1.05ct Diamond (Round, 6.61×6.61mm, White) vs 1.6ct Tanzanite (Cushion, 6.97×6.97mm, Blue)
Quick summary: When looked from above (face-up position), 1.6ct Tanzanite (6.97×6.97mm, cushion cut) appears 27% larger than 1.05ct Diamond (6.61×6.61mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1.05ct Diamond (round cut) |
vs
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1.6ct Tanzanite (cushion cut) |
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white |
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| 6.61×6.61 mm | 6.97×6.97 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
1.05ct Diamond Round (6.61×6.61mm, White)
and
1.6ct Tanzanite Cushion (6.97×6.97mm, 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, Diamond will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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.
| 1.05 Ct Diamond (Round) | 1.6 Ct Tanzanite (Cushion) | |
| 6.61×6.61 mm | vs | 6.97×6.97 mm |
| 34.32 mm² | 43.72 mm² |
| 1.05ct Diamond Round (6.61×6.61mm) | |
| 1.6ct Tanzanite Cushion (6.97×6.97mm) | |
| Difference: 27% (9.4 mm²) |
1.6ct Tanzanite (Cushion, 6.97×6.97mm) has approx. 27% more face-up area than 1.05ct Diamond (Round, 6.61×6.61mm).
Popular comparisons:
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 1.35ct Sapphire (Round, Dark Bluish Green, 6.61 x 6.61)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 1.56ct Diamond (Round, White, 7.54 x 7.54)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 0.35ct Diamond (Round, White, 4.58 x 4.58)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 0.54ct Diamond (Round, White, 5.29 x 5.29)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 0.6ct Sapphire (Oval, Blue, 6.38 x 4.25)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 1.05ct Sapphire (Round, Dark Bluish Green, 6.05 x 6.02)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 10.86ct Diamond (Round, White, 14.39 x 14.39)
- 1.05ct Diamond (Round, White, 6.61 x 6.61) vs. 0.37ct Diamond (Round, White, 4.67 x 4.67)