Radiant|Lab Grown|IGI

5.51ct F VS2 Radiant Lab Grown Diamond

ID • F/VS2 • IGI LG598345563

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

Certificate IGI LG598345563

Diamond specifications and retailer prices

From $1,340 USD
£1,055 GBP
As of November 2, 2026
Save $5,000 USD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,340 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.51ct lab-grown radiant diamond

This 5.51ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG598345563 or 598345563. Listed at 8 retailers as of November 2, 2026, with prices from $1,340 to $6,340, a $5,000 spread on the same certified stone. Brilliant Earth lists it at $6,340. 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

5.51
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598345563
Dimensions12.61 × 8.58 × 5.85 mm
L/W Ratio1.47
Culet sizePointed
Top View
12.61 mm8.58 mm5.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598345563
Side View
Table 62.0%Crown 46.8°Girdle: MediumPavilion 33.5°Culet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $6,340 USD|Low: $1,240 USD|High: $9,260 USD|Avg: $2,896 USD|-31.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$1,340 USD
Retailer 5$1,347 USD
Retailer 7$1,415 USD
Retailer 4$1,469 USD
Retailer 6$2,089 USD
Retailer 8$3,018 USD
Retailer 3$3,435 USD
Brilliant Earth$6,340 USD

37 data points across 8 retailers

8 retailers$1,340 USD to $6,340 USD

A
Cheapest Retailer
-
$1,340 USD
£1,055 GBP
A
Retailer 2
-
$1,347 USD
View
B+
Retailer 3
-
$1,415 USD
View
A
Retailer 4
-
$1,469 USD
€1,399 EUR
View
B+
Retailer 5
-
$2,089 USD
View
Retailer 6
-
$3,018 USD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
$3,435 USD
£2,705 GBP
View
Most Expensive
B
Brilliant Earth
8117643A · Nov 2
$6,340 USD
View
7 more retailers have this diamond
Prices start from $1,340 USDSave up to $5,000 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
5.51ct Radiant
$1,340 USD