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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 $1,233 NZD
$695 USD
As of October 31, 2026
Save $3,735 NZD (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,995 NZD 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 31, 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: $4,995 NZD|Low: $884 NZD|High: $9,723 NZD|Avg: $2,515 NZD|-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$884 NZD
Retailer 12$978 NZD
Retailer 6$1,233 NZD
Retailer 11$1,537 NZD
Retailer 2$1,548 NZD
Retailer 5$1,618 NZD
Retailer 10$1,719 NZD
Retailer 4$2,468 NZD
Retailer 9$2,630 NZD
Retailer 8$3,612 NZD
Retailer 7$4,968 NZD
Rare Carat$4,995 NZD

33 data points across 12 retailers

15 retailers$1,233 NZD to $4,968 NZD

Retailer 1
-
$790 NZD
$445 USD
Price last confirmed 39 days ago
Retailer 2
-
$884 NZD
$498 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$965 NZD
$544 USD
View
Price last confirmed 37 days ago
Retailer 4
-
$978 NZD
$551 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$1,233 NZD
$695 USD
View
B+
Retailer 6
-
$1,537 NZD
$866 USD
View
A
Retailer 7
-
$1,548 NZD
€831 EUR
View
A
Retailer 8
-
$1,618 NZD
£718 GBP
View
A
Retailer 9
-
$1,719 NZD
$969 USD
View
B+
Retailer 10
-
$2,468 NZD
$1,391 USD
View
B+
Retailer 11
-
$2,630 NZD
$1,482 USD
View
Retailer 12
-
$3,146 NZD
$1,773 USD
View
Price last confirmed 36 days ago
B
Retailer 13
-
$3,612 NZD
£1,603 GBP
View
B
Retailer 14
-
$4,968 NZD
$2,800 USD
View
Most Expensive
Rare Carat
402086 · Oct 21
$4,995 NZD
$2,815 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from $1,233 NZDSave up to $3,735 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.

A
4.12ct Oval
$1,233 NZD