How much does a 5.00ct+ natural cushion diamond cost?

As of October 2026, 5.00ct+ natural cushion diamonds range from $2,586 NZD/ct to $163,296 NZD/ct, with an average of $32,360 NZD/ct.

What is the price range for 5.00ct+ natural cushion diamonds?

As of October 2026, the lowest listed price is $2,586 NZD per carat and the highest is $163,296 NZD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 5.00ct+ natural cushion diamonds are available?

There are 6,431 active natural cushion listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 5.00ct+ natural cushion diamond?

Approximately 36% of these diamonds are available at multiple retailers, with an average price spread of 53% between the cheapest and most expensive listing of the same stone.

Natural Cushion Diamonds, 5.00ct+

Quick answer

As of October 2026, there are 6,431 listings of natural cushion diamonds between 5.00ct+ from at least 52 retailers. A typical stone in this range costs about $194,160 NZD in total, or $32,360 NZD per carat, and most listings sit between $2,586 NZD and $163,296 NZD per carat. About 36% of these stones are listed by more than one retailer, and the same stone is priced 53% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is H to I SI1 at $29,297 NZD per carat across 195 listings. The same shape in lab grown form runs about $1,617 NZD per carat, roughly 95% less.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Cushion natural stones in the index: 2,948 USD per carat, +1.7% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Browse 6,431 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$39K	$42K	$39K	$34K	$30K	$28K	$22K	$17K	-
F-G	-	-	$34K	$26K	$24K	$24K	$19K	$15K	-
H-I	-	-	$18K	$23K	$19K	$21K	$16K	$13K	-
J-K	-	-	-	$16K	$12K	$13K	$12K	$8,865	-
L-M	-	-	-	-	$8,150	$6,296	$6,156	-	-
N+	$11K	$21K	$18K	$17K	$15K	$16K	$11K	$9,813	$8,016

Price by Colour & Clarity

Average price per carat for 5.00ct+ natural cushion diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	13	$70,049 NZD	7%
D-E	IF	15	$75,461 NZD	66%
D-E	SI1	155	$39,280 NZD	40%
D-E	SI2	62	$29,857 NZD	35%
D-E	VS1	198	$52,792 NZD	58%
D-E	VS2	232	$49,274 NZD	31%
D-E	VVS1	46	$69,306 NZD	44%
D-E	VVS2	80	$60,482 NZD	29%
F-G	SI1	233	$34,160 NZD	33%
F-G	SI2	115	$27,437 NZD	33%
F-G	VS1	422	$43,293 NZD	55%
F-G	VS2	354	$42,171 NZD	38%
F-G	VVS1	96	$60,538 NZD	22%
F-G	VVS2	102	$46,127 NZD	41%
H-I	SI1	195	$29,297 NZD	44%
H-I	SI2	150	$23,397 NZD	29%
H-I	VS1	254	$34,399 NZD	49%
H-I	VS2	421	$37,578 NZD	37%
H-I	VVS1	31	$32,903 NZD	36%
H-I	VVS2	148	$41,759 NZD	34%
J-K	SI1	228	$21,616 NZD	40%
J-K	SI2	110	$15,785 NZD	31%
J-K	VS1	102	$21,186 NZD	45%
J-K	VS2	153	$22,563 NZD	28%
J-K	VVS2	60	$28,272 NZD	49%
L-M	SI1	38	$10,960 NZD	27%
L-M	VS1	16	$14,512 NZD	27%
L-M	VS2	30	$11,211 NZD	54%
N+	FL	13	$19,944 NZD	25%
N+	I	92	$14,272 NZD	78%
N+	IF	68	$36,705 NZD	61%
N+	SI1	257	$19,544 NZD	79%
N+	SI2	206	$17,473 NZD	66%
N+	VS1	623	$27,119 NZD	83%
N+	VS2	705	$28,055 NZD	74%
N+	VVS1	122	$31,302 NZD	78%
N+	VVS2	275	$30,917 NZD	138%
N+	other	11	$12,180 NZD	58%

Explore by Specification

D FL D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 D SI2 E FL E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 E SI2 F FL F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 F SI2 G FL G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 G SI2 H FL H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 H SI2 I FL I IF I VVS1 I VVS2 I VS1 I VS2 I SI1 I SI2 J FL J IF J VVS1 J VVS2 J VS1 J VS2 J SI1 J SI2