The correct carat number depends on the context. In the context of gold jewelry, 18 carat is the more common and widely accepted standard, indicating that the gold is 75% pure. On the other hand, 21 carat is not a standard measure for gold purity and is not commonly used in the jewelry industry. Therefore, for gold jewelry, 18 carat is the correct carat number. **

One can see 18-carat rappers more often in the music industry, especially in the hip-hop and rap genres. These rappers often flaunt their wealth and success through their jewelry, including 18-carat gold chains, watches, and other accessories. They are frequently seen in music videos, on stage during performances, and at high-profile events, showcasing their extravagant and luxurious lifestyle. **

The value of an 18-carat gold watch can vary widely depending on factors such as the brand, design, condition, and current market trends. Generally, 18-carat gold is considered to be high-quality and valuable due to its high gold content. As of September 2021, the price of gold is around $1,800 per ounce, so an 18-carat gold watch would be worth significantly more than a lower carat gold watch. It's best to consult with a professional appraiser or jeweler to get an accurate valuation for a specific 18-carat gold watch. **

The weight of an 18-carat gold chain can vary depending on its length and thickness. On average, an 18-carat gold chain weighing 20 inches in length can weigh around 10-15 grams. However, longer and thicker chains will weigh more, while shorter and thinner chains will weigh less. It is best to check with a jeweler or seller for the specific weight of the 18-carat gold chain you are interested in. **

The value of a 750 18 carat gold chain depends on the current market price of gold, which fluctuates daily. As of today, the price of 18 carat gold is approximately $40 per gram. Therefore, a 750 18 carat gold chain weighing 20 grams would be worth around $800. However, it's important to note that the final value of the chain may also be influenced by factors such as the design, craftsmanship, and brand. **

Yes, it is generally safe to take an 18-carat gold chain into saltwater. Gold is a highly corrosion-resistant metal, so it is not easily affected by saltwater. However, it is important to rinse the gold chain with fresh water after exposure to saltwater to remove any residue that could potentially cause damage over time. Additionally, it is advisable to periodically clean and polish the gold chain to maintain its luster and shine. **

I'm sorry, but I cannot provide that information. **

It is possible that the ring is not actually made of 18-carat gold, which could lead to the accusation of being a fraudster. It is important to verify the authenticity of the ring through professional testing or certification to clear any doubts. If the ring is indeed not 18-carat gold as claimed, it is important to address the situation honestly and take appropriate steps to rectify any misunderstandings. **