Facts: 1. Some of the world's most famous diamonds, including the Hope Diamond, have been set in platinum. 2. Gold is the most malleable and ductile of metals. You could stretch one ounce into a strand over 40 miles long. 3. About 80% of the world's diamond output is used for industrial purposes, with the United States importing some 60% of all industrial diamonds mined. 4. Since unique conditions are required for their creation, each shade of colored diamond is found in only a few mines in the world. 5. There are only four precious gemstones in the modern world: diamonds, rubies, sapphires, and emeralds. All other gems are known as semi-precious. 6. There's nothing like a classic. The most common setting for an engagement ring is the solitaire. This traditional setting features a single center gemstone. 7. To add a modern twist to a classic ring, select a setting with accent diamonds. Consider channel, bezel, burnish, bead, invisible set, or pave to add some extra sparkle. 8. Michael C. Fina hand selects diamonds with a balance of the 4 C's: clear diamonds with a gorgeous color that are properly proportioned and beautifully cut. 9. Yellow, Pink, Blue, Black. . . Diamonds come in every shade and hue imaginable, with each one exhibiting its own unique characteristics. 10. Show her you appreciate her uniqueness by giving her a rare colored diamond. For every one colored diamond, there are 10,000 colorless ones that have been discovered. 11. Platinum is strong and sturdy. Renowned for its superior durability, it will not wear away over time and will not change shape the way many other metals will. 12. Did you know that platinum is 30 times rarer than gold and one of the rarest metals on the planet? 13. The purest form of gold is 24-karat, but this is seldom seen in rings because it is too soft for setting a diamond. Most commonly, 14-karat and 18-karat gold are used in fine jewelry. 14. Known for its beautiful color, not everyone knows that white gold doesn't exist in nature. It is an alloy of yellow gold and a mixture of nickel, palladium, rhodium, and other metals, which turns the yellow gold to white. 15. Gold's Latin name, "aurum," translates to "glowing dawn." This refers to gold's natural yellow color, which has been incorporated into fine jewelry for more than 5,000 years. 16. Popular with everyone from Queen Cleopatra to Elizabeth Taylor, the emerald is the only gemstone to have a gem cut named after it. 17. Many of the designers that Michael C. Fina carries are exclusive to us in the New York area. This includes Hearts on Fire, Mark Patterson, Michael B., Erica Courtney, MaeVona, and many others. 18. No surprise here: Valentine's Day is the most popular day to pop the question. 19. The wedding ring symbolizes eternal love. It is a tradition that dates back more than 5,000 years ago to ancient Egypt. 20. Most people in the U.S., England, France and Canada wear their engagement rings on their left hand. However, people in Germany, Russia, India and Norway, brides and grooms wear their wedding bands on the right hand instead. 21. It is common for grooms to wear a wedding band following the nuptials, though this tradition is relatively new. It dates back to the Great Depression era of the 1930s. 22. The average woman's ring size is 6 and the average ring size for a man is 10. 23. Diamonds were originally discovered more than 3,000 years ago in India. They were primarily used in religious ceremonies before they became a staple in fine jewelry. 24. Because of the vibrant color and rarity, the finest rubies are actually more costly than diamonds of the same size. 25. Although they are often used interchangeably, the difference between red, rose, and pink gold is the amount of copper used in the alloy.