Does Costco sell lab grown diamonds?

Do Costco offer lab grown diamonds? Although treating diamonds is an accepted practice among many jewellers, Costco sells only natural and untreated diamonds.

Does Costco sell lab diamonds?

All diamonds offered by Costco are natural and untreated. Colored gemstones are often enhanced in the production process. All colored gemstones offered by Costco have been enhanced unless otherwise stated.

Who offers the best lab-grown diamonds?

Are lab diamonds worthless after purchase?

Resale Value of Lab-Grown Diamond

Lab-grown diamonds lose most of their value immediately after the purchase. They have significantly lower resale value, often less than 10-30% of their original retail price because they are easy to mass produce.

Are Costco diamonds genuine?

Costco offers our members high quality jewelry at an exceptional value. Our team of GIA Graduate Gemologists inspect every diamond to ensure it meets Costco's strict quality standards. We only sell natural and untreated diamonds.

5 Ways To SAVE BIG Buying A Lab Grown Diamond

What is the Costco diamond controversy?

Tiffany originally filed suit against Costco in February 2013, charging the Issaquah, Wash. -based warehouse retailer with trademark infringement for selling engagement rings identified as “Tiffany” even though Tiffany has never sold its rings through Costco.

Are all Costco diamonds GIA?

At Costco, we base our strict standards for diamonds on those set by the renowned Gemological Institute of America (GIA).

Do rich people buy lab-grown diamonds?

The answer is a resounding yes. Lab-grown diamonds have become a popular choice among affluent buyers who value affordability, sustainability, and style. Whether it's a stunning engagement ring or a timeless eternity band, lab-grown diamonds offer a luxurious and ethical alternative to traditional mined diamonds.

How much is a 1 carat lab-grown diamond worth?

The average price of a 1 carat lab grown diamond is currently $668 (see price chart below). 1 carat lab grown diamonds can cost anywhere from $404 - $1,460 depending on the diamond's shape, color, clarity, and other factors. To see specific details on diamond pricing by shape see our 1 carat diamond prices table below.

Is there any reason not to buy a lab diamond?

Lab-Grown Diamonds Have No Resale Market

Of all the reasons to avoid lab-grown diamonds, this may be the most important: you won't be able to sell them—at all. Try bringing your lab-grown diamond to a jeweler and asking them to buy it back. Most won't even make you an offer. Not for half the price.

How much should a 5 carat lab grown diamond cost?

5 Carat Lab Grown Diamond Prices

The average price of a 5 carat lab grown diamond is currently $2,772 (see price chart below). 5 carat lab grown diamonds can cost anywhere from $1,418 - $6,834 depending on the diamond's shape, color, clarity, and other factors.

Do celebrities buy lab-grown diamonds?

- Leonardo DiCaprio, also committed to environmentalism, invested in a lab grown diamond company and endorses the use of lab grown diamonds. - Zendaya, Meghan Markle and Penelope Cruz have been sighted with lab diamond pieces. These celebrities do not just wear lab grown diamonds they are advocating a movement.

How much is a 2 carat lab grown diamond?

2 Carat Lab Grown Diamond Prices

The average price of a 2 carat lab grown diamond is currently $1,436 (see price chart below). 2 carat lab grown diamonds can cost anywhere from $734 - $3,542 depending on the diamond's shape, color, clarity, and other factors.

Do Tiffany's sell lab diamonds?

Declare your love with this timeless Tiffany Lab Grown Emerald engagement ring. Expertly crafted from the finest lab grown diamond set in a four-prong setting, its delicate uniform band is perfect for any special occasion.

Are lab diamonds falling in price?

By 2024, lab grown diamonds have a 90% discount compared to natural diamonds of similar size and quality. In the 12 months leading up to November 2024, prices for loose lab grown diamonds decreased by 20%. As of 2025, lab grown diamonds cost about 83% less than natural diamonds.

Which diamond ring is better Tiffany or Costco?

Both Tiffany and Costco provide high-quality diamonds, but Tiffany's stones generally come with a more rigorous selection process and iconic craftsmanship. Costco offers excellent value with certified diamonds that meet industry standards but may not have the same brand prestige.

Is it a good idea to buy diamonds from Costco?

Costco guarantees that the diamonds it sells are at least VS2 in clarity and grade I in color. While its most affordable diamond ring was about $600 as of February 2025, keep in mind that Costco does not offer cleaning or repair services for its jewelry and that you cannot have a ring sized to fit.

Does Tiffany use GIA diamonds?

Diamonds from this time will sometimes be laser inscribed and sometimes not, but at this point Tiffany no longer worked with the GIA, having established the credibility of their laboratory and adopted leading edge technologies, including laser engraving of the diamonds.

Can you return diamonds at Costco?

Diamonds: 1.00ct or larger: Members returning a diamond over 1.00ct must also present all original paperwork (IGI and/or GIA certificates) at which time they will receive a Jewelry Credit Memo. Within 48 hours, our Costco Graduate Gemologist will inspect for authenticity.

Why did Tiffany sue Costco?

Tiffany & Co has settled its more than eight-year-old lawsuit accusing Costco Wholesale of trademark infringement and counterfeiting for selling generic diamond engagement rings bearing the "Tiffany" name.

Why are millennials not buying diamonds?

Spending Less

According to the Federal Reserve, millennials make less money, leaving them with very little extra income to buy luxury items like diamonds, cars, homes, etc. Because they are working with less, millennials are more careful with their money and research deals online to find the best prices.

How often does Costco sell loose diamonds?

Costco sells only finished jewelry. No loose stones or semi-mounts are available online or in our warehouses.

What is the dark side of lab-grown diamonds?

Lab-grown diamonds consume significant amounts of energy, which can negate their sustainable appeal. The production processes, particularly using High Pressure High Temperature (HPHT), can demand more resources including water and electricity, which might not align with your ethical standards.

Can you resell a lab diamond?

The short answer is yes, lab-grown diamonds do have a resale value. However, that value is generally lower compared to natural diamonds. Lab-grown diamonds are often resold at a fraction of their original price, usually around 30-40% of what you initially paid.

What to avoid with lab-grown diamonds?

Avoid Harsh Chemicals

Never use harsh chemicals such as bleach or ammonia to clean your lab grown diamonds. These chemicals can cause damage to both the stone and the metal setting. Stick to mild dish soap or specialized jewelry cleaning solutions that are gentle on your precious diamonds.