jewelry

Question: Has anyone ever heard of Serengeti rubies? We bought two. The seller told us they were new to the US. Each is about 1 carat and a 7 × 5.3…

Question: I was told years ago that natural rubies fluoresce but lab-grown rubies won’t. Recently, someone told me the opposite. He says…

Question: Are there any tricks to finding the curved striae or curved lines in synthetic ruby and sapphire? Sometimes I have trouble finding them.…

Question: Which laboratory method creates the best synthetic corundum for faceting? By International Gem Society 2 minute read Synthetic…

People have highly prized sapphires for ages. Their beauty and hardness make them ideal choices for jewelry. The demand for sapphires, however,…

The distinction between ruby and sapphire is more nebulous than most people realize. These gems are the same mineral: corundum. Color is the only…

What’s the difference between rubies and pink sapphires? According to one old joke, that depends on whether you’re the buyer or the seller.…

Many cultures have long considered ruby a stone of kings. Not surprisingly, ruby symbolism and lore have many associations with power and wealth.…

With large sizes and exceptional color, these eight gems are among the most spectacular and famous rubies in the world. Learn more about them and…