Cushion diamonds at Blue Nile

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

Facet Wire is tracking 37 live cushion diamonds at Blue Nile listings right now across 1 retailers: Blue Nile (37). Prices run from $1,727 to $327,746, with a median of $10,950 ($6,661 per carat at the median). Data refreshes nightly — last build 2026-10-22.

Cheapest live cushion diamonds at Blue Nile listings

Stone	Retailer	Carat	Color	Clarity	Cert	Price	$/ct
GIA 1.00 Carat D-SI1 Ideal Cut Cushion Natural Diamond	Blue Nile	1.00	D	SI1	GIA	$1,727	$1,727
GIA 1.00 Carat G-VS1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.00	G	VS1	GIA	$2,285	$2,285
GIA 1.01 Carat I-IF Very Good Cut Cushion Natural Diamond	Blue Nile	1.01	I	IF	GIA	$2,445	$2,421
GIA 1.00 Carat G-SI1 Ideal Cut Cushion Natural Diamond	Blue Nile	1.00	G	SI1	GIA	$2,744	$2,744
GIA 1.20 Carat F-VS2 Very Good Cut Cushion Natural Diamond	Blue Nile	1.20	F	VS2	GIA	$2,749	$2,291
GIA 1.14 Carat G-SI1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.14	G	SI1	GIA	$4,120	$3,614
GIA 1.12 Carat E-SI1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.12	E	SI1	GIA	$4,277	$3,819
GIA 1.01 Carat G-VVS1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.01	G	VVS1	GIA	$4,570	$4,525
GIA 1.23 Carat D-SI1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.23	D	SI1	GIA	$5,089	$4,137
GIA 1.11 Carat G-VS1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.11	G	VS1	GIA	$5,210	$4,694
GIA 1.01 Carat D-VVS1 Very Good Cut Cushion Natural Diamond	Blue Nile	1.01	D	VVS1	GIA	$5,790	$5,733
GIA 1.51 Carat G-VVS1 Ideal Cut Cushion Natural Diamond	Blue Nile	1.51	G	VVS1	GIA	$6,791	$4,497

Search all 52316 tracked listings →

Frequently asked questions

How much do cushion diamonds cost at Blue Nile?

Facet Wire tracks 37 live cushion listings at Blue Nile, from $1,727 to $327,746, with a median price of $10,950 ($6,661 per carat).

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

Not always — the same certified cushion 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 cushion diamonds does Blue Nile list?

37 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.