Diamond Buying School is reader-supported. Here's how it works.

Independent Diamond Education

Diamond Buying School: A solitaire diamond engagement ring.

Welcome to Diamond Buying School, your source for learning all about diamonds before you buy.

Start with our Diamond Buying Guide or learn about the four Cs of diamonds - the four important characteristics that determine the value of a diamond.

Finally, learn how to save money and buy ethical diamonds with the best online jewelers.

Should you spend three months’ salary on an engagement ring? Two months? One? These benchmarks for how much engagement ring to buy have been around for decades. But they’re not the right answer to how much you should spend on an engagement ring. How much engagement ring to buy When buying an engagement ring, you […]

To cut to the chase: The best diamond cut for an engagement ring is the Round Brilliant, followed closely by the princess cut, the cushion cut, and the oval cut. Almost everyone agrees that the Round Brilliant cut is the most stunning diamond shape.   That’s my best answer in a nutshell. And I’ll back up […]

Sure, a tasty dinner out at a swanky, fancy restaurant and maybe an evening dancing to a live band is a good way to celebrate and observe an anniversary, but that’s not the only way, and something that only comes around once a year deserves to be celebrated differently than by doing the same kind […]

Good things do come to those who wait, especially if you’re a diamond merchant, a woman who likes to have a few “best friends” in her jewelry box, or a miner looking to strike it rich. Striking a new diamond friendship could just be what a woman needs, especially if there is a diamond wedding […]

Recommended Jewelers

James Allen

James Allen logo

James Allen is the most competitive diamond vendor with more than 150,000 loose diamonds in inventory. They have been a leader in selling diamonds online and pioneered 3D imaging so you can see the exact diamond you're buying in exquisite detail. You'll find it hard to beat James Allen in terms of price or selection. Read our James Allen review.

Shop James Allen »

Whiteflash

Whiteflash logo

Whiteflash is the home of "A Cut Above" diamonds which are among the best quality round- and princess-cut diamonds in the world. With superior diamond photographs and videos, Whiteflash's diamonds seem to come to life -- even online. Read our Whiteflash review.

Shop Whiteflash »

Brilliant Earth

Brilliant Earth logo

Brilliant Earth is the global leader in ethically-sourced jewelry. Brilliant Earth goes above and beyond existing standards to offer “Beyond Conflict Free Diamonds” that they select for their ethical and environmentally-responsible origins. With over 120,000 diamonds in inventory, you can be sure to find your perfect diamond and feel good knowing it was responsibly-sourced. Read our Brilliant Earth review.

Shop Brilliant Earth »

Blue Nile

Blue Nile logo

Blue Nile is the world's largest online jeweler. Their reputation for quality and customer service is unparalleled in the industry. Blue Nile offers free shipping, a 30-day return policy and satisfaction guarantee. Read our Blue Nile review.

Shop Blue Nile »