Round diamonds at Blue Nile

Every round diamond Facet Wire currently tracks at Blue Nile — lab-grown and natural, sorted by live price.

Facet Wire is tracking 33 live round diamonds at Blue Nile listings right now across 1 retailers: Blue Nile (33). Prices run from $1,025 to $90,742, with a median of $1,070 ($673 per carat at the median). Data refreshes nightly — last build 2026-10-18.

Cheapest live round diamonds at Blue Nile listings

Stone	Retailer	Carat	Color	Clarity	Cert	Price	$/ct
IGI 1.54 Carat F-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.54	F	VS1	IGI	$1,025	$666
IGI 1.57 Carat F-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.57	F	VS1	IGI	$1,044	$665
IGI 1.58 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.58	E	VS1	IGI	$1,057	$669
IGI 1.57 Carat D-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.57	D	VS1	IGI	$1,057	$673
IGI 1.57 Carat D-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.57	D	VS1	IGI	$1,057	$673
IGI 1.58 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.58	E	VS1	IGI	$1,057	$669
IGI 1.58 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.58	E	VS1	IGI	$1,057	$669
IGI 1.58 Carat D-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.58	D	VS1	IGI	$1,063	$673
IGI 1.59 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.59	E	VS1	IGI	$1,063	$669
IGI 1.59 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.59	E	VS1	IGI	$1,063	$669
IGI 1.59 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.59	E	VS1	IGI	$1,063	$669
IGI 1.59 Carat E-VS1 Ideal Cut Round Lab-Grown Diamond	Blue Nile	1.59	E	VS1	IGI	$1,063	$669

Search all 1997 tracked listings →

Frequently asked questions

How much do round diamonds cost at Blue Nile?

Facet Wire tracks 33 live round listings at Blue Nile, from $1,025 to $90,742, with a median price of $1,070 ($673 per carat).

Is Blue Nile the cheapest place to buy a round diamond?

Not always — the same certified round stone often lists at several retailers at once, at different prices. Facet Wire search puts every retailer's live price for matching specs side by side, so the gap is visible before you buy.

How many round diamonds does Blue Nile list?

33 in Facet Wire's tracked set right now, across lab-grown and natural. The count moves nightly as Blue Nile adds and sells inventory.

How often do these prices update?

Facet Wire re-scrapes its retailers nightly and rebuilds this page from the fresh data, so counts, medians and the cheapest listings reflect the latest run.