AGTL - Advanced Gem Testing Lab - Quench crackled flame fusion synthetic sapphire. This synthetic sapphire was heated and cooled to created the cracks and then reheated to heal them in an
Beware: Laser Damage in Sapphires due to Jewellery Repair - SSEF
I got this two beautiful blue Sapphire for my collection. : r/Gemstones
Buy Blue Sapphire Stones Online
Blue Sapphires | The Dominant Colour in Corundum Gemstones
5.5mm Natural Crackled Blue Sapphire 0.79 Carats Round Dark Blue Quench Cracked Faceted Loose Sapphire Earth Mined Gemstone - Etsy India
I threw my blue sapphire because I wanted to make sure it's real and I found a scratch on it. Does it mean it's fake? - Quora
Pressure Heated Sapphire • Squeezing Sapphire • Corundums treated with high temperatures and low pressure (HT+P)
Know the Difference between Cracks and Inclusions on Gemstones
Help! Cracked/damaged sapphire | PriceScope
Cracks Vs Inclusions: Gemstone
Doomed by the crack… to your wallet | Gem Cutter's Corner