0.12ct Sapphire (Round, 2.95×2.95mm, Blue) vs 0.15ct Diamond (Round, 3.45×3.45mm, White)
Quick summary: When looked from above (face-up position), 0.15ct Diamond (3.45×3.45mm, round cut) appears 37% larger than 0.12ct Sapphire (2.95×2.95mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.12ct Sapphire (round cut) |
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0.15ct Diamond (round cut) |
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| 2.95×2.95 mm | 3.45×3.45 mm | |
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Actual sizes of
0.12ct Sapphire Round (2.95×2.95mm, Blue)
and
0.15ct Diamond Round (3.45×3.45mm, 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.
| 0.12 Ct Sapphire (Round) | 0.15 Ct Diamond (Round) | |
| 2.95×2.95 mm | vs | 3.45×3.45 mm |
| 6.83 mm² | 9.35 mm² |
| 0.12ct Sapphire Round (2.95×2.95mm) | |
| 0.15ct Diamond Round (3.45×3.45mm) | |
| Difference: 37% (2.52 mm²) |
0.15ct Diamond Round (3.45×3.45mm) has approx. 37% more face-up area than 0.12ct Sapphire Round (2.95×2.95mm).
Popular comparisons:
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 0.7ct Diamond (Oval, White, 7.2 x 4.8)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 0.12ct Diamond (Round, White, 3.21 x 3.21)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 1.49ct Sapphire (Oval, Blue, 8.64 x 5.76)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 0.5ct Sapphire (Oval, Blue, 6 x 4)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 0.5ct Sapphire (Round, Blue, 4.75 x 4.75)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 0.1ct Diamond (Round, White, 3.02 x 3.02)
- 0.12ct Sapphire (Round, Blue, 2.95 x 2.95) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
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.