4ct Emerald (Cabochon, 12.39×8.26mm, Green) vs 0.5ct Diamond (Emerald, 5.31×3.93mm, White)
Quick summary: When looked from above (face-up position), 4ct Emerald (12.39×8.26mm, cabochon cut) appears 4.3 times larger than 0.5ct Diamond (5.31×3.93mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 4ct Emerald (cabochon cut) |
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0.5ct Diamond (emerald cut) |
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| 12.39×8.26 mm | 5.31×3.93 mm | |
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Actual sizes of
4ct Emerald Cabochon (12.39×8.26mm, Green)
and
0.5ct Diamond Emerald (5.31×3.93mm, 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, Diamond will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(3.52 vs. 2.7 - this means it's "heavier" compared to Emerald 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.
| 4 Ct Emerald (Cabochon) | 0.5 Ct Diamond (Emerald) | |
| 12.39×8.26 mm | vs | 5.31×3.93 mm |
| 83.92 mm² | 19.41 mm² |
| 4ct Emerald Cabochon (12.39×8.26mm) | |
| 0.5ct Diamond Emerald (5.31×3.93mm) | |
| Difference: 332% (64.51 mm²) |
4ct Emerald Cabochon (12.39×8.26mm) has approx. 332% more face-up area than 0.5ct Diamond Emerald (5.31×3.93mm). In other words, it's 4.32x larger.
Popular comparisons:
- 4ct Emerald (Cabochon, Green, 12.39 x 8.26) vs. 4ct Emerald (Pear, Green, 15.02 x 9.05)
- 5ct Emerald (Cabochon, Green, 10 x 10) vs. 5ct Diamond (Cabochon, White, 12.21 x 8.14)
- 34ct Emerald (Cabochon, Green, 25.28 x 16.85) vs. 20ct Diamond (Round, White, 17.64 x 17.64)
- 1ct Emerald (Cabochon, Green, 8.2 x 6) vs. 1ct Emerald (Oval, Green, 8.63 x 5.75)
- 19.2ct Emerald (Cabochon, Dark Green, 20.9 x 13.93) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Emerald (Cabochon, Green, 10 x 10) vs. 5ct Diamond (Cabochon, White, 10 x 10)
- 5ct Emerald (Cabochon, Green, 13.34 x 8.89) vs. 6.7ct Sapphire (Cabochon, Blue, 12.9 x 8.6)
- 4.5ct Emerald (Cabochon, Green, 12.89 x 8.59) vs. 20ct Kunzite (Cushion, Light Purple, 16.38 x 16.38)
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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.