4.2ct Diamond (Cushion, 9.4×9.4mm, White) vs 4.2ct Zircon (Cushion, 8.58×8.58mm, Orange)
Quick summary: When looked from above (face-up position), 4.2ct Diamond (9.4×9.4mm, cushion cut) appears 20% larger than 4.2ct Zircon (8.58×8.58mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 4.2ct Diamond (cushion cut) |
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4.2ct Zircon (cushion cut) |
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white |
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| 9.4×9.4 mm | 8.58×8.58 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
4.2ct Diamond Cushion (9.4×9.4mm, White)
and
4.2ct Zircon Cushion (8.58×8.58mm, Orange)
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, Zircon will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4.7 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.
| 4.2 Ct Diamond (Cushion) | 4.2 Ct Zircon (Cushion) | |
| 9.4×9.4 mm | vs | 8.58×8.58 mm |
| 79.52 mm² | 66.25 mm² |
| 4.2ct Diamond Cushion (9.4×9.4mm) | |
| 4.2ct Zircon Cushion (8.58×8.58mm) | |
| Difference: 20% (13.27 mm²) |
4.2ct Diamond (Cushion, 9.4×9.4mm) has approx. 20% more face-up area than 4.2ct Zircon (Cushion, 8.58×8.58mm).
Popular comparisons:
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 3.3ct Diamond (Cushion, White, 8.67 x 8.67)
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 4.02ct Diamond (Round, White, 10 x 10)
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 4ct Diamond (Round, White, 10 x 10)
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 1ct Tanzanite (Round, Light Blue, 6.37 x 6.37)
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4.2ct Diamond (Cushion, White, 9.4 x 9.4) vs. 4ct Diamond (Oval, White, 12.89 x 8.59)
- 2ct Diamond (Cushion, White, 7.34 x 7.34) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Diamond (Cushion, White, 5.8 x 5.8) vs. 1.03ct Diamond (Round, White, 6.56 x 6.56)