4.5ct Emerald (Cabochon, 12.89×8.59mm, Green) vs 20ct Kunzite (Cushion, 16.38×16.38mm, Light Purple)
Quick summary: When looked from above (face-up position), 20ct Kunzite (16.38×16.38mm, cushion cut) appears 2.7 times larger than 4.5ct Emerald (12.89×8.59mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 4.5ct Emerald (cabochon cut) |
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20ct Kunzite (cushion cut) |
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green |
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| 12.89×8.59 mm | 16.38×16.38 mm | |
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Actual sizes of
4.5ct Emerald Cabochon (12.89×8.59mm, Green)
and
20ct Kunzite Cushion (16.38×16.38mm, Light Purple)
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, Kunzite will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(3.18 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.
| 4.5 Ct Emerald (Cabochon) | 20 Ct Kunzite (Cushion) | |
| 12.89×8.59 mm | vs | 16.38×16.38 mm |
| 90.79 mm² | 241.47 mm² |
| 4.5ct Emerald Cabochon (12.89×8.59mm) | |
| 20ct Kunzite Cushion (16.38×16.38mm) | |
| Difference: 166% (150.68 mm²) |
20ct Kunzite Cushion (16.38×16.38mm) has approx. 166% more face-up area than 4.5ct Emerald Cabochon (12.89×8.59mm). In other words, it's 2.66x larger.
Popular comparisons:
- 4.5ct Emerald (Cabochon, Green, 12.89 x 8.59) vs. 19ct Kunzite (Cushion, Light Purple, 16.11 x 16.11)
- 4.5ct Emerald (Cabochon, Green, 12.89 x 8.59) vs. 34ct Kunzite (Cushion, Light Purple, 19.55 x 19.55)
- 4.5ct Emerald (Cabochon, Green, 12.89 x 8.59) vs. 33ct Kunzite (Cushion, Light Purple, 19.36 x 19.36)
- 4.5ct Emerald (Cabochon, Green, 12.89 x 8.59) vs. 22ct Kunzite (Cushion, Light Purple, 16.91 x 16.91)
- 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)
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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.