The colored gems return in Crash 4 and like previous games in the PS1 series of titles, finding them will unlock secret areas that would have otherwise been inaccessible without having found the ...

The Crash 4 colored gems are one of the most hidden collectibles in the game, because each one of them can only be found at the end of a tough secret stage. What's more, after seeking out all four of ...

Scientists at the Institute of Minerals and Materials Technology (IMMT) found a new way to improve color, clarity and luster of red ruby — microwaves. Rubies are one of the world's most popular ...

Birthstones and their vivid colors have long been a way to connect your birth month with rare and unique gemstones. They are a meaningful gift for mom, a friend, spouse, or family member during a ...

A dazzling selection of Burmese rubies, Kashmir sapphires and rare colored diamonds are on the block at jewelry auctions by Christie’s and Phillips this fall, indicating the enduring investment ...