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 €733 EUR
HK$6,400 HKD
As of October 30, 2026
Save €3,232 EUR (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,965 EUR at Brilliant Earth · As of October 30, 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 30, 2026, with prices from €733 to €3,965, a €3,232 spread on the same certified stone. Brilliant Earth lists it at €3,965. 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
Colour
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: €3,965 EUR|Low: €583 EUR|High: €5,218 EUR|Avg: €1,716 EUR|-24.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 8€583 EUR
Retailer 11€607 EUR
Retailer 5€733 EUR
Retailer 7€974 EUR
Retailer 10€1,032 EUR
Retailer 2€1,047 EUR
Retailer 3€1,512 EUR
Retailer 9€1,669 EUR
Retailer 6€2,497 EUR
Retailer 4€2,925 EUR
Brilliant Earth€3,965 EUR

23 data points across 11 retailers

12 retailers€733 EUR to €3,965 EUR

Retailer 1
-
€542 EUR
$606 USD
Price last confirmed 22 days ago
Retailer 2
-
€583 EUR
£513 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
€673 EUR
$752 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
€733 EUR
HK$6,400 HKD
View
A
Retailer 5
-
€974 EUR
View
B
Retailer 6
-
€1,032 EUR
$1,153 USD
View
A
Retailer 7
-
€1,047 EUR
£921 GBP
View
B+
Retailer 8
-
€1,512 EUR
$1,689 USD
View
B+
Retailer 9
-
€1,669 EUR
$1,865 USD
View
B
Retailer 10
-
€2,497 EUR
$2,790 USD
View
B
Retailer 11
-
€2,925 EUR
£2,573 GBP
View
Most Expensive
B
Brilliant Earth
21808458A · Oct 30
€3,965 EUR
$4,430 USD
View
11 more retailers have this diamond
Prices start from €733 EURSave up to €3,232 EUR

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
€733 EUR