CaratHunter
Plans
Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG782654831

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

Certificate IGI LG782654831

Diamond specifications and retailer prices

From £87 GBP
$117 USD
As of October 24, 2026
Save £566 GBP (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £686 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 LG782654831 or 782654831. Listed at 19 retailers as of October 24, 2026, with a 649% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle50.4°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782654831
Dimensions5.57 × 4.05 × 2.56 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.57 mm4.05 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG782654831
Side View
Table 66.0%Crown 50.4°Girdle: MediumPavilion 34.7°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
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: Oct 24
Current: £686 GBP|Low: £74 GBP|High: £815 GBP|Avg: £257 GBP|-14.8%
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
Retailer 20
October 31, 2026
Retailer 5£75 GBP
Retailer 11£84 GBP
Retailer 19£87 GBP
Retailer 10£99 GBP
Retailer 4£105 GBP
Retailer 20£160 GBP
Retailer 18£165 GBP
Retailer 3£170 GBP
Retailer 16£179 GBP
Retailer 9£189 GBP
Retailer 2£209 GBP
Retailer 17£254 GBP
Retailer 14£260 GBP
Retailer 15£261 GBP
Retailer 7£265 GBP
Retailer 13£269 GBP
Retailer 6£299 GBP
Retailer 12£489 GBP
Retailer 8£654 GBP
MOH London£686 GBP

42 data points across 20 retailers

19 retailers£87 GBP to £654 GBP

Retailer 1
-
£75 GBP
$100 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£87 GBP
$117 USD
View
A
Retailer 3
-
£99 GBP
$133 USD
View
A
Retailer 4
-
£105 GBP
HK$1,100 HKD
View
Retailer 5
-
£160 GBP
$215 USD
View
Price last confirmed 9 days ago
Retailer 6
-
£165 GBP
ZAR 3,578 ZAR
View
Price last confirmed 8 days ago
Retailer 7
-
£170 GBP
€217 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
£179 GBP
View
B+
Retailer 9
-
£189 GBP
$253 USD
View
B+
Retailer 10
-
£209 GBP
$280 USD
View
B+
Retailer 11
-
£254 GBP
View
B+
Retailer 12
-
£260 GBP
SGD 471 SGD
View
B+
Retailer 13
-
£261 GBP
$350 USD
View
B+
Retailer 14
-
£265 GBP
$355 USD
View
B+
Retailer 15
-
£269 GBP
$360 USD
View
B+
Retailer 16
-
£299 GBP
$400 USD
View
B
Retailer 17
-
£489 GBP
View
B
Retailer 18
-
£654 GBP
$876 USD
View
Most Expensive
MOH London
LG782654831 · Oct 19
£686 GBP
View
Price last confirmed 12 days ago
18 more retailers have this diamond
Prices start from £87 GBPSave up to £566 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
£87 GBP