Radiant|Lab Grown|IGI

4.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG628419062

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG628419062

Diamond specifications and retailer prices

From $2,281 CAD
£1,283 GBP
As of October 30, 2026
Save $18,139 CAD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,420 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.15ct lab-grown radiant diamond

This 4.15ct lab-grown radiant 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 LG628419062 or 628419062. Listed at 22 retailers as of October 28, 2026, with prices from $2,281 to $20,420, a $18,139 spread on the same certified stone. Brilliant Earth lists it at $20,420. 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

4.15
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628419062
Dimensions11.37 × 8.12 × 5.22 mm
L/W Ratio1.40
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
11.37 mm8.12 mm4.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628419062
Side View
Table 60.0%Crown 44.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A+
Exceptional
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: $20,420 CAD|Low: $2,281 CAD|High: $20,434 CAD|Avg: $5,607 CAD|-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
Retailer 18
Retailer 19
October 30, 2026
Retailer 2$2,281 CAD
Retailer 5$2,354 CAD
Retailer 6$2,635 CAD
Retailer 13$2,731 CAD
Retailer 3$2,785 CAD
Retailer 11$3,086 CAD
Retailer 12$3,870 CAD
Retailer 8$3,905 CAD
Retailer 10$4,364 CAD
Retailer 16$5,117 CAD
Retailer 9$5,377 CAD
Retailer 19$5,652 CAD
Retailer 14$5,811 CAD
Retailer 4$7,356 CAD
Retailer 18$7,757 CAD
Retailer 15$7,839 CAD
Retailer 17$7,902 CAD
Retailer 7$9,580 CAD
Brilliant Earth$20,420 CAD

21 data points across 19 retailers

22 retailers$2,281 CAD to $20,420 CAD

A+
Cheapest Retailer
-
$2,281 CAD
£1,283 GBP
A
Retailer 2
-
$2,354 CAD
$1,682 USD
View
A
Retailer 3
-
$2,635 CAD
$1,883 USD
View
Final sale: no returns
A
Retailer 4
-
$2,731 CAD
$1,951 USD
View
A
Retailer 5
-
$2,785 CAD
$1,990 USD
View
Retailer 6
-
$3,086 CAD
$2,205 USD
View
Price last confirmed 19 days ago
Retailer 7
-
$3,816 CAD
HK$21,300 HKD
View
Price last confirmed 56 days ago
A
Retailer 8
-
$3,870 CAD
£2,177 GBP
View
A
Retailer 9
-
$3,905 CAD
$2,790 USD
View
A
Retailer 10
-
$4,364 CAD
$3,118 USD
View
A
Retailer 11
-
$5,117 CAD
$3,656 USD
View
A
Retailer 12
-
$5,377 CAD
€3,659 EUR
View
Retailer 13
-
$5,395 CAD
$3,855 USD
View
Price last confirmed 24 days ago
A
Retailer 14
-
$5,652 CAD
£3,180 GBP
View
A
Retailer 15
-
$5,811 CAD
ZAR 67,077 ZAR
View
A
Retailer 16
-
$7,356 CAD
$5,256 USD
View
A
Retailer 17
-
$7,757 CAD
$5,542 USD
View
A
Retailer 18
-
$7,839 CAD
£4,410 GBP
View
A
Retailer 19
-
$7,902 CAD
$5,646 USD
View
Retailer 20
-
$9,209 CAD
$6,580 USD
View
Price last confirmed 31 days ago
A
Retailer 21
-
$9,580 CAD
$6,845 USD
View
Most Expensive
B
Brilliant Earth
14086409A · Oct 28
$20,420 CAD
$14,590 USD
View
21 more retailers have this diamond
Prices start from $2,281 CADSave up to $18,139 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+
4.15ct Radiant
$2,281 CAD