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Round|Lab Grown|IGI

4.00ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • IGI LG819602247

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819602247

Diamond specifications and retailer prices

From $642 AUD
$451 USD
As of October 26, 2026
Save $2,661 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,303 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4ct lab-grown round diamond

This 4ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819602247 or 819602247. Listed at 16 retailers as of October 26, 2026, with prices from $642 to $3,303, a $2,661 spread on the same certified stone. Brilliant Earth lists it at $3,303. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.00
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819602247
Dimensions10.29 × 10.22 × 6.11 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.29 mm10.22 mm4.00 ctG / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819602247
Side View
Table 62.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A
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 26
Current: $3,303 AUD|Low: $616 AUD|High: $6,292 AUD|Avg: $1,850 AUD|-47.5%
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
October 31, 2026
Retailer 16$642 AUD
Retailer 3$719 AUD
Retailer 5$796 AUD
Retailer 11$856 AUD
Retailer 12$990 AUD
Retailer 10$1,197 AUD
Retailer 15$1,248 AUD
Retailer 4$1,276 AUD
Retailer 13$1,304 AUD
Retailer 9$1,889 AUD
Retailer 8$2,019 AUD
Retailer 2$2,525 AUD
Retailer 6$2,557 AUD
Retailer 7$2,714 AUD
Retailer 14$2,925 AUD
Brilliant Earth$3,303 AUD

27 data points across 16 retailers

16 retailers$642 AUD to $3,303 AUD

A
Cheapest Retailer
-
$642 AUD
$451 USD
A
Retailer 2
-
$719 AUD
$505 USD
View
A
Retailer 3
-
$796 AUD
$559 USD
View
A
Retailer 4
-
$856 AUD
HK$4,700 HKD
View
A
Retailer 5
-
$990 AUD
£548 GBP
View
A
Retailer 6
-
$1,197 AUD
€801 EUR
View
B+
Retailer 7
-
$1,248 AUD
$877 USD
View
A
Retailer 8
-
$1,276 AUD
$896 USD
View
A
Retailer 9
-
$1,304 AUD
£722 GBP
View
B+
Retailer 10
-
$1,889 AUD
$1,327 USD
View
B+
Retailer 11
-
$2,019 AUD
$1,418 USD
View
B
Retailer 12
-
$2,525 AUD
SGD 2,397 SGD
View
B
Retailer 13
-
$2,557 AUD
$1,796 USD
View
Retailer 14
-
$2,714 AUD
$1,906 USD
View
Price last confirmed 75 days ago
B
Retailer 15
-
$2,925 AUD
£1,618 GBP
View
Most Expensive
B
Brilliant Earth
20782384A · Oct 30
$3,303 AUD
$2,320 USD
View
15 more retailers have this diamond
Prices start from $642 AUDSave up to $2,661 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.

A
4.00ct Round
$642 AUD