5.5ct Sapphire (Round, 10.55×10.55mm, Blue) vs 5.5ct Topaz (Round, 11×11mm, Blue)
Quick summary: When looked from above (face-up position), 5.5ct Topaz (11×11mm, round cut) appears 9% larger than 5.5ct Sapphire (10.55×10.55mm, round cut). See below how they compare side-by-side on a ring and finger.
| 5.5ct Sapphire (round cut) |
vs
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5.5ct Topaz (round cut) |
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blue |
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| 10.55×10.55 mm | 11×11 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
5.5ct Sapphire Round (10.55×10.55mm, Blue)
and
5.5ct Topaz Round (11×11mm, Blue)
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.
| 5.5 Ct Sapphire (Round) | 5.5 Ct Topaz (Round) | |
| 10.55×10.55 mm | vs | 11×11 mm |
| 87.42 mm² | 95.03 mm² |
| 5.5ct Sapphire Round (10.55×10.55mm) | |
| 5.5ct Topaz Round (11×11mm) | |
| Difference: 9% (7.61 mm²) |
5.5ct Topaz (Round, 11×11mm) has approx. 9% more face-up area than 5.5ct Sapphire (Round, 10.55×10.55mm).
Popular comparisons:
- 5.5ct Sapphire (Round, Blue, 10.55 x 10.55) vs. 2ct Ruby (Round, Red, 7.53 x 7.53)
- 5.5ct Sapphire (Round, Blue, 10.55 x 10.55) vs. 5.5ct Sapphire (Cushion, Blue, 9.87 x 9.87)
- 5.5ct Sapphire (Round, Blue, 10.55 x 10.55) vs. 2ct Ruby (Cushion, Red, 7.04 x 7.04)
- 5.5ct Sapphire (Round, Blue, 10.55 x 10.55) vs. 5.5ct Diamond (Round, White, 11.47 x 11.47)
- 1ct Sapphire (Round, Blue, 5.98 x 5.98) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Sapphire (Round, Blue, 7.53 x 7.53) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Sapphire (Round, Blue, 6.5 x 6.5) vs. 1ct Sapphire (Cushion, Blue, 6 x 6)
- 5.55ct Sapphire (Round, Blue, 10.58 x 10.58) vs. 9ct Sapphire (Cushion, Blue, 11.63 x 11.63)
- 1ct Sapphire (Round, Blue, 5.98 x 5.98) vs. 1ct Diamond (Round, White, 6.5 x 6.5)