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Heart|Lab Grown|IGI

1.37ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG773627448

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG773627448

Diamond specifications and retailer prices

From £299 GBP
$400 USD
As of October 30, 2026
Save £453 GBP (60%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £894 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.37ct lab-grown heart diamond

This 1.37ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG773627448 or 773627448. Listed at 6 retailers as of October 29, 2026, with a 152% 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

1.37
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773627448
Dimensions6.64 × 7.88 × 4.51 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
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
6.64 mm7.88 mm1.37 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773627448
Side View
Table 56.0%Crown 32.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 57.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £894 GBP|Low: £299 GBP|High: £70,252 GBP|Avg: £9,436 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 3£299 GBP
Retailer 4£405 GBP
Retailer 5£412 GBP
Retailer 2£420 GBP
Retailer 7£567 GBP
Retailer 6£752 GBP
MOH London£894 GBP
Retailer 8£70,252 GBP

40 data points across 8 retailers

6 retailers£299 GBP to £752 GBP

B+
Cheapest Retailer
-
£299 GBP
$400 USD
B+
Retailer 2
-
£405 GBP
$542 USD
View
B+
Retailer 3
-
£412 GBP
$552 USD
View
B+
Retailer 4
-
£420 GBP
View
B
Retailer 5
-
£752 GBP
$1,007 USD
View
Most Expensive
MOH London
LG773627448 · Oct 18
£894 GBP
View
Price last confirmed 13 days ago
5 more retailers have this diamond
Prices start from £299 GBPSave up to £453 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.

B+
1.37ct Heart
£299 GBP