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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 $4,023 SGD
$3,147 USD
As of October 29, 2026
Save $15,818 SGD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $19,841 SGD 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 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 $4,023 to $19,841, a $15,818 spread on the same certified stone. Brilliant Earth lists it at $19,841. 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
Colour
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

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: $19,841 SGD|Low: $3,862 SGD|High: $23,267 SGD|Avg: $7,933 SGD|-14.7%
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
Retailer 18
October 31, 2026
Retailer 17$4,023 SGD
Retailer 7$4,376 SGD
Retailer 9$4,505 SGD
Retailer 6$4,601 SGD
Retailer 3$4,666 SGD
Retailer 10$4,666 SGD
Retailer 14$4,666 SGD
Retailer 8$5,831 SGD
Retailer 11$6,170 SGD
Retailer 16$6,567 SGD
Retailer 4$7,246 SGD
Retailer 2$7,428 SGD
Retailer 15$9,224 SGD
Retailer 12$9,930 SGD
Retailer 18$11,640 SGD
Retailer 13$11,891 SGD
Retailer 5$15,704 SGD
Brilliant Earth$19,841 SGD

43 data points across 18 retailers

23 retailers$4,023 SGD to $19,841 SGD

A
Cheapest Retailer
-
$4,023 SGD
$3,147 USD
A
Retailer 2
-
$4,376 SGD
$3,423 USD
View
A
Retailer 3
-
$4,505 SGD
$3,524 USD
View
Final sale: no returns
A
Retailer 4
-
$4,601 SGD
$3,599 USD
View
A
Retailer 5
-
$4,666 SGD
$3,650 USD
View
Retailer 6
-
$4,666 SGD
$3,650 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$4,666 SGD
$3,650 USD
View
A
Retailer 8
-
$5,433 SGD
HK$33,200 HKD
View
A
Retailer 9
-
$5,744 SGD
$4,493 USD
View
A
Retailer 10
-
$5,831 SGD
$4,561 USD
View
A
Retailer 11
-
$6,170 SGD
£3,800 GBP
View
A
Retailer 12
-
$6,567 SGD
$5,137 USD
View
A
Retailer 13
-
$7,246 SGD
$5,668 USD
View
A
Retailer 14
-
$7,428 SGD
€5,534 EUR
View
Retailer 15
-
$9,224 SGD
$7,215 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
$9,930 SGD
ZAR 125,482 ZAR
View
B+
Retailer 17
-
$11,199 SGD
$8,760 USD
View
B+
Retailer 18
-
$11,640 SGD
$9,105 USD
View
B+
Retailer 19
-
$11,891 SGD
£7,324 GBP
View
B+
Retailer 20
-
$12,941 SGD
$10,123 USD
View
B
Retailer 21
-
$15,704 SGD
View
B
Retailer 22
-
$16,291 SGD
$12,743 USD
View
Most Expensive
B
Brilliant Earth
19074416A · Oct 31
$19,841 SGD
$15,520 USD
View
22 more retailers have this diamond
Prices start from $4,023 SGDSave up to $15,818 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
4.09ct Round
$4,023 SGD