25ct Topaz (Cabochon, 20.87×13.91mm, Orange) vs 1ct Emerald (Emerald, 7.28×5.39mm, Green)
Quick summary: When looked from above (face-up position), 25ct Topaz (20.87×13.91mm, cabochon cut) appears 6.5 times larger than 1ct Emerald (7.28×5.39mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 25ct Topaz (cabochon cut) |
vs
|
1ct Emerald (emerald cut) |
|
orange |
|
|
| 20.87×13.91 mm | 7.28×5.39 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
25ct Topaz Cabochon (20.87×13.91mm, Orange)
and
1ct Emerald Emerald (7.28×5.39mm, Green)
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, Topaz will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(3.53 vs. 2.72 - 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.
| 25 Ct Topaz (Cabochon) | 1 Ct Emerald (Emerald) | |
| 20.87×13.91 mm | vs | 7.28×5.39 mm |
| 238.05 mm² | 36.49 mm² |
| 25ct Topaz Cabochon (20.87×13.91mm) | |
| 1ct Emerald Emerald (7.28×5.39mm) | |
| Difference: 552% (201.56 mm²) |
25ct Topaz (Cabochon, 20.87×13.91mm) has approx. 552% more face-up area than 1ct Emerald (Emerald, 7.28×5.39mm). In other words, it's 6.52x larger.
Popular comparisons:
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 1ct Tanzanite (Cabochon, Blue, 7.29 x 4.86)
- 1ct Topaz (Cabochon, Light Bluish Green, 5 x 7) vs. 1ct Tourmaline (Cabochon, Yellowish Green, 6 x 6)
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 0.5ct Topaz (Round, Blue, 5 x 5)
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Topaz (Cabochon, Light Bluish Green, 7.14 x 4.76) vs. 1ct Peridot (Cushion, Green, 6.5 x 4.5)
- 7.5ct Topaz (Cabochon, White, 13.97 x 9.31) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4.98ct Topaz (Cabochon, Blue, 12.18 x 8.12) vs. 4.13ct Topaz (Cabochon, Blue, 11.45 x 7.63)
- 1ct Topaz (Cabochon, Blue, 7.14 x 4.76) vs. 1ct Topaz (Princess, Bluish Green, 6 x 6)