4ct Tourmaline (Oval, 13.07×8.71mm, Violet) vs 3.5ct Tourmaline (Oval, 12.5×8.33mm, Violet)
Quick summary: When looked from above (face-up position), 4ct Tourmaline (13.07×8.71mm, oval cut) appears 9% larger than 3.5ct Tourmaline (12.5×8.33mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 4ct Tourmaline (oval cut) |
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3.5ct Tourmaline (oval cut) |
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| 13.07×8.71 mm | 12.5×8.33 mm | |
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Actual sizes of
4ct Tourmaline Oval (13.07×8.71mm, Violet)
and
3.5ct Tourmaline Oval (12.5×8.33mm, 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 Tourmaline (Oval) | 3.5 Ct Tourmaline (Oval) | |
| 13.07×8.71 mm | vs | 12.5×8.33 mm |
| 93.35 mm² | 85.38 mm² |
| 4ct Tourmaline Oval (13.07×8.71mm) | |
| 3.5ct Tourmaline Oval (12.5×8.33mm) | |
| Difference: 9% (7.97 mm²) |
4ct Tourmaline Oval (13.07×8.71mm) has approx. 9% more face-up area than 3.5ct Tourmaline Oval (12.5×8.33mm).
Popular comparisons:
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 2ct Emerald (Round, Green, 8.59 x 8.59)
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 12ct Topaz (Oval, Blue, 18.06 x 12.04)
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 5ct Tourmaline (Oval, Violet, 14.09 x 9.39)
- 4ct Tourmaline (Oval, Violet, 13.07 x 8.71) vs. 3ct Tourmaline (Oval, Violet, 11.88 x 7.92)
- 5.8ct Tourmaline (Oval, Violet, 14.79 x 9.86) vs. 8ct Sapphire (Oval, Blue, 15.12 x 10.08)
- 14ct Tourmaline (Oval, Light Purple, 19.85 x 14) vs. 14ct Kunzite (Oval, Light Purple, 19.68 x 14)
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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.