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Category Archives: 9. September Birthstone Tidbits
Madagascar: A gemologist’s journey (Ilakaka Sapphire Deposit)
Ilakaka was probably the most exciting mining stop for me on the entire trip. As a Gemologist, I learned about this discovery, saw pictures and videos of it in my studies, but never imagined I would ever go there. This … Continue reading
Beware of “Manufactured Product” Written on your Gem Report
In my previous posts I discussed my continuing education lesson on Emerald Enhancements. There was one classification that I have yet to explain: Manufactured Product. When GIA classifies an emerald (or any other stone) as a Manufactured Product, this doesn’t … Continue reading
Posted in 5. May Birthstone Tidbits, 7. July Birthstone Tidbits, 9. September Birthstone Tidbits, Gemstone Tidbits
Tagged emeralds, gemstone care, gemstone cleaning, gemstone repairs, gemstone treatments, how to care for my gemstone, Manufactured Product, resin, rubies, sapphires, treated gemstones
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A Little Bulge Is Beneficial
In my previous post I discussed how the pavilion of a diamond can affect its beauty. Today I want to talk about how pavilion can affect the beauty of a colored stone. As I mentioned, fire and brilliance are the … Continue reading
Pleochroic Sapphire
Like most gemstones, sapphire is doubly refractive and like many doubly refractive stones, it generally shows pleochroism. Pleochroism is an optical phenomenon that is a direct result of double refraction…when a light beam splits and travels in different directions at … Continue reading
Sapphire Clarity
As I mentioned previously, there are three basic gemstone types in terms of clarity: Type I stones are usually eye-clean…those include aquamarine, green tourmaline, blue zircon and others Type II stones generally show SOME eye-visible inclusions. Those include alexandrite, sapphire, … Continue reading
Pink Sapphires
I touched on pink sapphires in my July post concerning the color range of rubies. Many stones that are called “rubies” by some retailers are really pink sapphires because they are too pink and light in tone to be a … Continue reading
Birds of a Feather: Sapphire & Ruby
Did you know that sapphire and ruby are essentially the same gemstone with different colors? That’s right, both sapphire and ruby belong to the gem species Corundum. Ruby is the red variety of corundum and, while most of us know … Continue reading
