Gemstone Windows and Dark Patches: What to Look for in a Cut Gem

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AI-generated educational illustration. Conceptual only; not a photograph of an actual specimen or location. A coloured gem may have a pale, see-through centre or areas that look almost black. Both affect its appearance, but they do not have the same cause. What is a window? A window is an area where light passes through the gem instead of being returned towards the viewer. You may see the background through it, especially near the centre. Cutting angles and the material's refractive index—how it bends light—help determine whether this happens. There is no single ideal depth for every gemstone. Why dark patches need a closer look Darkness can have several causes. The material may absorb a lot of light. Some facets may reflect dark surroundings or the observer. Extinction is another cause, involving light that is not returned to the viewer after internal reflection. For that reason, calling every black patch “extinction” can be misleading. A simple viewing routine Look at the gem fac...
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What is the difference between White gold vs Yellow gold

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White Gold vs Yellow Gold

White gold and yellow gold are two popular choices for jewelry. The main difference between the two is the metal alloys used to create them. White gold is made by mixing gold with nickel, palladium, or silver, while yellow gold is made by mixing gold with copper and sometimes silver. White gold is often preferred for its more modern look, while yellow gold is favored for its classic appearance.

White Gold Jewelry and Coins Information

Here are some facts about white gold jewelry and coins:

White Gold Image
White Gold Jewelry

White gold is a popular material for jewelry, as it has a similar appearance to platinum but is less expensive. White gold jewelry is typically made by mixing gold with nickel, palladium, or silver. The most common karat weights for white gold jewelry are 14 karat and 18 karat.

White Gold Coins

White gold coins are a popular choice for collectors and investors. Some of the most famous white gold coins include the American Gold Eagle, Canadian Gold Maple Leaf, Australian Gold Kangaroo, Chinese Gold Panda, and South African Krugerrand.

Most Expensive Design of White Gold Jewelry

The most expensive design of white gold jewelry is currently the "Pink Star" diamond, which is set in a white gold ring and valued at $71.2 million.

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