4 Carat Morganite (Round, 10.69mm, Light Purple)

Color:

light purple

actual size

Actual size is set for screen

How big is a 4 carat round-cut Morganite?

It depends on the cut proportions, but typically a 4ct round-cut Morganite would measure around 10.69 mm (±4%) in diameter. You can check the finger coverage in the simulator below.

Ring:

Gold
Platinum

Skin tone:

Pale
Light
Medium
Dark

Ring width: 3.0 mm

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64 mm

Your settings
Ring	Gold
Skin tone	Light
Ring diameter	16.9 mm
Ring width	3.0 mm
Finger length	64 mm
Finger coverage	64 %

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Ring diameter: 16.9 mm

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Additional Info

Morganite, also known as "pink Emerald", is a light pink variety of Beryl. It was named after J.P. Morgan, the famous financier, banker, and gem collector. In order to improve its color, it's quite common for Morganite to be heat treated.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Gem Details

Name:	Morganite
Mineral Group:	Beryl
Shape:	Round
Chemical Formula:	Be₃Al₂Si₆O₁₈
Crystal Structure:	Hexagonal
Hardness:	7.5 - 8.0
Specific Gravity	2.8
Carat weight:	4 ct
Gram weight:	0.8 g (0.0282 ounces)
Points:	400 pts
Length:	10.69 mm
Width:	10.69 mm
Average diameter:	10.69 mm
Est. face-up size:	89.75 mm²
Volume:	285.71 mm³
Length-to-width ratio:	1
Refractive Index:	1.57-1.58
Luster:	Vitreous
Wearability:	Excellent
Care Instructions:	No special care
Color:	Morganite can be found in the following colors:
Birthstone:	Morganite is not an official birthstone of any month

Popular comparisons:

About Morganite Specific Gravity

Morganite has a specific gravity of approximately 2.71 - 2.90, with 2.8 being a generally accepted standard average for gem-quality material.

For all the Morganite size calculations on this website, the specific gravity of 2.8 is used.

To learn more about it and why it matters, and to compare densities of all the gemstones on one page, click here.

Ring & Finger Simulator

Use the simulator on this page to play around with different ring and finger configurations.

To select a different gemstone, shape, color or size, or to compare two gems side-by-side, use the form at the top of the page. Comparison example: 4ct Morganite vs Moissanite

If you want to compare round-cut Morganite sizes from 0.25 to 40ct on one page, see Morganite Size Chart

In order to view real-world sizes on your screen, ensure that the actual size is set to your device screen size (diagonal in inches).