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Round|Lab Grown|IGI

4.08ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG780668579

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780668579

Diamond specifications and retailer prices

From $1,841 USD
As of October 31, 2026
Save $7,469 USD (80%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $9,310 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.08ct lab-grown round diamond

This 4.08ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780668579 or 780668579. Listed at 27 retailers as of October 31, 2026, with prices from $1,841 to $9,310, a $7,469 spread on the same certified stone. Brilliant Earth lists it at $9,310. 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

4.08
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780668579
Dimensions10.20 × 10.28 × 6.31 mm
L/W Ratio1.01
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
10.20 mm10.28 mm4.08 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780668579
Side View
Table 57.0%Crown 34.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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 31
Current: $9,310 USD|Low: $1,841 USD|High: $9,590 USD|Avg: $4,545 USD|-2.9%
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
November 1, 2026
Retailer 11$1,841 USD
Retailer 12$2,075 USD
Retailer 7$2,222 USD
Retailer 10$2,671 USD
Retailer 6$2,868 USD
Retailer 13$2,967 USD
Retailer 15$3,015 USD
Retailer 17$3,979 USD
Retailer 14$4,060 USD
Retailer 2$4,087 USD
Retailer 4$4,960 USD
Retailer 3$5,141 USD
Retailer 16$5,533 USD
Retailer 9$5,900 USD
Retailer 8$6,510 USD
Retailer 5$6,697 USD
Brilliant Earth$9,310 USD

32 data points across 17 retailers

27 retailers$1,841 USD to $9,310 USD

Retailer 1
-
$1,760 USD
Price last confirmed 21 days ago
Retailer 2
-
$1,798 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$1,841 USD
View
Final sale: no returns
Retailer 4
-
$1,957 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$2,041 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$2,041 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$2,057 USD
View
Price last confirmed 36 days ago
A
Retailer 8
-
$2,075 USD
View
A
Retailer 9
-
$2,222 USD
View
A
Retailer 10
-
$2,671 USD
£2,103 GBP
View
A
Retailer 11
-
$2,868 USD
View
A
Retailer 12
-
$2,967 USD
View
A
Retailer 13
-
$3,015 USD
€2,871 EUR
View
A
Retailer 14
-
$3,434 USD
View
Retailer 15
-
$3,827 USD
View
Price last confirmed 24 days ago
Retailer 16
-
$3,910 USD
View
Price last confirmed 40 days ago
A
Retailer 17
-
$3,979 USD
View
A
Retailer 18
-
$4,060 USD
ZAR 65,595 ZAR
View
A
Retailer 19
-
$4,087 USD
A$6,287 AUD
View
A
Retailer 20
-
$4,907 USD
View
A
Retailer 21
-
$4,960 USD
View
A
Retailer 22
-
$5,141 USD
View
A
Retailer 23
-
$5,533 USD
View
Retailer 24
-
$5,900 USD
£4,646 GBP
View
Price last confirmed 20 days ago
Retailer 25
-
$6,510 USD
View
Price last confirmed 14 days ago
B+
Retailer 26
-
$6,697 USD
View
Most Expensive
B+
Brilliant Earth
18156442A · Oct 31
$9,310 USD
View
26 more retailers have this diamond
Prices start from $1,841 USDSave up to $7,469 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
4.08ct Round
$1,841 USD