Radiant|Lab Grown|IGI

0.51ct H SI2 Radiant Lab Grown Diamond

VG • H/SI2 • IGI LG539229152

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

Certificate IGI LG539229152

Diamond specifications and retailer prices

From €111 EUR
$124 USD
As of October 30, 2026
Save €1,041 EUR (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,152 EUR 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG539229152 or 539229152. Listed at 13 retailers as of October 30, 2026, with prices from €111 to €1,152, a €1,041 spread on the same certified stone. MOH London lists it at €1,152. 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle31°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539229152
Dimensions5.26 × 3.87 × 2.73 mm
L/W Ratio1.36
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
5.26 mm3.87 mm0.51 ctH / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG539229152
Side View
Table 62.0%Crown 38°Girdle: THK-VTKPavilion 31°Culet: NoneDepth 70.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,152 EUR|Low: €107 EUR|High: €1,165 EUR|Avg: €318 EUR|-1.1%
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
November 1, 2026
Retailer 8€111 EUR
Retailer 4€124 EUR
Retailer 12€129 EUR
Retailer 9€147 EUR
Retailer 13€147 EUR
Retailer 2€251 EUR
Retailer 10€264 EUR
Retailer 5€275 EUR
Retailer 6€333 EUR
Retailer 3€342 EUR
Retailer 11€443 EUR
Retailer 7€468 EUR
MOH London€1,152 EUR

19 data points across 13 retailers

13 retailers€111 EUR to €1,152 EUR

B+
Cheapest Retailer
-
€111 EUR
$124 USD
B+
Retailer 2
-
€124 EUR
$139 USD
View
Final sale: no returns
B+
Retailer 3
-
€129 EUR
$144 USD
View
Retailer 4
-
€147 EUR
$164 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
€147 EUR
$164 USD
View
B+
Retailer 6
-
€251 EUR
$280 USD
View
B+
Retailer 7
-
€264 EUR
$295 USD
View
B+
Retailer 8
-
€275 EUR
HK$2,400 HKD
View
B
Retailer 9
-
€333 EUR
£293 GBP
View
B
Retailer 10
-
€342 EUR
$382 USD
View
B
Retailer 11
-
€443 EUR
$495 USD
View
B
Retailer 12
-
€468 EUR
$523 USD
View
Most Expensive
C
MOH London
LG539229152 · Nov 1
€1,152 EUR
£1,013 GBP
View
12 more retailers have this diamond
Prices start from €111 EURSave up to €1,041 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.

B+
0.51ct Radiant
€111 EUR