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Radiant|Lab Grown|IGI

5.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG648486284

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

Certificate IGI LG648486284

Diamond specifications and retailer prices

From $501 USD
As of October 28, 2026
Save $4,159 USD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,660 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648486284 or 648486284. Listed at 15 retailers as of October 28, 2026, with prices from $501 to $4,660, a $4,159 spread on the same certified stone. Brilliant Earth lists it at $4,660. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648486284
Dimensions11.98 × 8.39 × 5.75 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm8.39 mm5.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648486284
Side View
Table 66.0%Crown 44.1°Girdle: MediumPavilion 35.4°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
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 28
Current: $4,660 USD|Low: $501 USD|High: $5,090 USD|Avg: $1,522 USD|-8.4%
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
October 30, 2026
Retailer 16$501 USD
Retailer 12$561 USD
Retailer 4$622 USD
Retailer 5$622 USD
Retailer 15$654 USD
Retailer 9$760 USD
Retailer 8$941 USD
Retailer 2$1,034 USD
Retailer 6$1,060 USD
Retailer 11$1,065 USD
Retailer 13$1,604 USD
Retailer 3$1,635 USD
Retailer 7$1,990 USD
Retailer 10$2,598 USD
Retailer 14$2,945 USD
Brilliant Earth$4,660 USD

39 data points across 16 retailers

15 retailers$501 USD to $4,660 USD

A
Cheapest Retailer
-
$501 USD
A
Retailer 2
-
$561 USD
View
A
Retailer 3
-
$622 USD
View
Retailer 4
-
$622 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$654 USD
£515 GBP
View
Price last confirmed 13 days ago
A
Retailer 6
-
$760 USD
View
A
Retailer 7
-
$1,034 USD
£815 GBP
View
A
Retailer 8
-
$1,060 USD
View
A
Retailer 9
-
$1,065 USD
€1,014 EUR
View
B+
Retailer 10
-
$1,604 USD
View
B+
Retailer 11
-
$1,635 USD
View
B+
Retailer 12
-
$1,990 USD
View
B
Retailer 13
-
$2,598 USD
£2,046 GBP
View
B
Retailer 14
-
$2,945 USD
View
Most Expensive
B
Brilliant Earth
11435167A · Oct 29
$4,660 USD
View
14 more retailers have this diamond
Prices start from $501 USDSave up to $4,159 USD

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
5.05ct Radiant
$501 USD