4ct Benitoite (Pear, 13.91×8.38mm, Blue) vs 4ct Tanzanite (Pear, 14.33×8.63mm, Blue)
Quick summary: When looked from above (face-up position), 4ct Tanzanite (14.33×8.63mm, pear cut) appears 6% larger than 4ct Benitoite (13.91×8.38mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 4ct Benitoite (pear cut) |
vs
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4ct Tanzanite (pear cut) |
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blue |
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| 13.91×8.38 mm | 14.33×8.63 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
4ct Benitoite Pear (13.91×8.38mm, Blue)
and
4ct Tanzanite Pear (14.33×8.63mm, 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
All things being equal, Benitoite will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.65 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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 Ct Benitoite (Pear) | 4 Ct Tanzanite (Pear) | |
| 13.91×8.38 mm | vs | 14.33×8.63 mm |
| 85.09 mm² | 90.28 mm² |
| 4ct Benitoite Pear (13.91×8.38mm) | |
| 4ct Tanzanite Pear (14.33×8.63mm) | |
| Difference: 6% (5.19 mm²) |
4ct Tanzanite (Pear, 14.33×8.63mm) has approx. 6% more face-up area than 4ct Benitoite (Pear, 13.91×8.38mm).
Popular comparisons:
- 2ct Benitoite (Pear, Blue, 10.79 x 6.5) vs. 4ct Sapphire (Princess, Blue, 8.53 x 8.53)
- 1.15ct Benitoite (Pear, Dark Blue, 8.96 x 5.4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Benitoite (Pear, Blue, 14.64 x 8.82) vs. 5ct Kyanite (Pear, Blue, 14.61 x 8.8)
- 1ct Benitoite (Pear, Blue, 7 x 7) vs. 1ct Diamond (Round, Light Gray, 6.5 x 6.5)
- 8ct Benitoite (Pear, Blue, 17.13 x 10.32) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1.15ct Benitoite (Pear, Light Blue, 8.96 x 5.4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Benitoite (Pear, Blue, 14.64 x 8.82) vs. 5ct Kyanite (Marquise, Blue, 17.36 x 8.68)
- 4ct Benitoite (Pear, Blue, 13.6 x 8.19) vs. 4ct Kyanite (Pear, Blue, 13.56 x 8.17)
- 6ct Benitoite (Pear, Blue, 15.55 x 9.37) vs. 6ct Kyanite (Pear, Blue, 15.52 x 9.35)