Search Results
Fine Jewelry University Articles matching: “Sapphire rings”
Showing only FJU Article results. Click here to show all results.
Fine Jewelry University (Show All FJU Articles)
-
Gem in the Spotlight: Iolite
…near the top of the list. Iolite’s color range of blue, blue-violet, and violet competes for public attention with sapphire, tanzanite, and amethyst. They may have name recognition, but iolite has a rich, unique color and great gem value on …. The Gemology of Iolite Iolite is the gem variety of the mineral Cordierite. Iolite was once known as a “water sapphire”. Dichroite is another synonym for iolite. Dichroite is a Greek word which loosely translates as two-colored rock. This …
-
Gem in the Spotlight: Alexandrite
Emerald by day, ruby by night, more expensive than diamond and more illustrious than sapphire, emerald, or even ruby, alexandrite has been known around the world as one of the most sought-after gems for the … isn’t the only stone to display color-change phenomena. There are color-change varieties of many gems including sapphire, tourmaline, spinel, garnet, etc. Alexandrite is, however, the most famous for it. It is so famous, in fact, that color-…
-
Synthetic Gems: The Whole Story
Ruby, sapphire, emerald and alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have been … thousands of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one …to positively identify as synthetic. Both, I feel, are impossible to identify in a piece of jewelry. Synthetic ruby, sapphire, alexandrite and emerald are very complex because there are different ways to make them. The inexpensive way to make…
-
Frequently Asked Question about Jewelry
… Gem Laboratory in the world, does not recognize SI3 grades. What is a Comfort Fit Ring? Many diamond wedding rings are available in a comfort-fit style. Comfort-fit engagement rings have extra metal to make the inside of the band slightly… comfortable fit. This might result in the feeling that the ring feels “looser” in the finger. Diamond engagement rings with a comfort fit design have an oval cross section with very smooth rounded edges, giving them the comfort-fit name…
-
Gem in the Spotlight: Pearl
… shape and appearance. Mabe pearls are typically used in jewelry designs that require a flat surface, such as earrings, pendants, and rings. Seed Pearls: These are very small pearls, typically less than 2mm in diameter, that are so named …. Storing pearls for long periods can cause them to dry out. So, enjoy them often! Keep in mind though that pearl rings in particular are not intended for everyday wear. Rings take more abuse than necklaces or earrings, so wear your pearls…
-
Gem in the Spotlight: Tanzanite
…, even with its rarity and dynamic look, tanzanite is still less in price than more commonly known gems like rubies, sapphires, and emeralds. Gemology of Tanzanite Gemologists refer to this gem as blue zoisite. The vast majority (current … its color. Tanzanite has a Moh’s hardness of 6-7, making it about the same hardness as quartz, softer than ruby, sapphire and emerald and hard than opal. Tanzanite has a refractive index of 1.69-1.70. History and Lore of Tanzanite Tanzanite …
-
Platinum
…. These qualities of platinum are equivalent to the ideals of eternal true love. All over the world, engagement rings, wedding bands and anniversary rings made in platinum symbolize the everlasting endurance of love. Platinum is pure, an …History of Platinum in Jewelry Platinum has been used in jewelry only since the 19th century. So platinum engagement rings are fairly recent. The Italian-French physician Julius Caesar Scaliger discovered Platinum in 1557. In 1590 Spanish …
-
The Magic of Polarized Light
…gemstones, due to their unique chemical structure, actually polarize light themselves. These gems are doubly refractive (DR) and they will split incoming light in multiple directions. Some common examples of doubly refractive gems are sapphire, tourmaline, and moissanite. These are contrasted with singly refractive (SR) gems like diamond that only bend light in one direction. Gemologists use the term birefringence to refer to how doubly refractive a particular gem is. By …
-
Gem in the Spotlight: Quartz
… Bloodstone Green jasper dotted with bright red spots Carnelian Reddish orange chalcedony Gemology of Quartz Quartz is known for its durability with a Mohs hardness rating of 7 (harder than opal and peridot but softer than topaz or sapphire). This makes it a fairly hard gemstone that is resistant to scratching and chipping. It is also resistant to heat and chemicals, which means that it can withstand daily wear and tear very well. All quartz has the same refractive index at…
