CaratHunter
Plans
Radiant|Lab Grown|IGI

0.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG815646211

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

Certificate IGI LG815646211

Diamond specifications and retailer prices

From £107 GBP
As of November 4, 2026
Save £516 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £623 GBP at MOH London · As of November 2, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815646211 or 815646211. Listed at 20 retailers as of November 2, 2026, with prices from £107 to £623, a £516 spread on the same certified stone. MOH London lists it at £623. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815646211
Dimensions5.69 × 4.02 × 2.53 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.69 mm4.02 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815646211
Side View
Table 65.0%Crown 38.4°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £623 GBP|Low: £107 GBP|High: £646 GBP|Avg: £305 GBP|-3.6%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 4, 2026
Retailer 2£107 GBP
Retailer 13£120 GBP
Retailer 16£124 GBP
Retailer 19£133 GBP
Retailer 11£136 GBP
Retailer 14£179 GBP
Retailer 15£226 GBP
Retailer 7£241 GBP
Retailer 9£251 GBP
Retailer 5£253 GBP
Retailer 6£339 GBP
Retailer 10£355 GBP
Retailer 4£366 GBP
Retailer 8£385 GBP
Retailer 17£421 GBP
Retailer 12£426 GBP
Retailer 18£450 GBP
Retailer 3£467 GBP
MOH London£623 GBP

19 data points across 19 retailers

20 retailers£107 GBP to £623 GBP

A+
Cheapest Retailer
-
£107 GBP
A
Retailer 2
-
£120 GBP
View
Final sale: no returns
A
Retailer 3
-
£124 GBP
View
A
Retailer 4
-
£133 GBP
View
Retailer 5
-
£136 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
-
£179 GBP
View
A
Retailer 7
-
£226 GBP
View
A
Retailer 8
-
£241 GBP
View
A
Retailer 9
-
£251 GBP
View
B+
Retailer 10
-
£253 GBP
View
B+
Retailer 11
-
£339 GBP
View
B+
Retailer 12
-
£355 GBP
View
B+
Retailer 13
-
£366 GBP
View
Retailer 14
-
£381 GBP
View
Price last confirmed 28 days ago
B+
Retailer 15
-
£385 GBP
View
B+
Retailer 16
-
£421 GBP
View
B+
Retailer 17
-
£426 GBP
View
B
Retailer 18
-
£450 GBP
View
B+
Retailer 19
-
£467 GBP
View
Most Expensive
B
MOH London
LG815646211 · Nov 2
£623 GBP
View
19 more retailers have this diamond
Prices start from £107 GBPSave up to £516 GBP

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
£107 GBP