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Round|Lab Grown|IGI

4.09ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG790611940

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790611940

Diamond specifications and retailer prices

From $3,147 USD
As of October 29, 2026
Save $12,373 USD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,520 USD at Brilliant Earth · As of October 30, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611940 or 790611940. Listed at 23 retailers as of October 29, 2026, with prices from $3,147 to $15,520, a $12,373 spread on the same certified stone. Brilliant Earth lists it at $15,520. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611940
Dimensions10.30 × 10.38 × 6.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.30 mm10.38 mm4.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611940
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.1%

Caratlytics Score

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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: $15,520 USD|Low: $3,021 USD|High: $18,200 USD|Avg: $6,186 USD|-14.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
October 30, 2026
Retailer 17$3,147 USD
Retailer 7$3,423 USD
Retailer 9$3,524 USD
Retailer 6$3,599 USD
Retailer 3$3,650 USD
Retailer 10$3,650 USD
Retailer 14$3,650 USD
Retailer 8$4,561 USD
Retailer 2$4,827 USD
Retailer 16$5,137 USD
Retailer 4$5,668 USD
Retailer 13$5,828 USD
Retailer 15$7,215 USD
Retailer 11$7,767 USD
Retailer 18$9,105 USD
Retailer 12$9,301 USD
Retailer 5$12,284 USD
Brilliant Earth$15,520 USD

44 data points across 18 retailers

23 retailers$3,147 USD to $15,520 USD

A
Cheapest Retailer
-
$3,147 USD
A
Retailer 2
-
$3,423 USD
View
A
Retailer 3
-
$3,524 USD
View
Final sale: no returns
A
Retailer 4
-
$3,599 USD
View
A
Retailer 5
-
$3,650 USD
View
Retailer 6
-
$3,650 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
$3,650 USD
View
A
Retailer 8
-
$4,250 USD
HK$33,200 HKD
View
A
Retailer 9
-
$4,493 USD
View
A
Retailer 10
-
$4,561 USD
View
A
Retailer 11
-
$4,827 USD
£3,800 GBP
View
A
Retailer 12
-
$5,137 USD
View
A
Retailer 13
-
$5,668 USD
View
A
Retailer 14
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$5,828 USD
€5,550 EUR
View
Retailer 15
-
$7,215 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
$7,767 USD
ZAR 125,482 ZAR
View
B+
Retailer 17
-
$8,760 USD
View
B+
Retailer 18
-
$9,105 USD
View
B+
Retailer 19
-
$9,301 USD
£7,324 GBP
View
B+
Retailer 20
-
$10,123 USD
View
B
Retailer 21
-
$12,284 USD
SGD 16,600 SGD
View
B
Retailer 22
-
$12,743 USD
View
Most Expensive
B
Brilliant Earth
19074416A · Oct 30
$15,520 USD
View
22 more retailers have this diamond
Prices start from $3,147 USDSave up to $12,373 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
$3,147 USD