3ct Sapphire (Princess, 7.75×7.75mm, Blue) vs 2ct Ruby (Princess, 6.77×6.77mm, Red)
Quick summary: When looked from above (face-up position), 3ct Sapphire (7.75×7.75mm, princess cut) appears 31% larger than 2ct Ruby (6.77×6.77mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 3ct Sapphire (princess cut) |
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2ct Ruby (princess cut) |
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blue |
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| 7.75×7.75 mm | 6.77×6.77 mm | |
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Actual sizes of
3ct Sapphire Princess (7.75×7.75mm, Blue)
and
2ct Ruby Princess (6.77×6.77mm, Red)
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
Sapphire and Ruby have the same specific gravity so their face-up size
depends on the weight, shape and 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.
| 3 Ct Sapphire (Princess) | 2 Ct Ruby (Princess) | |
| 7.75×7.75 mm | vs | 6.77×6.77 mm |
| 60.06 mm² | 45.83 mm² |
| 3ct Sapphire Princess (7.75×7.75mm) | |
| 2ct Ruby Princess (6.77×6.77mm) | |
| Difference: 31% (14.23 mm²) |
3ct Sapphire Princess (7.75×7.75mm) has approx. 31% more face-up area than 2ct Ruby Princess (6.77×6.77mm).
Popular comparisons:
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 3ct Diamond (Princess, White, 7.95 x 7.95)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 2.7ct Diamond (Round, White, 9.05 x 9.05)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 6ct Emerald (Baguette, Green, 14.36 x 9.57)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 3ct Emerald (Princess, Green, 8.84 x 8.84)
- 3ct Sapphire (Princess, Blue, 7.75 x 7.75) vs. 0.25ct Diamond (Baguette, White, 4.56 x 3.04)
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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.