4ct Amethyst (Marquise, 17.98×8.99mm, Violet) vs 4ct Amethyst (Princess, 9.79×9.79mm, Violet)
Quick summary: When looked from above (face-up position), 4ct Amethyst (17.98×8.99mm, marquise cut) appears 20% larger than 4ct Amethyst (9.79×9.79mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 4ct Amethyst (marquise cut) |
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4ct Amethyst (princess cut) |
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| 17.98×8.99 mm | 9.79×9.79 mm | |
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Actual sizes of
4ct Amethyst Marquise (17.98×8.99mm, Violet)
and
4ct Amethyst Princess (9.79×9.79mm, Violet)
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.
| 4 Ct Amethyst (Marquise) | 4 Ct Amethyst (Princess) | |
| 17.98×8.99 mm | vs | 9.79×9.79 mm |
| 114.76 mm² | 95.84 mm² |
| 4ct Amethyst Marquise (17.98×8.99mm) | |
| 4ct Amethyst Princess (9.79×9.79mm) | |
| Difference: 20% (18.92 mm²) |
4ct Amethyst Marquise (17.98×8.99mm) has approx. 20% more face-up area than 4ct Amethyst Princess (9.79×9.79mm).
Popular comparisons:
- 1ct Amethyst (Marquise, Violet, 11.32 x 5.66) vs. 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26)
- 1ct Amethyst (Marquise, Dark Violet, 11.32 x 5.66) vs. 1ct Tanzanite (Emerald, Blue, 6.8 x 5.04)
- 1.7ct Amethyst (Marquise, Violet, 13.52 x 6.76) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 10.55ct Amethyst (Marquise, Violet, 24.84 x 12.42) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Amethyst (Marquise, Violet, 16.32 x 8.16) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Amethyst (Marquise, Violet, 11.32 x 5.66) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.5ct Amethyst (Marquise, Violet, 8.98 x 4.49) vs. 0.06ct Diamond (Baguette, White, 2.84 x 1.89)
- 1.52ct Amethyst (Marquise, Violet, 13.02 x 6.51) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
Enter your screen size (diagonal)
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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.