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Oval|Lab Grown|IGI

4.00ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG780661620

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG780661620

Diamond specifications and retailer prices

From $2,588 SGD
$2,019 USD
As of October 29, 2026
Save $17,586 SGD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,174 SGD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780661620 or 780661620. Listed at 13 retailers as of October 28, 2026, with prices from $2,588 to $20,174, a $17,586 spread on the same certified stone. Brilliant Earth lists it at $20,174. 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

4.00
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661620
Dimensions12.83 × 8.78 × 5.39 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
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
12.83 mm8.78 mm4.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661620
Side View
Table 57.0%Crown 36.4°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 61.4%

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: Oct 29
Current: $20,174 SGD|Low: $2,588 SGD|High: $34,050 SGD|Avg: $11,663 SGD|-3.0%
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
Retailer 17
October 30, 2026
Retailer 10$2,588 SGD
Retailer 11$3,217 SGD
Retailer 4$4,426 SGD
Retailer 16$4,528 SGD
Retailer 3$4,554 SGD
Retailer 8$5,306 SGD
Retailer 2$5,360 SGD
Retailer 6$6,678 SGD
Retailer 7$7,185 SGD
Retailer 15$8,252 SGD
Retailer 17$8,933 SGD
Retailer 12$9,037 SGD
Retailer 5$9,147 SGD
Retailer 14$13,592 SGD
Retailer 13$17,803 SGD
Brilliant Earth$20,174 SGD
Retailer 9$34,050 SGD

16 data points across 17 retailers

13 retailers$2,588 SGD to $20,174 SGD

A
Cheapest Retailer
-
$2,588 SGD
$2,019 USD
A
Retailer 2
-
$3,217 SGD
$2,510 USD
View
A
Retailer 3
-
$4,426 SGD
$3,453 USD
View
A
Retailer 4
-
$4,528 SGD
$3,533 USD
View
A
Retailer 5
-
$4,554 SGD
$3,553 USD
View
A
Retailer 6
-
$5,360 SGD
$4,182 USD
View
Retailer 7
-
$7,185 SGD
$5,606 USD
View
Price last confirmed 36 days ago
B+
Retailer 8
-
$8,252 SGD
$6,439 USD
View
B+
Retailer 9
-
$8,933 SGD
$6,970 USD
View
B+
Retailer 10
-
$9,037 SGD
£5,552 GBP
View
B+
Retailer 11
-
$13,592 SGD
$10,605 USD
View
B
Retailer 12
-
$17,803 SGD
$13,890 USD
View
Most Expensive
B
Brilliant Earth
18495034Y · Oct 28
$20,174 SGD
$15,740 USD
View
12 more retailers have this diamond
Prices start from $2,588 SGDSave up to $17,586 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
4.00ct Oval
$2,588 SGD