Is Costco Gold and Jewelry Real? (All You Need to Know)

If you are looking to buy jewelry such as earrings, bracelets, or an engagement ring, there are a lot of places to shop.

Costco is one of the retailers that stock jewelry and gold. Since they are known for being affordable, you might be wondering whether Costco gold and jewelry are real. Here’s all you need to know.

Are Costco’s Gold and Jewelry Real in 2024?

Costco’s gold jewelry is authentic if you’re looking for options in 2024. This retailer offers jewelry in 14k or 18k gold, and some wedding bands are in platinum. In addition, some of the items are available in silver and stainless steel. As well, Costco’s gold and jewelry are of good quality and well-priced; therefore, you can get long-lasting pieces. 

To learn more about Costco’s gold and jewelry, the types available, and whether it’s real, keep on reading for more facts!

What Types of Jewelry Does Costco Stock?

Costco is a warehouse store that stocks a decent collection of jewelry pieces.

Although Costco doesn’t match specialty sellers like James Allen and Blue Nile, you can get some beautiful pieces in the company’s stores.

The jewelry selection includes earrings, rings, necklaces, and bracelets, and features gemstones such as sapphires, diamonds, pearls, and emeralds.

Is Costco’s Jewelry Good Value?

Some customers think Costco jewelry is of good value because the company offers high-quality pieces.

In addition, it’s a good choice if you’re looking for low pricing. Compared to the big-name jewelry stores, Costco sells the same items at a lower price.

However, lately, fine jewelry reviewers have noted that Costco’s selection doesn’t have the same value compared in previous years.

This is because the quality of the gemstones has significantly gone down.

In addition, Costco always sells diamonds with GIA certifications, but most of the diamonds don’t have this certification.

Because of this, most buyers have lost faith in the jewelry department.

GIA, or Gemological Institute of America, is the world’s leading geological institute that tests diamonds and grades them.

This authenticates diamonds and justifies the high price to the customers.

Even though Costco has scrapped the GIA policies and the value of the jewelry has gone down, the company has not changed the prices.

Unfortunately, customers are skeptical of the high prices and the quality if there’s no authentication.

Also, while Costco jewelry is beautiful, the price is not equivalent to the value of the pieces, meaning you might end up spending more than you should.

Is Costco Gold Solid Gold?

Is Costco Gold Solid Gold?

According to Costco, the company offers jewelry in 14k or 18k gold, while other pieces are in platinum.

18k and 14k gold is usually mixed with other alloys, and the percentage of gold to alloy determines its quality.

For instance, 18k gold has 18 parts gold and 6 parts alloy: therefore, it’s 75% pure gold. On the other hand, 14k is 14 parts gold to 10 parts of alloy, which is 58.3% pure gold.

At Costco, the 18k could also be stamped 750, while the 14k is stamped 583.

Costco also sells other types of gold jewelry, such as white gold, rose gold, and yellow gold. Pieces in white gold are plated with Rhodium, which gives them their color.

Are the Diamonds at Costco Real?

Costco says that its diamonds are high quality and real because its team of GIA Graduate Gemologists inspects each diamond to ensure that it meets the company’s strict guidelines.

When you buy diamonds at Costco, you’ll get a Costco Article of Description, GIA diamond grading, and gemological reports if the item has a 1.00 carat or larger diamond center.

Costco advises customers to have their jewelry inspected every six months by a qualified jeweler for maintenance and repairs.

Can I Return Costco Jewelry?

If you buy jewelry from Costco and need to return it due to some issues, you can easily do so.

Fortunately, this retailer has a flexible policy that allows members to take back the jewelry whether they bought it in-store or online!

However, if you have resized piece of jewelry, you can return it, but under some caveats

More specifically, when ordering items such as rings, you’ll see guidelines on the product details that indicate how much the ring can be resized.

If you resize the ring within these limits, you can return it to Costco according to the return policy.

If you buy solitaire rings, you can resize them based on your preferences and still return them to Costco if there’s an issue.

However, if you resize a ring with limitations or that is not eligible for resizing, Costco might not accept the return or give you a refund.

Does Costco Clean Jewelry?

Unfortunately, Costco doesn’t clean or service the jewelry it sells. Rather, Costco advises customers to take the jewelry pieces to a professional jeweler for maintenance and alterations.

Does Costco Provide Jewelry Insurance?

Costco doesn’t offer any jewelry insurance; therefore, once you buy pieces, you’ll have to get your options to protect them from loss, theft, or damage.

Fortunately, though, several insurance programs cater to this need.

To know more, you can also read our posts on Costco jewelry return policy, things to know before buying Costco jewelry, and Costco return without a receipt policy.


Costco gold jewelry is authentic if you’re looking for options. This retailer offers jewelry in 14k or 18k gold, and some wedding bands are in platinum. In addition, some of the items are available in silver and stainless steel.

Costco gold and jewelry are of good quality and well-priced; therefore, you can get long-lasting pieces depending on your preference.

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Florence Howard

Florence Howard has been freelance writing for over a decade, and has a vocational background in retail, tech, and marketing. Outside of work, she enjoys listening to rock and metal, and playing with her dog and cat.

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