2.5ct Spinel (Oval, 10.64×7.09mm, Red) vs 2ct Topaz (Oval, 9.93×6.62mm, Blue)
Quick summary: When looked from above (face-up position), 2.5ct Spinel (10.64×7.09mm, oval cut) appears 15% larger than 2ct Topaz (9.93×6.62mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Spinel (oval cut) |
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2ct Topaz (oval cut) |
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red |
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| 10.64×7.09 mm | 9.93×6.62 mm | |
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Actual sizes of
2.5ct Spinel Oval (10.64×7.09mm, Red)
and
2ct Topaz Oval (9.93×6.62mm, 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, Spinel will face-up slightly smaller than Topaz for a given
carat weight, because it has higher specific gravity
(3.6 vs. 3.53 - this means it's "slightly 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.
| 2.5 Ct Spinel (Oval) | 2 Ct Topaz (Oval) | |
| 10.64×7.09 mm | vs | 9.93×6.62 mm |
| 61.86 mm² | 53.9 mm² |
| 2.5ct Spinel Oval (10.64×7.09mm) | |
| 2ct Topaz Oval (9.93×6.62mm) | |
| Difference: 15% (7.96 mm²) |
2.5ct Spinel Oval (10.64×7.09mm) has approx. 15% more face-up area than 2ct Topaz Oval (9.93×6.62mm).
Popular comparisons:
- 2.5ct Spinel (Oval, Red, 10.64 x 7.09) vs. 0.95ct Spinel (Emerald, Red, 6.51 x 4.82)
- 1ct Spinel (Oval, Light Blue, 7.83 x 5.22) vs. 1ct Topaz (Oval, Gray, 7.89 x 5.26)
- 1.21ct Spinel (Oval, Red, 8 x 6) vs. 0.5ct Emerald (Trillion, Green, 6.36 x 6.36)
- 3.12ct Spinel (Oval, Purple, 10 x 8) vs. 3ct Spinel (Cushion, Light Purple, 11 x 8)
- 3ct Spinel (Oval, Light Violet, 11 x 7.53) vs. 3ct Spinel (Cushion, Light Violet, 10 x 8)
- 3.12ct Spinel (Oval, Red, 10 x 8) vs. 3ct Spinel (Cushion, Light Purple, 11 x 8)
- 2.48ct Spinel (Oval, Light Purple, 9.2 x 7.2) vs. 3ct Spinel (Round, Light Purple, 8.93 x 8.93)
- 3ct Spinel (Oval, Light Purple, 11.3 x 7.53) vs. 4ct Sapphire (Cushion, Light Purple, 11 x 9)
Enter your screen size (diagonal)
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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.