Radiant|Lab Grown|IGI

4.91ct E SI2 Radiant Lab Grown Diamond

VG • E/SI2 • IGI LG840612369

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

Certificate IGI LG840612369

Diamond specifications and retailer prices

From $1,144 CAD
HK$6,400 HKD
As of October 30, 2026
Save $7,000 CAD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,144 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.91ct lab-grown radiant diamond

This 4.91ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG840612369 or 840612369. Listed at 12 retailers as of October 29, 2026, with prices from $1,144 to $8,144, a $7,000 spread on the same certified stone. Brilliant Earth lists it at $8,144. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.91
Carat
E
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612369
Dimensions12.13 × 8.19 × 5.56 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.13 mm8.19 mm4.91 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840612369
Side View
Table 68.0%Crown 46.8°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 67.9%

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 30
Current: $8,144 CAD|Low: $910 CAD|High: $8,144 CAD|Avg: $2,689 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 8$910 CAD
Retailer 11$947 CAD
Retailer 5$1,144 CAD
Retailer 7$1,520 CAD
Retailer 10$1,611 CAD
Retailer 2$1,633 CAD
Retailer 3$2,359 CAD
Retailer 9$2,605 CAD
Retailer 6$3,897 CAD
Retailer 4$4,565 CAD
Brilliant Earth$8,144 CAD

22 data points across 11 retailers

12 retailers$1,144 CAD to $8,144 CAD

Retailer 1
-
$847 CAD
$606 USD
Price last confirmed 22 days ago
Retailer 2
-
$910 CAD
£513 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
$1,050 CAD
$752 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$1,144 CAD
HK$6,400 HKD
View
A
Retailer 5
-
$1,520 CAD
€1,036 EUR
View
B
Retailer 6
-
$1,611 CAD
$1,153 USD
View
A
Retailer 7
-
$1,633 CAD
£921 GBP
View
B+
Retailer 8
-
$2,359 CAD
$1,689 USD
View
B+
Retailer 9
-
$2,605 CAD
$1,865 USD
View
B
Retailer 10
-
$3,897 CAD
$2,790 USD
View
B
Retailer 11
-
$4,565 CAD
£2,573 GBP
View
Most Expensive
C
Brilliant Earth
21808458A · Oct 29
$8,144 CAD
$5,830 USD
View
11 more retailers have this diamond
Prices start from $1,144 CADSave up to $7,000 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
4.91ct Radiant
$1,144 CAD