20 Ct Sapphire (Baguette) |
vs
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1 Ct Peridot (Oval) |
blue |
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18.81×12.54 mm | 8.03×5.35 mm | |
actual size | ||
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64 mm |
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Actual sizes of
20ct Sapphire Baguette (18.81×12.54mm, Blue)
and
1ct Peridot Oval (8.03×5.35mm, Yellowish 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?
JamesAllen → high-quality blue Sapphires, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.
Face-up Size
All things being equal, Sapphire will face-up smaller than Peridot for a given
carat weight, because it has higher specific gravity
(4 vs. 3.35 - this means it's "heavier" compared to Peridot 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.
20 Ct Sapphire (Baguette) | 1 Ct Peridot (Oval) | |
18.81×12.54 mm | vs | 8.03×5.35 mm |
235.88 mm² | 35.23 mm² |


20ct Sapphire Baguette (18.81×12.54mm) | |
1ct Peridot Oval (8.03×5.35mm) | |
Difference: 570% (200.65 mm²) |
20ct Sapphire Baguette (18.81×12.54mm) has approx. 570% more face-up area than 1ct Peridot Oval (8.03×5.35mm).
Popular comparisons:
- 20ct Sapphire (Baguette, Blue, 18.81 x 12.54) vs. 10ct Emerald (Marquise, Green, 24.24 x 12.12)
- 20ct Sapphire (Baguette, Blue, 18.81 x 12.54) vs. 20ct Peridot (Oval, Yellowish Green, 21.78 x 14.52)
- 20ct Sapphire (Baguette, Blue, 18.81 x 12.54) vs. 18ct Peridot (Oval, Yellowish Green, 21.03 x 14.02)
- 20ct Sapphire (Baguette, Blue, 18.81 x 12.54) vs. 15ct Peridot (Oval, Yellowish Green, 19.79 x 13.19)
- 1ct Sapphire (Baguette, Blue, 6.93 x 4.62) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.15ct Sapphire (Baguette, Blue, 3.68 x 2.45) vs. 3.05ct Diamond (Emerald, White, 9.69 x 7.18)
- 0.15ct Sapphire (Baguette, Blue, 3.68 x 2.45) vs. 0.15ct Diamond (Emerald, White, 3.55 x 2.63)
- 2ct Sapphire (Baguette, Blue, 8.73 x 5.82) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 8ct Sapphire (Baguette, Blue, 13.86 x 9.24) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
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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.