Round|Lab Grown|IGI

3.94ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818654313

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818654313

Diamond specifications and retailer prices

From $3,774 NZD

$2,127 USD

As of October 29, 2026

Save $20,658 NZD (85%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $24,432 NZD at Brilliant Earth · As of October 31, 2026

View at Brilliant Earth

About this 3.94ct lab-grown round diamond

This 3.94ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654313 or 818654313. Listed at 19 retailers as of October 29, 2026, with prices from $3,774 to $24,432, a $20,658 spread on the same certified stone. Brilliant Earth lists it at $24,432. 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

3.94

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.1°

Pavilion angle40.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG818654313

Dimensions10.14 × 10.05 × 6.21 mm

L/W Ratio1.01

Girdle conditionFaceted

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 LG818654313

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: $24,432 NZD|Low: $3,774 NZD|High: $29,453 NZD|Avg: $9,916 NZD|-17.0%

Brilliant Earth

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

November 1, 2026

Retailer 5$3,774 NZD

Retailer 17$4,106 NZD

Retailer 18$4,226 NZD

Retailer 3$4,377 NZD

Retailer 14$4,675 NZD

Retailer 11$5,952 NZD

Retailer 7$6,018 NZD

Retailer 6$6,843 NZD

Retailer 12$6,964 NZD

Retailer 16$7,012 NZD

Retailer 13$10,166 NZD

Retailer 15$11,370 NZD

Retailer 8$11,719 NZD

Retailer 2$11,877 NZD

Retailer 9$14,726 NZD

Retailer 4$15,308 NZD

Retailer 10$16,125 NZD

Brilliant Earth$24,432 NZD

31 data points across 18 retailers

19 retailers$3,774 NZD to $24,432 NZD

Cheapest Retailer

$3,774 NZD

$2,127 USD

Retailer 2

$4,106 NZD

$2,314 USD

View

Retailer 3

$4,226 NZD

$2,382 USD

View

Final sale: no returns

Retailer 4

$4,377 NZD

$2,467 USD

View

Retailer 5

$4,587 NZD

$2,585 USD

View

Price last confirmed 21 days ago

Retailer 6

$4,675 NZD

$2,635 USD

View

Retailer 7

$5,952 NZD

£2,641 GBP

View

Retailer 8

$6,018 NZD

$3,392 USD

View

B+

Retailer 9

$6,843 NZD

$3,857 USD

View

B+

Retailer 10

$6,964 NZD

€3,738 EUR

View

B+

Retailer 11

$7,012 NZD

$3,952 USD

View

B+

Retailer 12

$10,166 NZD

ZAR 92,565 ZAR

View

B+

Retailer 13

$11,370 NZD

$6,408 USD

View

B+

Retailer 14

$11,719 NZD

$6,605 USD

View

B+

Retailer 15

$11,877 NZD

£5,271 GBP

View

B+

Retailer 16

$14,726 NZD

SGD 11,216 SGD

View

B+

Retailer 17

$15,308 NZD

$8,628 USD

View

B+

Retailer 18

$16,125 NZD

$9,088 USD

View

Most Expensive

Brilliant Earth

21433882A · Oct 31

$24,432 NZD

$13,770 USD

View

18 more retailers have this diamond

Prices start from $3,774 NZDSave up to $20,658 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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3.94ct Round

$3,774 NZD