Star Sapphire

Add one script tag to your page:

<div data-gemfyi="entity" data-slug="star-sapphire"></div>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>

Embed as an iframe:

<iframe src="https://gemfyi.com/iframe/entity/star-sapphire/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>

Paste the URL in WordPress, Medium, or Ghost:

https://gemfyi.com/pt/gems/star-sapphire/

Shields.io-compatible SVG badge:

Star Sapphire badge ![Star Sapphire](https://gemfyi.com/badge/entity/star-sapphire.svg)

Web Component:

<gemfyi-entity slug="star-sapphire"></gemfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/gemfyi-embed@1/dist/embed.min.js" defer></script>

Physical & Optical Properties

Category Precious Gems
Mohs Hardness 9,0
Specific Gravity 3,9 – 4,05
Refractive Index 1,758 – 1,78
Crystal System Trigonal
Color blue
Birefringence 0,007

Mohs Hardness

1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond Star Sapphire
Mohs hardness of Star Sapphire shown against the ten reference minerals, from talc (1) to diamond (10).
Mohs Reference mineral Star Sapphire
1 Talc
2 Gypsum
3 Calcite
4 Fluorite
5 Apatite
6 Orthoclase
7 Quartz
8 Topaz
9 Corundum
10 Diamond

Crystal System

a a a Trigonal (Rhombohedral) a = b = c, α = β = γ ≠ 90°

Value & Market

Price Tier Investment ($5,000+/ct)

About Star Sapphire

A safira estrela é um corundo que exibe um asterismo de quatro ou seis raios, causado por inclusões sedosas de rutilo ou hematite orientadas simetricamente e visíveis sob luz focada. As melhores safiras estrela provêm do Sri Lanka, Myanmar e Tailândia, com a famosa Estrela da Índia (563 quilates) exposta no Museu Americano de História Natural a ser um dos exemplares mais conhecidos. A combinação de uma boa cor azul, uma estrela nítida e translucidez razoável é rara e muito valorizada.

On this page

Jewelry Use

Durability 10/10

Suitable for daily wear

Science FYI Family

Frequently Asked Questions

What is Star Sapphire?
A safira estrela é um corundo que exibe um asterismo de quatro ou seis raios, causado por inclusões sedosas de rutilo ou hematite orientadas simetricamente e visíveis sob luz focada. As melhores safiras estrela provêm do Sri Lanka, Myanmar e Tailândia, com a famosa Estrela da Índia (563 quilates) ex
What is the hardness of Star Sapphire?
Star Sapphire has a Mohs hardness of 9.0, making it excellent for use in jewelry.
What color is Star Sapphire?
Star Sapphire is primarily Blue.
How much does Star Sapphire cost?
Star Sapphire falls into the Investment ($5,000+/ct) price range. Prices vary based on color, clarity, cut, and origin.
What is the crystal system of Star Sapphire?
Star Sapphire belongs to the Trigonal crystal system.

More Precious Gems Gems