What this means for the sapphire, is that it is an inherently strong gemstone, not prone to scratching, breaking, chipping, cracking, or affected by another type of abrasion. They can be polished to a bright sheen and can take the stress of everyday wear.
Ruby and sapphire sometimes are treatment with very high heat. The heat is so high that some natural inclusions inside the gem (could be other minerals) expand rapidly, more so than the host stone (the ruby or sapphire), causing the host stone to crack because of the high pressure.
Corundum (ruby and sapphire) is relatively hard—9 on the Mohs scale. It has excellent toughness and no cleavage, which is a tendency to break when struck.
Corundum (gem family of ruby and sapphire) is the second hardest gem material in the world, second only to diamond. This means sapphire can only be scratched by another sapphire or a diamond.
Sapphires are very durable, so while they do scratch and can chip, you'll probably get many years of wear. Eventually, you may notice some scratches, and you can always have your sapphire resurfaced. Sapphires come in a rainbow of colors and hues!
To identify if your "sapphire" stone is real, stay in total darkness and use a flashlight to shine a light on it. If you have a genuine sapphire, the same color as the sapphire stone should reflect back. However, if it is a fake sapphire (usually made of glass), you will see other color reflections in the crystal.
No, sapphire isn't completely indestructible
While sapphire is almost entirely scratch-proof, it's still susceptible to cracks. "Sapphire is more brittle than glass," Raymond Soneira, president of DisplayMate Technologies told Business Insider.
Protect your sapphire ring by removing it before doing household chores. If you have a pair of sapphire earrings, avoid wearing them in the pool or shower.
Sapphire is more scratch resistant than glass, but that doesn't mean that nothing can scratch it. A really sharp object will scratch it, just like a really sharp object will scratch anything.
Since Saturn comes with a lot of intense powers, the best tip to begin with is that you must never ever wear a cracked blue sapphire stone. This can anger Shani and the individual can face accidents that might even lead to death. There could also be blue sapphires that come with another latent tint.
CAN I WEAR CRACKED STONES? It is not advisable to wear jewelry with cracked stones as the stone may crack even more. Also, dust, soap, and other substances will get into the crack, which will only spoil the appearance of the stone.
Heat treating creates a permanent and stable color change in the stone as long as the stone is not exposed to an extremely high heat source. The extreme heat of a jewelers torch can cause a sapphire to crack and change color.
Diamonds are rated 10 out of 10 on the Mohs hardness scale, while sapphires are rated a nine. Unless you only plan to wear your engagement ring on special occasions, it's best to choose a stone on the high end of the Mohs hardness scale to ensure a long lifespan for your ring.
Sapphires are actually quite hard and score 9 on the Mohs hardness scale. "Second only to diamonds," Earlam-Charnley points out. This means that sapphires are suitable for everyday wear. "A sapphire should last a lifetime and can be passed down for generations."
Wearing blue sapphires with a latent tint can mean that there is an intrusion from an enemy. Blue sapphires with a milky hue can lead to problems with wealth. It can even cause the wearer extreme poverty. Once worn, the gem should not be removed on a whim.
Everyday Sparkle: Sapphire birthstone jewelry and studs
Diamonds are the only thing to surpass sapphires, meaning they're the only natural material to be able to scratch or cause damage to this gemstone. Thanks to their durability, sapphires are safe to be worn every day.
You should remove your sapphire ring to bathe or wash your hands. Store it in a safe place so it does not slip down the drain. Avoid wearing your sapphire ring when you are doing housework, gardening or participating in a sport.
Another important thing is not to expose sapphires to the sun for long periods. In fact, to prevent sapphires from losing their colour or staining their surface, they must be protected from excessive heat.
Sapphire scores a solid 9 out of 10 on the Mohs mineral hardness scale, just below diamond, making it even more scratch resistant than mineral glass.
(One reason sapphire crystals are relatively expensive is that the tools required to cut and polish this extremely hard material are very costly.) Sapphire (whether natural or synthetic) is one of the hardest substances on earth.
Sapphire crystal can sustain scratches very well and can only be scratched with certain rare materials, basically diamonds and especially hard rock types. Mineral glass, a common material for watch glasses a swell, scratches more easily but can withstand impacts better.
Additionally, Australian Sapphires are an extremely durable stone with a hardness of nine on Mohs' scale, which makes them an extremely versatile and high quality piece for everyday wear.
Light Test
Turn out the lights in a room and shine a flashlight on the sapphire. It should reflect only the color of the stone. If it reflects other colors too, it is a fake.
Blue Sapphires
Color has the greatest influence on a sapphire's value, and preferred sapphires have strong to vivid color saturation. The most valued blue sapphires are velvety blue to violetish blue, in medium to medium-dark tones. Sapphires with these qualities command the highest prices per carat.