CaratHunter
Plans
Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG765630030

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG765630030

Diamond specifications and retailer prices

From £89 GBP
$119 USD
As of November 2, 2026
Save £608 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £918 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart 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 LG765630030 or 765630030. Listed at 18 retailers as of November 1, 2026, with a 685% 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
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG765630030
Dimensions5.18 × 5.46 × 3.20 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.18 mm5.46 mm0.51 ctD / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG765630030
Side View
Table 65.0%Crown 32.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 58.6%

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: Nov 2
Current: £918 GBP|Low: £89 GBP|High: £928 GBP|Avg: £315 GBP
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
November 3, 2026
Retailer 14£89 GBP
Retailer 8£99 GBP
Retailer 16£103 GBP
Retailer 5£116 GBP
Retailer 10£195 GBP
Retailer 9£200 GBP
Retailer 11£213 GBP
Retailer 2£223 GBP
Retailer 13£265 GBP
Retailer 7£280 GBP
Retailer 12£298 GBP
Retailer 3£353 GBP
Retailer 15£394 GBP
Retailer 6£502 GBP
Retailer 4£697 GBP
MOH London£918 GBP

42 data points across 16 retailers

18 retailers£89 GBP to £697 GBP

A
Cheapest Retailer
-
£89 GBP
$119 USD
A
Retailer 2
-
£99 GBP
$133 USD
View
Final sale: no returns
A
Retailer 3
-
£103 GBP
$138 USD
View
Retailer 4
-
£116 GBP
$156 USD
View
Price last confirmed 39 days ago
B+
Retailer 5
-
£195 GBP
€249 EUR
View
B+
Retailer 6
-
£197 GBP
$265 USD
View
B+
Retailer 7
-
£200 GBP
ZAR 4,324 ZAR
View
B+
Retailer 8
-
£213 GBP
$286 USD
View
B+
Retailer 9
-
£223 GBP
View
B+
Retailer 10
-
£265 GBP
View
B+
Retailer 11
-
£280 GBP
$376 USD
View
B
Retailer 12
-
£298 GBP
$400 USD
View
B
Retailer 13
-
£353 GBP
$474 USD
View
B
Retailer 14
-
£394 GBP
$528 USD
View
B
Retailer 15
-
£396 GBP
$531 USD
View
Retailer 16
-
£502 GBP
View
Price last confirmed 7 days ago
B
Retailer 17
-
£697 GBP
$935 USD
View
Most Expensive
MOH London
LG765630030 · Nov 2
£918 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £89 GBPSave up to £608 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 Heart
£89 GBP