17 Carat Moissanite (Trillion, 20.21×20.21mm, White)
Color:
Actual size is set for screen
How big is a 17 carat trillion-cut Moissanite?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 17ct trillion-cut Moissanite would be around 20.21×20.21 mm (±6%). Check how big it looks on a ring and finger.
Ring:
Skin tone:
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Ring width:
3.0 mm
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Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
120 % |
|
Saved...
|
|
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Ring diameter:
16.9 mm
|
Additional Info
Named after French chemist Henri Moissan, who discovered it in 1893, natural moissanite is extremely rare and not used for jewelry. Lab-created moissanite, however, is a very popular diamond simulant - and significantly cheaper than diamonds.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
|
Name:
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Moissanite |
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Shape:
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Trillion |
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Chemical Formula:
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SiC |
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Crystal Structure:
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Hexagonal |
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Hardness:
|
9 - 9.5 |
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Specific Gravity
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3.22 |
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Carat weight:
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17 ct |
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Gram weight:
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3.4 g (0.1199 ounces) |
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Points:
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1700 pts |
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Length:
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20.21 mm |
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Width:
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20.21 mm |
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Est. face-up size:
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253.24 mm² |
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Volume:
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1055.9 mm³ |
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Length-to-width ratio:
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1 |
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Refractive Index:
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2.65 - 2.69 |
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Luster:
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Adamantine |
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Wearability:
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Excellent |
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Care Instructions:
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No special or unusual care |
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Color:
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Moissanite can be found in the following colors:
            
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Birthstone:
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Moissanite is not an official birthstone of any month |
Popular comparisons:
- 0.75ct Moissanite (Trillion, White, 7.14 x 7.14) vs. 2ct Emerald (Emerald, Green, 9.15 x 6.78)
- 0.75ct Moissanite (Trillion, White, 7.14 x 7.14) vs. 2ct Moissanite (Emerald, White, 8.65 x 6.41)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)
- 1.16ct Diamond (Round, White, 6.82 x 6.85) vs. 1.2ct Diamond (Round, White, 6.82 x 6.86)
- 6ct Morganite (Cushion, Light Red, 12 x 10) vs. 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49)