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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 $2,019 USD
As of October 29, 2026
Save $13,721 USD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $15,740 USD 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 $2,019 to $15,740, a $13,721 spread on the same certified stone. Brilliant Earth lists it at $15,740. 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
Color
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: $15,740 USD|Low: $2,019 USD|High: $26,566 USD|Avg: $9,232 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 29, 2026
Retailer 2$2,019 USD
Retailer 10$2,510 USD
Retailer 3$3,453 USD
Retailer 15$3,533 USD
Retailer 17$3,553 USD
Retailer 8$4,140 USD
Retailer 4$4,463 USD
Retailer 6$5,210 USD
Retailer 7$5,606 USD
Retailer 14$6,439 USD
Retailer 16$6,970 USD
Retailer 11$7,051 USD
Retailer 5$7,137 USD
Retailer 13$10,605 USD
Retailer 12$13,890 USD
Brilliant Earth$15,740 USD
Retailer 9$26,566 USD

15 data points across 17 retailers

13 retailers$2,019 USD to $15,740 USD

A
Cheapest Retailer
-
$2,019 USD
A
Retailer 2
-
$2,510 USD
View
A
Retailer 3
-
$3,453 USD
View
A
Retailer 4
-
$3,533 USD
View
A
Retailer 5
-
$3,553 USD
View
A
Retailer 6
-
$4,463 USD
View
A
Retailer 7
-
$5,606 USD
View
Price last confirmed 35 days ago
B+
Retailer 8
-
$6,439 USD
View
B+
Retailer 9
-
$6,970 USD
View
B+
Retailer 10
-
$7,051 USD
£5,552 GBP
View
B
Retailer 11
-
$10,605 USD
View
B
Retailer 12
-
$13,890 USD
View
Most Expensive
B
Brilliant Earth
18495034Y · Oct 28
$15,740 USD
View
12 more retailers have this diamond
Prices start from $2,019 USDSave up to $13,721 USD

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
$2,019 USD