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GIA 4Cs Diamond Blog

GIA 4Cs Diamond Blog

Notable for its majestic blue velvet and intense royal purples, the first of December’s birthstones is named after the only country it can be found: Tanzania. Exceptional tanzanite can display three distinct colors in three crystal directions. (more…)

garnet birthstone

January’s birthstone, garnet, is known for its impressive variety of eye-catching colors, which can be almost any color of the rainbow. Garnets occur in green (demantoid and tsavorite), orange (spessartine), red (almandine and pyrope), and purplish red (rhodolite), plus a few rare garnets even change color under different types of light. But color is far from a garnet’s only attractive feature. (more…)

The October birthstone, opal, is noted for its individuality, magic, and mystery. Its unique display of flashing rainbow colors is unlike any other gem, and has been compared to volcanoes, galaxies, and fireworks. (more…)

Aquamarines from Afghanistan

As its namesake suggests, the cool blue hues of March’s captivating gemstone are reminiscent of a tranquil sea. Aquamarine crystals can grow in large sizes with excellent clarity. (more…)

pearl necklace

The June birthstone, the pearl, has a long and rich history. For many young women, pearls are just something you wear when you wanted to look classy and put together. But the unique creation of the pearl, the only gem made from a living creature, tells us that this is an incredibly special little sphere. (more…)

Synthetic gemstones

Contrary to what many people may think, the word “synthetic” does not mean fake when it comes to gemstones. The term actually comes from the Greek word for “to put together.” People “build” or, more accurately, “grow” synthetic crystals. (more…)