2024 Must-Have Ethically Sourced (& Sustainable) Engagement Rings

Not sure where to start? Our editors scoured Blue Nile’s selection to find the ultimate must-have rings to signify your love in 2024.

Ahead of writing this review, our team called in a sample of the brand’s lab-grown wedding rings. Prior to our review, we were able to examine the ring up close—which meant taking part in the unboxing experience and wearing the diamond for three weeks to examine wear and tear.

Despite a price tag under $5,000, this chunky ring packs an impressive 3 carats of diamonds. Each ring holds about 25 radiant-cut diamonds, which can be set into a 14k yellow, white, or rose gold band.

Want a little less bling? This 14k yellow gold ring only has seven cushion-cut diamonds at an impressive $1,500 price point. We love that the diamonds feel big enough to skip an engagement ring—and the prong setting only further exaggerates how large these gemstones look.

Another affordable option, this white gold ring combines 15 lab-grown diamonds together into a 2.5-mm band. The final effect is a dainty-yet-playful ring that can easily be added to an anniversary stack. Pro tip: It’s also available with larger diamonds for a total weight of up to 2 carats.

A classic band gets a modern makeover with this asymmetrical design from Zac Posen's line with Blue Nile. The platinum setting is affordably priced under $1,500, making the hardest part choosing the right diamond to round out the ring.

When dainty doesn’t reign supreme, this chunky 18k yellow gold band is a great alternative. The thick band gives the illusion the diamond is encapsulated by the band—giving the style a contemporary appearance that’s sure to stand out.

You’ll likely see the moi et toi engagement ring donning the fingers of your favorite cool girl. Translated to “you and me,” the style features two side-by-side gems and dates back to 1796. The 14k white gold setting comes with a pear-shaped diamond that can be set alongside a loose diamond of your choice: emerald, oval, radiant, or asscher.

Another trendy option right now, this halo setting is ideal for showing off your favorite pear-shaped diamond delivered straight from the lab. The 14k white gold band can hold up to an 8 carats, and we love that the prongs feel like an added design element.

Sometimes simple really is best. Designed to support up to 8 cataracts, the 1.90mm engagement band is available in white gold, rose gold, yellow gold, or platinum. We love that the affordable price point leaves more room to splurge on a bigger gem.

A vintage design gives this ring a timeless look (though we’d argue it’s undeniably trendy). The platinum band—which gives the style a fresh feel—comes with two .5-carat trapezoid diamonds ready to rest against the gem or your choice. We’d highly recommend the emerald cut. 

Finding ethical engagement and wedding rings is easier than ever thanks to online retailers like Blue Nile. The company delivers an array of modern and classic rings made with lab-grown diamonds that are sure to lower your carbon footprint without compromising on quality—and that includes custom designs.