1.25ct Diamond (Trillion, 8.33×8.33mm, White) vs 1ct Sapphire (Trillion, 7.03×7.03mm, Blue)
Quick summary: When looked from above (face-up position), 1.25ct Diamond (8.33×8.33mm, trillion cut) appears 40% larger than 1ct Sapphire (7.03×7.03mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 1.25ct Diamond (trillion cut) |
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1ct Sapphire (trillion cut) |
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white |
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| 8.33×8.33 mm | 7.03×7.03 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
1.25ct Diamond Trillion (8.33×8.33mm, White)
and
1ct Sapphire Trillion (7.03×7.03mm, Blue)
as they would appear on a ring and finger.
Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Face-up Size
All things being equal, Sapphire will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond of the same size). Face-up size also depends heavily on the proportions of the cut.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.
| 1.25 Ct Diamond (Trillion) | 1 Ct Sapphire (Trillion) | |
| 8.33×8.33 mm | vs | 7.03×7.03 mm |
| 43.02 mm² | 30.64 mm² |
| 1.25ct Diamond Trillion (8.33×8.33mm) | |
| 1ct Sapphire Trillion (7.03×7.03mm) | |
| Difference: 40% (12.38 mm²) |
1.25ct Diamond (Trillion, 8.33×8.33mm) has approx. 40% more face-up area than 1ct Sapphire (Trillion, 7.03×7.03mm).
Popular comparisons:
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Sapphire (Round, Blue, 5.98 x 5.98)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Aquamarine (Emerald, Light Blue, 7.28 x 5.39)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Sapphire (Emerald, Blue, 6.39 x 4.73)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Sapphire (Baguette, Blue, 6.93 x 4.62)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1ct Sapphire (Marquise, Blue, 9.88 x 4.94)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1.25ct Sapphire (Round, Blue, 6.44 x 6.44)
- 1.25ct Diamond (Trillion, White, 8.33 x 8.33) vs. 1.25ct Diamond (Round, White, 7 x 7)