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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 $4,396 CAD
$3,147 USD
As of October 29, 2026
Save $17,284 CAD (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $21,680 CAD 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 $4,396 to $21,680, a $17,284 spread on the same certified stone. Brilliant Earth lists it at $21,680. 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: $21,680 CAD|Low: $4,220 CAD|High: $25,424 CAD|Avg: $8,668 CAD|-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$4,396 CAD
Retailer 7$4,782 CAD
Retailer 9$4,923 CAD
Retailer 6$5,027 CAD
Retailer 3$5,099 CAD
Retailer 10$5,099 CAD
Retailer 14$5,099 CAD
Retailer 8$6,371 CAD
Retailer 11$6,742 CAD
Retailer 16$7,176 CAD
Retailer 4$7,918 CAD
Retailer 2$8,117 CAD
Retailer 15$10,079 CAD
Retailer 12$10,850 CAD
Retailer 18$12,719 CAD
Retailer 13$12,993 CAD
Retailer 5$17,160 CAD
Brilliant Earth$21,680 CAD

43 data points across 18 retailers

23 retailers$4,396 CAD to $21,680 CAD

A
Cheapest Retailer
-
$4,396 CAD
$3,147 USD
A
Retailer 2
-
$4,782 CAD
$3,423 USD
View
A
Retailer 3
-
$4,923 CAD
$3,524 USD
View
Final sale: no returns
A
Retailer 4
-
$5,027 CAD
$3,599 USD
View
A
Retailer 5
-
$5,099 CAD
$3,650 USD
View
Retailer 6
-
$5,099 CAD
$3,650 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$5,099 CAD
$3,650 USD
View
A
Retailer 8
-
$5,936 CAD
HK$33,200 HKD
View
A
Retailer 9
-
$6,276 CAD
$4,493 USD
View
A
Retailer 10
-
$6,371 CAD
$4,561 USD
View
A
Retailer 11
-
$6,742 CAD
£3,800 GBP
View
A
Retailer 12
-
$7,176 CAD
$5,137 USD
View
A
Retailer 13
-
$7,918 CAD
$5,668 USD
View
A
Retailer 14
-
$8,117 CAD
€5,534 EUR
View
Retailer 15
-
$10,079 CAD
$7,215 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$10,850 CAD
ZAR 125,482 ZAR
View
B+
Retailer 17
-
$12,237 CAD
$8,760 USD
View
B+
Retailer 18
-
$12,719 CAD
$9,105 USD
View
B+
Retailer 19
-
$12,993 CAD
£7,324 GBP
View
B+
Retailer 20
-
$14,141 CAD
$10,123 USD
View
B
Retailer 21
-
$17,160 CAD
SGD 16,600 SGD
View
B
Retailer 22
-
$17,801 CAD
$12,743 USD
View
Most Expensive
B
Brilliant Earth
19074416A · Oct 31
$21,680 CAD
$15,520 USD
View
22 more retailers have this diamond
Prices start from $4,396 CADSave up to $17,284 CAD

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
$4,396 CAD