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 $3,028 AUD

$2,127 USD

As of October 29, 2026

Save $16,575 AUD (85%) vs most expensive(unlock to see where)

19 retailers carry this diamond

Most expensive: $19,603 AUD at Brilliant Earth · As of October 30, 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 $3,028 to $19,603, a $16,575 spread on the same certified stone. Brilliant Earth lists it at $19,603. 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: $19,603 AUD|Low: $3,294 AUD|High: $23,632 AUD|Avg: $8,944 AUD|-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

October 30, 2026

Retailer 13$3,294 AUD

Retailer 10$3,751 AUD

Retailer 2$4,815 AUD

Retailer 3$5,491 AUD

Retailer 9$5,602 AUD

Retailer 12$5,626 AUD

Retailer 7$8,157 AUD

Retailer 11$9,122 AUD

Retailer 4$9,403 AUD

Retailer 8$9,582 AUD

Retailer 5$11,816 AUD

Retailer 14$12,282 AUD

Retailer 6$12,938 AUD

Brilliant Earth$19,603 AUD

32 data points across 14 retailers

19 retailers$3,028 AUD to $19,603 AUD

Cheapest Retailer

$3,028 AUD

$2,127 USD

Retailer 2

$3,294 AUD

$2,314 USD

View

Retailer 3

$3,391 AUD

$2,382 USD

View

Final sale: no returns

Retailer 4

$3,512 AUD

$2,467 USD

View

Retailer 5

$3,680 AUD

$2,585 USD

View

Price last confirmed 20 days ago

Retailer 6

$3,751 AUD

$2,635 USD

View

Retailer 7

$4,815 AUD

£2,663 GBP

View

Retailer 8

$4,829 AUD

$3,392 USD

View

B+

Retailer 9

$5,491 AUD

$3,857 USD

View

B+

Retailer 10

$5,602 AUD

€3,748 EUR

View

B+

Retailer 11

$5,626 AUD

$3,952 USD

View

B+

Retailer 12

$8,157 AUD

ZAR 92,565 ZAR

View

B+

Retailer 13

$9,122 AUD

$6,408 USD

View

B+

Retailer 14

$9,403 AUD

$6,605 USD

View

B+

Retailer 15

$9,582 AUD

£5,300 GBP

View

B+

Retailer 16

$11,816 AUD

SGD 11,216 SGD

View

B+

Retailer 17

$12,282 AUD

$8,628 USD

View

B+

Retailer 18

$12,938 AUD

$9,088 USD

View

Most Expensive

Brilliant Earth

21433882A · Oct 30

$19,603 AUD

$13,770 USD

View

18 more retailers have this diamond

Prices start from $3,028 AUDSave up to $16,575 AUD

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

$3,028 AUD