0.3ct Diamond (Trillion, 5.18×5.18mm, White) vs 0.4ct Diamond (Round, 4.79×4.79mm, White)
Quick summary: When looked from above (face-up position), 0.4ct Diamond (4.79×4.79mm, round cut) appears 8% larger than 0.3ct Diamond (5.18×5.18mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 0.3ct Diamond (trillion cut) |
vs
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0.4ct Diamond (round cut) |
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white |
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| 5.18×5.18 mm | 4.79×4.79 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
0.3ct Diamond Trillion (5.18×5.18mm, White)
and
0.4ct Diamond Round (4.79×4.79mm, 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
The face-up size depends on the shape of the gem, its weight and 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.
| 0.3 Ct Diamond (Trillion) | 0.4 Ct Diamond (Round) | |
| 5.18×5.18 mm | vs | 4.79×4.79 mm |
| 16.64 mm² | 18.02 mm² |
| 0.3ct Diamond Trillion (5.18×5.18mm) | |
| 0.4ct Diamond Round (4.79×4.79mm) | |
| Difference: 8% (1.38 mm²) |
0.4ct Diamond (Round, 4.79×4.79mm) has approx. 8% more face-up area than 0.3ct Diamond (Trillion, 5.18×5.18mm).
Popular comparisons:
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.3ct Diamond (Round, White, 4.35 x 4.35)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.37ct Diamond (Trillion, White, 5.55 x 5.55)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.5ct Diamond (Trillion, White, 6.14 x 6.14)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 3ct Sapphire (Cushion, Dark Bluish Green, 8.06 x 8.06)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.05ct Diamond (Round, White, 2.39 x 2.39)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.25ct Diamond (Trillion, White, 4.87 x 4.87)
- 0.5ct Diamond (Trillion, White, 6.14 x 6.14) vs. 0.25ct Diamond (Trillion, White, 4.87 x 4.87)