2ct Sapphire (Trillion, 8.86×8.86mm, Dark Bluish Green) vs 1ct Diamond (Round, 6.5×6.5mm, White)
Quick summary: When looked from above (face-up position), 2ct Sapphire (8.86×8.86mm, trillion cut) appears 47% larger than 1ct Diamond (6.5×6.5mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2ct Sapphire (trillion cut) |
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1ct Diamond (round cut) |
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dark bluish green |
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| 8.86×8.86 mm | 6.5×6.5 mm | |
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Actual sizes of
2ct Sapphire Trillion (8.86×8.86mm, Dark Bluish Green)
and
1ct Diamond Round (6.5×6.5mm, White)
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.
| 2 Ct Sapphire (Trillion) | 1 Ct Diamond (Round) | |
| 8.86×8.86 mm | vs | 6.5×6.5 mm |
| 48.67 mm² | 33.18 mm² |
| 2ct Sapphire Trillion (8.86×8.86mm) | |
| 1ct Diamond Round (6.5×6.5mm) | |
| Difference: 47% (15.49 mm²) |
2ct Sapphire Trillion (8.86×8.86mm) has approx. 47% more face-up area than 1ct Diamond Round (6.5×6.5mm).
Popular comparisons:
- 1.5ct Sapphire (Trillion, Violet, 8.05 x 8.05) vs. 1.52ct Diamond (Oval, White, 9.33 x 6.22)
- 2ct Sapphire (Trillion, Blue, 8.86 x 8.86) vs. 19ct Diamond (Princess, White, 14.7 x 14.7)
- 0.7ct Sapphire (Trillion, Blue, 6.24 x 6.24) vs. 0.7ct Diamond (Trillion, White, 6.87 x 6.87)
- 1ct Sapphire (Trillion, Blue, 7.03 x 7.03) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.7ct Sapphire (Trillion, Blue, 7 x 5) vs. 0.7ct Diamond (Trillion, White, 6.87 x 6.87)
- 2ct Sapphire (Trillion, Blue, 8.86 x 8.86) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 0.4ct Sapphire (Trillion, Blue, 5.18 x 5.18) vs. 0.6ct Ruby (Cushion, Red, 4.72 x 4.72)
- 0.8ct Sapphire (Trillion, Blue, 6 x 6) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
Enter your screen size (diagonal)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.