Round|Lab Grown|IGI

4.26ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG738511281

Shape and cutting style on the report: Round brilliant

Certificate IGI LG738511281

Diamond specifications and retailer prices

From $4,528 NZD

$2,552 USD

As of October 29, 2026

Save $19,571 NZD (81%) vs most expensive(unlock to see where)

28 retailers carry this diamond

Most expensive: $24,099 NZD at With Clarity · As of October 31, 2026

View at With Clarity

About this 4.26ct lab-grown round diamond

This 4.26ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG738511281 or 738511281. Listed at 28 retailers as of October 29, 2026, with prices from $4,528 to $24,099, a $19,571 spread on the same certified stone. With Clarity lists it at $24,099. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.26

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.5°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG738511281

Dimensions10.38 × 10.33 × 6.39 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG738511281

Side View

Caratlytics Score

How it works →

Excellent

Excellent quality and great value

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29

Current: $7,443 NZD|Low: $4,528 NZD|High: $43,985 NZD|Avg: $12,543 NZD|+2.2%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

Retailer 12

Retailer 13

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

With Clarity

October 31, 2026

Retailer 15$4,528 NZD

Retailer 7$4,959 NZD

Retailer 5$5,700 NZD

Retailer 12$6,434 NZD

Retailer 19$6,804 NZD

Retailer 2$7,044 NZD

Retailer 18$7,189 NZD

Retailer 1$7,443 NZD

Retailer 9$8,726 NZD

Retailer 14$9,986 NZD

Retailer 17$10,067 NZD

Retailer 6$12,239 NZD

Retailer 4$12,527 NZD

Retailer 16$12,797 NZD

Retailer 10$13,244 NZD

Retailer 8$16,388 NZD

Retailer 11$16,502 NZD

Retailer 3$19,689 NZD

Retailer 13$23,900 NZD

With Clarity$24,099 NZD

37 data points across 20 retailers

28 retailers$4,528 NZD to $24,099 NZD

Retailer 1

$4,044 NZD

$2,279 USD

Price last confirmed 36 days ago

Retailer 2

$4,400 NZD

$2,480 USD

View

Price last confirmed 25 days ago

Retailer 3

$4,400 NZD

$2,480 USD

View

Price last confirmed 18 days ago

Retailer 4

$4,528 NZD

$2,552 USD

View

Final sale: no returns

Retailer 5

$4,626 NZD

$2,607 USD

View

Price last confirmed 34 days ago

Retailer 6

$4,691 NZD

$2,644 USD

View

Retailer 7

$4,691 NZD

$2,644 USD

View

Price last confirmed 29 days ago

Retailer 8

$4,716 NZD

$2,658 USD

View

Price last confirmed 38 days ago

Retailer 9

$4,959 NZD

$2,795 USD

View

Retailer 10

$5,700 NZD

HK$25,100 HKD

View

Retailer 11

$6,434 NZD

£2,855 GBP

View

Retailer 12

$6,448 NZD

$3,634 USD

View

Price last confirmed 33 days ago

Retailer 13

$6,804 NZD

$3,835 USD

View

Retailer 14

$7,044 NZD

$3,970 USD

View

Retailer 15

$7,189 NZD

$4,052 USD

View

Retailer 16

$7,443 NZD

€3,995 EUR

View

Retailer 17

$8,726 NZD

$4,918 USD

View

Retailer 18

$9,986 NZD

ZAR 90,921 ZAR

View

Retailer 19

$10,067 NZD

A$8,729 AUD

View

Price last confirmed 9 days ago

Retailer 20

$12,239 NZD

$6,898 USD

View

Price last confirmed 21 days ago

B+

Retailer 21

$12,527 NZD

$7,060 USD

View

B+

Retailer 22

$12,797 NZD

£5,679 GBP

View

B+

Retailer 23

$13,244 NZD

$7,465 USD

View

B+

Retailer 24

$16,388 NZD

$9,236 USD

View

B+

Retailer 25

$16,502 NZD

SGD 12,568 SGD

View

Retailer 26

$19,689 NZD

A$17,072 AUD

View

Price last confirmed 26 days ago

Retailer 27

$23,900 NZD

$13,470 USD

View

Most Expensive

With Clarity

738511281 · Oct 31

$24,099 NZD

$13,582 USD

View

27 more retailers have this diamond

Prices start from $4,528 NZDSave up to $19,571 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

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4.26ct Round

$4,528 NZD