Radiant|Lab Grown|IGI

5.06ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG663411510

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

Certificate IGI LG663411510

Diamond specifications and retailer prices

From $546 USD
As of November 2, 2026
Save $3,112 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,510 USD at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 5.06ct lab-grown radiant diamond

This 5.06ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG663411510 or 663411510. Listed at 14 retailers as of November 2, 2026, with a 570% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.06
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle29.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG663411510
Dimensions8.08 × 12.16 × 5.47 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.08 mm12.16 mm5.06 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG663411510
Side View
Table 63.0%Crown 41.2°Girdle: MED-STKPavilion 29.7°Culet: NoneDepth 67.7%

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: Nov 2
Current: $6,510 USD|Low: $524 USD|High: $6,510 USD|Avg: $1,382 USD
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
November 2, 2026
Retailer 14$546 USD
Retailer 13$612 USD
Retailer 4$677 USD
Retailer 11$677 USD
Retailer 2$720 USD
Retailer 12$815 USD
Retailer 6$1,036 USD
Retailer 5$1,046 USD
Retailer 7$1,056 USD
Retailer 10$1,079 USD
Retailer 9$1,748 USD
Retailer 3$1,781 USD
Retailer 8$2,842 USD
Brilliant Earth$6,510 USD

42 data points across 14 retailers

14 retailers$546 USD to $3,658 USD

A
Cheapest Retailer
-
$546 USD
A
Retailer 2
-
$612 USD
View
A
Retailer 3
-
$677 USD
View
Retailer 4
-
$677 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$720 USD
£567 GBP
View
A
Retailer 6
-
$815 USD
View
A
Retailer 7
-
$1,036 USD
View
B+
Retailer 8
-
$1,046 USD
View
A
Retailer 9
-
$1,056 USD
£831 GBP
View
B+
Retailer 10
-
$1,748 USD
View
B+
Retailer 11
-
$1,781 USD
View
B
Retailer 12
-
$2,842 USD
£2,238 GBP
View
B
Retailer 13
-
$3,658 USD
View
Most Expensive
Brilliant Earth
15881808A · Oct 18
$6,510 USD
View
Price last confirmed 15 days ago
13 more retailers have this diamond
Prices start from $546 USDSave up to $3,112 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
5.06ct Radiant
$546 USD