3ct Sapphire (Baguette, 9.99×6.66mm, Blue) vs 1ct Diamond (Round, 6.5×6.5mm, White)
Quick summary: When looked from above (face-up position), 3ct Sapphire (9.99×6.66mm, baguette cut) appears 2 times larger than 1ct Diamond (6.5×6.5mm, round cut). See below how they compare side-by-side on a ring and finger.
| 3ct Sapphire (baguette cut) |
vs
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1ct Diamond (round cut) |
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blue |
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| 9.99×6.66 mm | 6.5×6.5 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
3ct Sapphire Baguette (9.99×6.66mm, Blue)
and
1ct Diamond Round (6.5×6.5mm, 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 Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 3 Ct Sapphire (Baguette) | 1 Ct Diamond (Round) | |
| 9.99×6.66 mm | vs | 6.5×6.5 mm |
| 66.53 mm² | 33.18 mm² |
| 3ct Sapphire Baguette (9.99×6.66mm) | |
| 1ct Diamond Round (6.5×6.5mm) | |
| Difference: 101% (33.35 mm²) |
3ct Sapphire (Baguette, 9.99×6.66mm) has approx. 101% more face-up area than 1ct Diamond (Round, 6.5×6.5mm). In other words, it's 2.01x larger.
Popular comparisons:
- 3ct Sapphire (Baguette, Blue, 9.99 x 6.66) vs. 5ct Ruby (Baguette, Red, 11.85 x 7.9)
- 3ct Sapphire (Baguette, Blue, 9.99 x 6.66) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 20ct Sapphire (Baguette, Blue, 18.81 x 12.54) vs. 1ct Peridot (Oval, Yellowish Green, 8.03 x 5.35)
- 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)
- 2.3ct Sapphire (Baguette, Dark Blue, 9.15 x 6.1) vs. 2.3ct Sapphire (Emerald, Dark Blue, 8.42 x 6.24)