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Round|Lab Grown|IGI

4.09ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG758581881

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758581881

Diamond specifications and retailer prices

From $1,758 USD
As of October 31, 2026
Save $7,562 USD (81%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $9,320 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.09ct lab-grown round diamond

This 4.09ct 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 LG758581881 or 758581881. Listed at 27 retailers as of October 31, 2026, with prices from $1,758 to $9,320, a $7,562 spread on the same certified stone. Brilliant Earth lists it at $9,320. 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

4.09
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758581881
Dimensions10.20 × 10.27 × 6.34 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 mm10.27 mm4.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758581881
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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: $9,320 USD|Low: $1,758 USD|High: $9,330 USD|Avg: $4,280 USD|-0.1%
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$1,758 USD
Retailer 12$1,995 USD
Retailer 8$2,144 USD
Retailer 10$2,551 USD
Retailer 7$2,740 USD
Retailer 16$2,879 USD
Retailer 13$2,909 USD
Retailer 14$3,880 USD
Retailer 2$3,905 USD
Retailer 3$3,971 USD
Retailer 5$4,736 USD
Retailer 4$4,912 USD
Retailer 15$5,234 USD
Retailer 17$5,310 USD
Retailer 6$6,404 USD
Retailer 9$6,520 USD
Brilliant Earth$9,320 USD

32 data points across 17 retailers

27 retailers$1,758 USD to $9,320 USD

Retailer 1
-
$1,648 USD
Price last confirmed 21 days ago
Retailer 2
-
$1,687 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$1,758 USD
View
Final sale: no returns
Retailer 4
-
$1,835 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$1,912 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$1,912 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$1,930 USD
View
Price last confirmed 36 days ago
A
Retailer 8
-
$1,995 USD
View
A
Retailer 9
-
$2,144 USD
View
A
Retailer 10
-
$2,551 USD
£2,008 GBP
View
A
Retailer 11
-
$2,740 USD
View
A
Retailer 12
-
$2,879 USD
€2,742 EUR
View
A
Retailer 13
-
$2,909 USD
View
A
Retailer 14
-
$3,297 USD
View
Retailer 15
-
$3,584 USD
View
Price last confirmed 24 days ago
Retailer 16
-
$3,668 USD
View
Price last confirmed 40 days ago
A
Retailer 17
-
$3,880 USD
ZAR 62,676 ZAR
View
A
Retailer 18
-
$3,905 USD
A$6,007 AUD
View
A
Retailer 19
-
$3,971 USD
View
A
Retailer 20
-
$4,684 USD
View
A
Retailer 21
-
$4,736 USD
View
A
Retailer 22
-
$4,912 USD
View
A
Retailer 23
-
$5,234 USD
£4,121 GBP
View
A
Retailer 24
-
$5,310 USD
View
B+
Retailer 25
-
$6,404 USD
View
Retailer 26
-
$6,520 USD
View
Price last confirmed 14 days ago
Most Expensive
B+
Brilliant Earth
17110995A · Oct 31
$9,320 USD
View
26 more retailers have this diamond
Prices start from $1,758 USDSave up to $7,562 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
4.09ct Round
$1,758 USD