CaratHunter
Plans
Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG815693961

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG815693961

Diamond specifications and retailer prices

From £81 GBP
$109 USD
As of November 2, 2026
Save £592 GBP (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £841 GBP at MOH London · As of November 1, 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 LG815693961 or 815693961. Listed at 18 retailers as of November 1, 2026, with a 728% 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
SymmetryVery Good
FluorescenceNone
Crown angle38.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815693961
Dimensions5.39 × 5.00 × 3.15 mm
L/W Ratio1.08
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.39 mm5.00 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG815693961
Side View
Table 59.0%Crown 38.1°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 58.4%

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: £841 GBP|Low: £78 GBP|High: £850 GBP|Avg: £232 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
November 3, 2026
Retailer 7£81 GBP
Retailer 6£91 GBP
Retailer 8£94 GBP
Retailer 3£107 GBP
Retailer 10£107 GBP
Retailer 4£138 GBP
Retailer 9£183 GBP
Retailer 12£187 GBP
Retailer 2£199 GBP
Retailer 13£243 GBP
Retailer 5£272 GBP
Retailer 11£324 GBP
Retailer 14£361 GBP
MOH London£841 GBP

43 data points across 14 retailers

18 retailers£81 GBP to £673 GBP

A
Cheapest Retailer
-
£81 GBP
$109 USD
A
Retailer 2
-
£91 GBP
$122 USD
View
Final sale: no returns
A
Retailer 3
-
£94 GBP
$126 USD
View
A
Retailer 4
-
£107 GBP
$144 USD
View
Retailer 5
-
£107 GBP
$144 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
£115 GBP
HK$1,200 HKD
View
A
Retailer 7
-
£138 GBP
$185 USD
View
A
Retailer 8
-
£183 GBP
ZAR 3,962 ZAR
View
B+
Retailer 9
-
£187 GBP
€239 EUR
View
B+
Retailer 10
-
£199 GBP
View
B+
Retailer 11
-
£243 GBP
View
B+
Retailer 12
-
£272 GBP
$365 USD
View
B+
Retailer 13
-
£285 GBP
SGD 517 SGD
View
B
Retailer 14
-
£324 GBP
$434 USD
View
B
Retailer 15
-
£361 GBP
$484 USD
View
B
Retailer 16
-
£367 GBP
$492 USD
View
B
Retailer 17
-
£673 GBP
$903 USD
View
Most Expensive
MOH London
LG815693961 · Nov 1
£841 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £81 GBPSave up to £592 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
£81 GBP