trillion' patent, the term can be used to refer to all triangular shaped gems, even those which are not faceted.

Many trillions today are step-cut, scissor-cut, plain-cut, mixed-cut with undulating surfaces, and trillion gemstones are even cut en cabochon, featuring a flat bottom with a low or high dome depending on the type of gem. As long as the gemstone has a face-up outline or shape which resembles a triangle, then it can be described as a trillion-shaped gemstone. Gemstones like zircon, spinel, diamond, aquamarine, beryl and white sapphire are often cut as trillions to maximize brilliance, while darker gemstones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst are given a trilliant cut in order to lighten and brighten color (rather than focusing on brilliance). Since most diamond-cut styles are modified for colored stones, many colored stone dealers use alternative terms that refer to shape rather than cut-style.
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart