Narrator: High-quality black opal can cost over $10,000 per carat, making it one of the world's most expensive gemstones. But mining black opal isn't easy. After investing tens of thousands of ...

Fire opals are translucent and contain shades ... The darker-colored Paraiba tourmalines are the most in demand and the most ...

The Most Expensive Axinite in the World While ... The fire opal is rarer than other types of opal, especially in gem-quality ...

Let's explore the world's most expensive paintings and their impact on art history, from Da Vinci's $450.3 million 'Salvator Mundi' to Picasso's $174 million 'Les Femmes d'Alger'. "Salvator Mundi ...

People buy the most expensive watches in the world for various reasons—as a statement of success, an appreciation for precision engineering, or simply as heirlooms that transcend generations.

Some Congressional races are seeing more spent by super PACs and other outside groups than the candidates themselves. Use the options below to see the most expensive races based on either campaign ...

Read on to find out the most expensive ZIP codes in the United States in 2023 as well as trends and themes these places share. The Most Expensive ZIP Codes in America Using data from Zillow’s ...

As The Food Programme explores in ‘Britain's Secret Saffron Story’, the red spice is one of the world’s most expensive ingredients – worth more per ounce than gold. But what other foods ...

This gem belongs to the corundum family ... They were often used in jewelry and to decorate the robes of clergy. One of the most well-known modern sapphires is in Princess Diana's engagement ...

The most expensive states for millionaires tax high earners at high rates. (And if you fall into the top federal income tax bracket, the IRS will tax some of your earnings at the 37% rate.) ...

Read on to find out which schools are the most expensive colleges in California. Looking over the list of the most expensive colleges in California, the clearest pattern that emerges is one that ...

According to a new report by the online database Numbeo, Geneva is the most expensive city in the world. The company considered the cost of groceries, eating out, rent, and overall cost of living ...