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Oval|Lab Grown|IGI

4.12ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG584379811

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG584379811

Diamond specifications and retailer prices

From $989 AUD
$695 USD
As of October 31, 2026
Save $2,997 AUD (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,007 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 4.12ct lab-grown oval diamond

This 4.12ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG584379811 or 584379811. Listed at 15 retailers as of October 30, 2026, with a 303% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.12
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG584379811
Dimensions12.48 × 9.10 × 5.85 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
Top View
12.48 mm9.10 mm4.12 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG584379811
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 64.3%

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 31
Current: $4,007 AUD|Low: $709 AUD|High: $7,801 AUD|Avg: $2,010 AUD|-1.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$709 AUD
Retailer 12$784 AUD
Retailer 6$989 AUD
Retailer 11$1,233 AUD
Retailer 2$1,242 AUD
Retailer 5$1,298 AUD
Retailer 10$1,379 AUD
Retailer 4$1,980 AUD
Retailer 9$2,110 AUD
Retailer 8$2,898 AUD
Retailer 7$3,986 AUD
Rare Carat$4,007 AUD

34 data points across 12 retailers

15 retailers$989 AUD to $3,986 AUD

Retailer 1
-
$634 AUD
$445 USD
Price last confirmed 38 days ago
Retailer 2
-
$709 AUD
$498 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$774 AUD
$544 USD
View
Price last confirmed 36 days ago
Retailer 4
-
$784 AUD
$551 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$989 AUD
$695 USD
View
B+
Retailer 6
-
$1,233 AUD
$866 USD
View
A
Retailer 7
-
$1,242 AUD
€831 EUR
View
A
Retailer 8
-
$1,298 AUD
£718 GBP
View
A
Retailer 9
-
$1,379 AUD
$969 USD
View
B+
Retailer 10
-
$1,980 AUD
$1,391 USD
View
B+
Retailer 11
-
$2,110 AUD
$1,482 USD
View
Retailer 12
-
$2,524 AUD
$1,773 USD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$2,898 AUD
£1,603 GBP
View
B
Retailer 14
-
$3,986 AUD
$2,800 USD
View
Most Expensive
Rare Carat
402086 · Oct 21
$4,007 AUD
$2,815 USD
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from $989 AUDSave up to $2,997 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
4.12ct Oval
$989 AUD