Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG840661748

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

Certificate IGI LG840661748

Diamond specifications and retailer prices

From £123 GBP
$165 USD
As of October 18, 2026
9 retailers carry this diamond
Most expensive: £671 GBP at MOH London · As of October 19, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840661748 or 840661748. Listed at 9 retailers as of October 18, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840661748
Dimensions5.64 × 3.98 × 2.66 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.64 mm3.98 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840661748
Side View
Table 66.0%Crown 36.3°Girdle: Slightly ThickPavilion 38°Culet: NoneDepth 66.8%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 18
Current: £671 GBP|Low: £123 GBP|High: £671 GBP|Avg: £243 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 23, 2026
Retailer 11£123 GBP
Retailer 3£163 GBP
Retailer 6£164 GBP
Retailer 2£187 GBP
Retailer 10£209 GBP
Retailer 9£232 GBP
Retailer 5£253 GBP
Retailer 7£253 GBP
Retailer 8£319 GBP
Retailer 4£331 GBP
MOH London£671 GBP

15 data points across 11 retailers

9 retailers£123 GBP to £671 GBP

Retailer 1
-
£123 GBP
$165 USD
Price last confirmed 13 days ago
Retailer 2
-
£163 GBP
ZAR 3,519 ZAR
View
Price last confirmed 13 days ago
Retailer 3
-
£164 GBP
View
Price last confirmed 11 days ago
Retailer 4
-
£187 GBP
€238 EUR
View
Price last confirmed 7 days ago
Retailer 5
-
£209 GBP
$280 USD
View
Price last confirmed 12 days ago
Retailer 6
-
£232 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£253 GBP
SGD 458 SGD
View
Price last confirmed 11 days ago
Retailer 8
-
£331 GBP
$444 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG840661748 · Oct 19
£671 GBP
View
Price last confirmed 12 days ago
8 more retailers have this diamond

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.

0.51ct Radiant
£123 GBP