0.25ct Sapphire (Pear, 5.23×3.15mm, Blue) vs 1ct Topaz (Emerald, 6.66×4.93mm, White)
Quick summary: When looked from above (face-up position), 1ct Topaz (6.66×4.93mm, emerald cut) appears 2.5 times larger than 0.25ct Sapphire (5.23×3.15mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 0.25ct Sapphire (pear cut) |
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1ct Topaz (emerald cut) |
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blue |
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| 5.23×3.15 mm | 6.66×4.93 mm | |
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Actual sizes of
0.25ct Sapphire Pear (5.23×3.15mm, Blue)
and
1ct Topaz Emerald (6.66×4.93mm, 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, Sapphire will face-up smaller than Topaz for a given
carat weight, because it has higher specific gravity
(4 vs. 3.53 - this means it's "heavier" compared to Topaz 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.
| 0.25 Ct Sapphire (Pear) | 1 Ct Topaz (Emerald) | |
| 5.23×3.15 mm | vs | 6.66×4.93 mm |
| 12.03 mm² | 30.54 mm² |
| 0.25ct Sapphire Pear (5.23×3.15mm) | |
| 1ct Topaz Emerald (6.66×4.93mm) | |
| Difference: 154% (18.51 mm²) |
1ct Topaz Emerald (6.66×4.93mm) has approx. 154% more face-up area than 0.25ct Sapphire Pear (5.23×3.15mm). In other words, it's 2.54x larger.
Popular comparisons:
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 0.26ct Topaz (Emerald, White, 4.25 x 3.15)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 1.2ct Diamond (Round, White, 6.91 x 6.91)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 0.25ct Amethyst (Pear, Violet, 6.01 x 3.62)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 1ct Diamond (Pear, White, 9.05 x 5.45)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 0.5ct Sapphire (Round, Blue, 4.75 x 4.75)
- 0.25ct Sapphire (Pear, Blue, 5.23 x 3.15) vs. 0.25ct Sapphire (Round, Blue, 3.77 x 3.77)
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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.