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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 $4,028 SGD
$3,151 USD
As of November 1, 2026
Save $15,531 SGD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $19,560 SGD at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from $4,028 to $19,560, a $15,531 spread on the same certified stone. Brilliant Earth lists it at $19,560. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $19,560 SGD|Low: $4,028 SGD|High: $26,642 SGD|Avg: $9,544 SGD|-26.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$4,028 SGD
Retailer 9$4,958 SGD
Retailer 3$5,293 SGD
Retailer 5$5,648 SGD
Retailer 7$6,884 SGD
Retailer 4$7,242 SGD
Retailer 10$9,372 SGD
Retailer 2$10,579 SGD
Retailer 8$13,777 SGD
Brilliant Earth$19,560 SGD

30 data points across 10 retailers

10 retailers$4,028 SGD to $19,560 SGD

A
Cheapest Retailer
-
$4,028 SGD
$3,151 USD
Retailer 2
-
$4,958 SGD
HK$30,300 HKD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$5,293 SGD
£3,260 GBP
View
A
Retailer 4
-
$5,648 SGD
$4,418 USD
View
A
Retailer 5
-
$6,884 SGD
$5,385 USD
View
A
Retailer 6
-
$7,242 SGD
€5,395 EUR
View
Retailer 7
-
$9,372 SGD
$7,331 USD
View
Price last confirmed 83 days ago
B+
Retailer 8
-
$10,579 SGD
£6,516 GBP
View
B+
Retailer 9
-
$13,777 SGD
$10,777 USD
View
Most Expensive
B
Brilliant Earth
19994644A · Oct 31
$19,560 SGD
$15,300 USD
View
9 more retailers have this diamond
Prices start from $4,028 SGDSave up to $15,531 SGD

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
$4,028 SGD