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Oval|Lab Grown|IGI

4.12ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG800631859

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG800631859

Diamond specifications and retailer prices

From $5,591 NZD
$3,151 USD
As of November 1, 2026
Save $19,232 NZD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,822 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 4.12ct lab-grown oval diamond

This 4.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800631859 or 800631859. Listed at 10 retailers as of November 1, 2026, with prices from $5,591 to $24,822, a $19,232 spread on the same certified stone. Brilliant Earth lists it at $24,822. 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

4.12
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800631859
Dimensions13.15 × 8.97 × 5.54 mm
L/W Ratio1.47
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
Top View
13.15 mm8.97 mm4.12 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800631859
Side View
Table 59.0%Crown 35.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.8%

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: Nov 1
Current: $24,822 NZD|Low: $5,591 NZD|High: $36,976 NZD|Avg: $13,194 NZD|-32.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$5,591 NZD
Retailer 9$6,881 NZD
Retailer 2$7,407 NZD
Retailer 5$7,839 NZD
Retailer 7$9,555 NZD
Retailer 4$10,051 NZD
Retailer 10$13,007 NZD
Retailer 3$14,683 NZD
Retailer 8$19,122 NZD
Brilliant Earth$24,822 NZD

31 data points across 10 retailers

10 retailers$5,591 NZD to $24,822 NZD

A
Cheapest Retailer
-
$5,591 NZD
$3,151 USD
Retailer 2
-
$6,881 NZD
HK$30,300 HKD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$7,407 NZD
£3,287 GBP
View
A
Retailer 4
-
$7,839 NZD
$4,418 USD
View
A
Retailer 5
-
$9,555 NZD
$5,385 USD
View
A
Retailer 6
-
$10,051 NZD
€5,395 EUR
View
Retailer 7
-
$13,007 NZD
$7,331 USD
View
Price last confirmed 84 days ago
B+
Retailer 8
-
$14,683 NZD
£6,516 GBP
View
B
Retailer 9
-
$19,122 NZD
$10,777 USD
View
Most Expensive
B
Brilliant Earth
19994644A · Nov 1
$24,822 NZD
$13,990 USD
View
9 more retailers have this diamond
Prices start from $5,591 NZDSave up to $19,232 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
$5,591 NZD