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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

VG • D/FL • IGI LG825656728

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825656728

Diamond specifications and retailer prices

From £482 GBP
As of November 4, 2026
Save £1,876 GBP (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,358 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825656728 or 825656728. Listed at 19 retailers as of November 3, 2026, with prices from £482 to £2,358, a £1,876 spread on the same certified stone. MOH London lists it at £2,358. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825656728
Dimensions7.20 × 8.03 × 4.50 mm
L/W Ratio1.12
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
7.20 mm8.03 mm1.51 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825656728
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 35.9°Culet: NoneDepth 56.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,358 GBP|Low: £482 GBP|High: £2,892 GBP|Avg: £1,356 GBP|-18.3%
MOH London
Retailer 2
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Retailer 18
November 5, 2026
Retailer 5£482 GBP
Retailer 17£525 GBP
Retailer 7£540 GBP
Retailer 15£560 GBP
Retailer 11£631 GBP
Retailer 12£693 GBP
Retailer 9£796 GBP
Retailer 3£836 GBP
Retailer 8£843 GBP
Retailer 2£885 GBP
Retailer 13£1,028 GBP
Retailer 14£1,288 GBP
Retailer 6£1,417 GBP
Retailer 16£1,574 GBP
Retailer 4£1,807 GBP
Retailer 10£1,931 GBP
Retailer 18£1,951 GBP
MOH London£2,358 GBP

30 data points across 18 retailers

19 retailers£482 GBP to £2,358 GBP

A
Cheapest Retailer
-
£482 GBP
A
Retailer 2
-
£525 GBP
View
A
Retailer 3
-
£540 GBP
View
Final sale: no returns
A
Retailer 4
-
£560 GBP
View
A
Retailer 5
-
£631 GBP
View
A
Retailer 6
-
£693 GBP
View
Retailer 7
-
£761 GBP
View
Price last confirmed 24 days ago
B+
Retailer 8
-
£796 GBP
View
B+
Retailer 9
-
£836 GBP
View
B+
Retailer 10
-
£843 GBP
View
B+
Retailer 11
-
£885 GBP
View
B+
Retailer 12
-
£1,028 GBP
View
B+
Retailer 13
-
£1,288 GBP
View
B
Retailer 14
-
£1,417 GBP
View
B
Retailer 15
-
£1,574 GBP
View
B
Retailer 16
-
£1,807 GBP
View
B
Retailer 17
-
£1,931 GBP
View
B
Retailer 18
-
£1,951 GBP
View
Most Expensive
B
MOH London
LG825656728 · Nov 3
£2,358 GBP
View
18 more retailers have this diamond
Prices start from £482 GBPSave up to £1,876 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
1.51ct Heart
£482 GBP