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Round|Lab Grown|IGI

4.05ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG811634833

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811634833

Diamond specifications and retailer prices

From $4,784 CAD
$3,425 USD
As of October 30, 2026
Save $14,856 CAD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,640 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.05ct lab-grown round diamond

This 4.05ct 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 LG811634833 or 811634833. Listed at 14 retailers as of October 30, 2026, with prices from $4,784 to $19,640, a $14,856 spread on the same certified stone. Brilliant Earth lists it at $19,640. 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

4.05
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634833
Dimensions10.27 × 10.32 × 6.22 mm
L/W Ratio1.00
Girdle conditionFaceted
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
10.27 mm10.32 mm4.05 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634833
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $19,640 CAD|Low: $4,784 CAD|High: $28,821 CAD|Avg: $12,481 CAD|-22.0%
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
October 31, 2026
Retailer 12$4,784 CAD
Retailer 3$5,793 CAD
Retailer 10$6,085 CAD
Retailer 7$6,393 CAD
Retailer 14$7,141 CAD
Retailer 2$7,570 CAD
Retailer 11$9,701 CAD
Retailer 8$10,111 CAD
Retailer 5$11,931 CAD
Retailer 9$12,104 CAD
Retailer 13$12,446 CAD
Retailer 6$16,546 CAD
Retailer 4$18,382 CAD
Brilliant Earth$19,640 CAD

43 data points across 14 retailers

14 retailers$4,784 CAD to $19,640 CAD

A
Cheapest Retailer
-
$4,784 CAD
$3,425 USD
A
Retailer 2
-
$5,793 CAD
HK$32,400 HKD
View
A
Retailer 3
-
$6,085 CAD
$4,356 USD
View
A
Retailer 4
-
$6,393 CAD
£3,603 GBP
View
A
Retailer 5
-
$7,141 CAD
$5,112 USD
View
A
Retailer 6
-
$7,570 CAD
€5,161 EUR
View
Retailer 7
-
$9,701 CAD
$6,945 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
$10,111 CAD
ZAR 116,936 ZAR
View
B+
Retailer 9
-
$11,931 CAD
$8,541 USD
View
B+
Retailer 10
-
$12,104 CAD
£6,823 GBP
View
B+
Retailer 11
-
$12,446 CAD
$8,910 USD
View
B
Retailer 12
-
$16,546 CAD
$11,845 USD
View
B
Retailer 13
-
$18,382 CAD
$13,159 USD
View
Most Expensive
B
Brilliant Earth
21144075A · Oct 31
$19,640 CAD
$14,060 USD
View
13 more retailers have this diamond
Prices start from $4,784 CADSave up to $14,856 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
4.05ct Round
$4,784 CAD