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ID: 4458742 pcs
thumb image of 3ct Trillion Facet Swiss Blue Topaz (ID: 445874)
3.03 ct Topaz
7.1 x 7.1 mm
$ 19.79
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ID: 4212272 pcs
thumb image of 1.8ct Trillion Facet Violet Blue Tanzanite (ID: 421227)
1.83 ct Tanzanite
7 x 6.7 mm
$ 212.63
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ID: 3775171 pcs
thumb image of 12.3ct Trillion Cabochon Multicolor Ammolite (ID: 377517)
12.33 ct Ammolite
18.3 x 18 mm
$ 465.33
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ID: 4374321 pcs
thumb image of 0.9ct Trillion Facet Swiss Blue Topaz (ID: 437432)
0.87 ct Topaz
6.2 x 6.1 mm
$ 4.35
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ID: 4213012 pcs
thumb image of 2.1ct Trillion Facet Violet Blue Tanzanite (ID: 421301)
2.12 ct Tanzanite
7.2 x 7 mm
$ 246.32
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ID: 4157451 pcs
thumb image of 1.6ct Trillion Facet Green Tsavorite Garnet (ID: 415745)
1.56 ct Tsavorite Garnet
7.8 x 7.2 mm
$ 1059.24
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ID: 4213421 pcs
thumb image of 1.1ct Trillion Facet Violet Blue Tanzanite (ID: 421342)
1.14 ct Tanzanite
7.1 x 6.7 mm
$ 132.46
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ID: 4213122 pcs
thumb image of 2.5ct Trillion Facet Violet Blue Tanzanite (ID: 421312)
2.47 ct Tanzanite
7.1 x 6.9 mm
$ 286.99
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ID: 4065061 pcs
thumb image of 16.1ct Trillion Facet Pink Kunzite (ID: 406506)
16.13 ct Kunzite
17.6 x 13.9 mm
$ 682.94
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ID: 3631591 pcs
thumb image of 27ct Triangle Green Variscite (ID: 363159)
26.96 ct Variscite
23.7 x 22.8 mm
$ 134.80
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ID: 42334010 pcs
thumb image of 5.4ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 423340)
5.35 ct Rhodolite Garnet
5.2 x 5.2 mm
$ 42.80
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ID: 3798511 pcs
thumb image of 119.1ct Trillion Cabochon Multicolor Dendritic Chalcedony (ID: 379851)
119.09 ct Dendritic Chalcedony
52.9 x 51.8 mm
$ 178.64
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ID: 4211912 pcs
thumb image of 2.1ct Trillion Facet Violet Blue Tanzanite (ID: 421191)
2.11 ct Tanzanite
7.3 x 7.2 mm
$ 245.16
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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: 4211922 pcs
thumb image of 2.6ct Trillion Facet Violet Blue Tanzanite (ID: 421192)
2.60 ct Tanzanite
7.2 x 7.1 mm
$ 302.09
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ID: 4243897 pcs
thumb image of 2.8ct Trillion Facet Pinkish Rose Rhodolite Garnet (ID: 424389)
2.76 ct Rhodolite Garnet
5 x 4.9 mm
$ 22.08
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ID: 4288416 pcs
thumb image of 1.9ct Trillion Facet Swiss Blue Topaz (ID: 428841)
1.90 ct Topaz
4.2 x 4.1 mm
$ 9.50
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ID: 3614691 pcs
thumb image of 2.7ct Trillion Facet Yellow Golden Beryl (ID: 361469)
2.69 ct Golden Beryl
9.9 x 9.7 mm
$ 53.80
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ID: 2535051 pcs
thumb image of 0.6ct Trillion Facet Golden Brown to Orange Color-Change Garnet (ID: 253505)
0.64 ct Color-Change Garnet
5.5 x 5.4 mm
$ 57.60
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ID: 2203901 pcs
thumb image of 14.7ct Trillion Facet Orange Sphalerite (ID: 220390)
14.70 ct Sphalerite
14.7 x 14.6 mm
$ 797.86
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ID: 4212242 pcs
thumb image of 2ct Trillion Facet Violet Blue Tanzanite (ID: 421224)
2.03 ct Tanzanite
7.2 x 7 mm
$ 235.87
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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