Investors worried about the Federal Reserve's interest rate policy and the US-China trade dispute should take a gold stake here, CNBC's Jim Cramer said on Friday as equities retreated for the first time. times in six days.

"If you are looking for an insurance policy against volatility and economic uncertainty, gold is a great solution," he told investors. "Although I like the stock market here, as you know, now that the Fed has decided to be more patient, the goal of diversification is to be prepared just in case something would go wrong … and your thesis does not materialize. "

The precious metal traded at around $ 1,288 on Friday, up from 5% on December sales. But, in Cramer 's view, buying real gold in the form of bullion or coins is not the best way to get exposure.

"Unless you can afford to buy real gold bullion and store it in a deposit bank, I do not recommend owning the metal," he said in " Mad Money ". "Most gold coins are sold at a large profit margin, especially if you go to a parts dealer, and they are not as liquid." It's not like you can sell a piece of gold. gold coin also easily via a brokerage account. "

Instead, Cramer recommended obtaining direct exposure through the SPDR Gold Shares Fund, its preferred gold-based exchange-traded fund, a gold mining ETF or the title of a producer of gold. high quality gold like Barrick Gold.

The SPDR Gold Shares Fund and gold mining ETFs can be beneficial because they reduce the risks and drawbacks, said Cramer. The first, for example, has physical gold, which is not necessary, while the gold mining ETFs combine risky mining titles to protect against the risks associated with a single stock or at a single mine.

But the long-time stock picker has also favored Barrick, a gold producer who recently acquired long-time Cramer-fave Randgold Resources.

"It's definitely worth keeping an eye on" as both companies perfect their combination, said "Mad Money" animator. "The company has the lowest total cash costs among its peers – I like that – [and] he owns a well diversified portfolio of assets around the world – I like that. "

All in all, it may not be a good time to invest in gold, but adding some shine to your wallet is not a bad thing, Cramer concluded.

"No, it's not the perfect time to buy gold, but I still advocate having at least a little as insurance against the unknown," has-it- he declares.

"We know that gold wins in case of chaos and uncertainty.If you feel a little worried about your portfolio, you might want to buy the GLD, one of the mining ETFs, or the new Barrick Gold, "he continued. "For caution, I recommend waiting until Barrick presents its first quarter in the form of a combined company, although I like the merger very much now [former Randgold CEO] Mark Bristow is responsible. "