6ct Sapphire (Round, 10.86×10.86mm, Blue) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 6ct Sapphire (10.86×10.86mm, round cut) appears 76% larger than 2ct Diamond (8.19×8.19mm, round cut). See below how they compare side-by-side on a ring and finger.
| 6ct Sapphire (round cut) |
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2ct Diamond (round cut) |
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blue |
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| 10.86×10.86 mm | 8.19×8.19 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
6ct Sapphire Round (10.86×10.86mm, Blue)
and
2ct Diamond Round (8.19×8.19mm, 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.
| 6 Ct Sapphire (Round) | 2 Ct Diamond (Round) | |
| 10.86×10.86 mm | vs | 8.19×8.19 mm |
| 92.63 mm² | 52.68 mm² |
| 6ct Sapphire Round (10.86×10.86mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 76% (39.95 mm²) |
6ct Sapphire (Round, 10.86×10.86mm) has approx. 76% more face-up area than 2ct Diamond (Round, 8.19×8.19mm).
Popular comparisons:
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 6ct Emerald (Emerald, Green, 13.23 x 9.8)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 8ct Sapphire (Round, Blue, 11.96 x 11.96)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 6ct Emerald (Baguette, Green, 14.36 x 9.57)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 3ct Emerald (Round, Green, 9.83 x 9.83)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 6ct Sapphire (Pear, Blue, 15.09 x 9.09)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 4ct Emerald (Round, Green, 10.82 x 10.82)
- 6ct Sapphire (Round, Blue, 10.86 x 10.86) vs. 3ct Emerald (Pear, Green, 13.66 x 8.23)