4ct Tanzanite (Trillion, 11.9×11.9mm, Blue) vs 4ct Tanzanite (Round, 10.12×10.12mm, Blue)
Quick summary: When looked from above (face-up position), 4ct Tanzanite (11.9×11.9mm, trillion cut) appears 9% larger than 4ct Tanzanite (10.12×10.12mm, round cut). See below how they compare side-by-side on a ring and finger.
| 4ct Tanzanite (trillion cut) |
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4ct Tanzanite (round cut) |
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| 11.9×11.9 mm | 10.12×10.12 mm | |
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Actual sizes of
4ct Tanzanite Trillion (11.9×11.9mm, Blue)
and
4ct Tanzanite Round (10.12×10.12mm, 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
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 Tanzanite (Trillion) | 4 Ct Tanzanite (Round) | |
| 11.9×11.9 mm | vs | 10.12×10.12 mm |
| 87.8 mm² | 80.44 mm² |
| 4ct Tanzanite Trillion (11.9×11.9mm) | |
| 4ct Tanzanite Round (10.12×10.12mm) | |
| Difference: 9% (7.36 mm²) |
4ct Tanzanite Trillion (11.9×11.9mm) has approx. 9% more face-up area than 4ct Tanzanite Round (10.12×10.12mm).
Popular comparisons:
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 4ct Tanzanite (Marquise, Blue, 16.7 x 8.35)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 4ct Tanzanite (Cushion, Blue, 9.46 x 9.46)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 2.55ct Sapphire (Cushion, Blue, 7.64 x 7.64)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 4ct Tanzanite (Emerald, Blue, 10.81 x 8.01)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 4ct Tanzanite (Oval, Blue, 12.8 x 8.53)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 3.14ct Tanzanite (Oval, Blue, 11.81 x 7.87)
- 4ct Tanzanite (Trillion, Blue, 11.9 x 11.9) vs. 4ct Alexandrite (Trillion, Bluish Green, 11.45 x 11.45)
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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.