Radiant|Lab Grown|IGI

0.51ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG786676873

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

Certificate IGI LG786676873

Diamond specifications and retailer prices

From £110 GBP
$147 USD
As of October 27, 2026
Save £528 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £638 GBP at MOH London · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786676873 or 786676873. Listed at 19 retailers as of October 27, 2026, with prices from £110 to £638, a £528 spread on the same certified stone. MOH London lists it at £638. 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
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786676873
Dimensions5.81 × 3.97 × 2.65 mm
L/W Ratio1.46
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.81 mm3.97 mm0.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786676873
Side View
Table 67.0%Crown 37°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 66.8%

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: Oct 27
Current: £638 GBP|Low: £110 GBP|High: £669 GBP|Avg: £310 GBP|-4.7%
MOH London
Retailer 2
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Retailer 18
October 30, 2026
Retailer 15£110 GBP
Retailer 16£122 GBP
Retailer 4£137 GBP
Retailer 6£137 GBP
Retailer 13£185 GBP
Retailer 2£234 GBP
Retailer 14£246 GBP
Retailer 7£249 GBP
Retailer 9£265 GBP
Retailer 18£336 GBP
Retailer 3£349 GBP
Retailer 8£360 GBP
Retailer 17£376 GBP
Retailer 11£433 GBP
Retailer 5£441 GBP
Retailer 10£466 GBP
Retailer 12£478 GBP
MOH London£638 GBP

21 data points across 18 retailers

19 retailers£110 GBP to £638 GBP

A
Cheapest Retailer
-
£110 GBP
$147 USD
A
Retailer 2
-
£122 GBP
$164 USD
View
Final sale: no returns
A
Retailer 3
-
£137 GBP
$184 USD
View
A
Retailer 4
-
£137 GBP
$184 USD
View
A
Retailer 5
-
£185 GBP
$248 USD
View
A
Retailer 6
-
£234 GBP
View
A
Retailer 7
-
£246 GBP
ZAR 5,335 ZAR
View
A
Retailer 8
-
£249 GBP
$334 USD
View
Retailer 9
-
£265 GBP
€338 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£336 GBP
A$693 AUD
View
B+
Retailer 11
-
£349 GBP
A$719 AUD
View
B+
Retailer 12
-
£360 GBP
$483 USD
View
Retailer 13
-
£373 GBP
$500 USD
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£376 GBP
SGD 681 SGD
View
B+
Retailer 15
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£433 GBP
$580 USD
View
B+
Retailer 16
-
£441 GBP
$591 USD
View
B
Retailer 17
-
£466 GBP
$624 USD
View
B
Retailer 18
-
£478 GBP
$640 USD
View
Most Expensive
B
MOH London
LG786676873 · Oct 29
£638 GBP
View
18 more retailers have this diamond
Prices start from £110 GBPSave up to £528 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
£110 GBP