0.4ct Diamond (Pear, 6.67×4.02mm, White) vs 3ct Sapphire (Round, 8.62×8.62mm, Blue)
Quick summary: When looked from above (face-up position), 3ct Sapphire (8.62×8.62mm, round cut) appears 3 times larger than 0.4ct Diamond (6.67×4.02mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 0.4ct Diamond (pear cut) |
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3ct Sapphire (round cut) |
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| 6.67×4.02 mm | 8.62×8.62 mm | |
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Actual sizes of
0.4ct Diamond Pear (6.67×4.02mm, White)
and
3ct Sapphire Round (8.62×8.62mm, 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.
| 0.4 Ct Diamond (Pear) | 3 Ct Sapphire (Round) | |
| 6.67×4.02 mm | vs | 8.62×8.62 mm |
| 19.57 mm² | 58.36 mm² |
| 0.4ct Diamond Pear (6.67×4.02mm) | |
| 3ct Sapphire Round (8.62×8.62mm) | |
| Difference: 198% (38.79 mm²) |
3ct Sapphire Round (8.62×8.62mm) has approx. 198% more face-up area than 0.4ct Diamond Pear (6.67×4.02mm). In other words, it's 2.98x larger.
Popular comparisons:
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.4ct Emerald (Cushion, Green, 4.7 x 4.7)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.5ct Diamond (Pear, White, 7.19 x 4.33)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.25ct Diamond (Pear, White, 5.69 x 3.43)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.35ct Diamond (Pear, White, 6.37 x 3.84)
- 0.4ct Diamond (Pear, White, 6.67 x 4.02) vs. 0.4ct Aquamarine (Pear, Light Blue, 6.97 x 4.2)
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.