Radiant|Lab Grown|IGI

0.51ct F VS1 Radiant Lab Grown Diamond

VG • F/VS1 • IGI LG588368554

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

Certificate IGI LG588368554

Diamond specifications and retailer prices

From $111 USD
As of November 2, 2026
Save $866 USD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,151 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG588368554 or 588368554. Listed at 12 retailers as of October 31, 2026, with a 780% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.51
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588368554
Dimensions5.15 × 4.09 × 3.08 mm
L/W Ratio1.26
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.15 mm4.09 mm0.51 ctF / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588368554
Side View
Table 60.0%Crown 37.8°Girdle: MediumPavilion 39.1°Culet: NoneDepth 75.3%

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: Nov 2
Current: $1,151 USD|Low: $111 USD|High: $1,190 USD|Avg: $419 USD|-3.1%
MOH London
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 2$111 USD
Retailer 14$129 USD
Retailer 11$147 USD
Retailer 9$230 USD
Retailer 5$242 USD
Retailer 10$250 USD
Retailer 3$273 USD
Retailer 8$277 USD
Retailer 7$333 USD
Retailer 12$443 USD
Retailer 4$504 USD
Retailer 6$716 USD
Retailer 13$977 USD
MOH London$1,151 USD

20 data points across 14 retailers

12 retailers$111 USD to $977 USD

A
Cheapest Retailer
-
$111 USD
A
Retailer 2
-
$129 USD
View
A
Retailer 3
-
$147 USD
View
B+
Retailer 4
-
$230 USD
View
B+
Retailer 5
-
$250 USD
ZAR 4,046 ZAR
View
B+
Retailer 6
-
$273 USD
View
B+
Retailer 7
-
$277 USD
£218 GBP
View
B+
Retailer 8
-
$333 USD
£262 GBP
View
B
Retailer 9
-
$443 USD
View
Retailer 10
-
$504 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$977 USD
View
Most Expensive
MOH London
LG588368554 · Nov 1
$1,151 USD
£906 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $111 USDSave up to $866 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
0.51ct Radiant
$111 USD