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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG722564061

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG722564061

Diamond specifications and retailer prices

From £247 GBP
$329 USD
As of October 28, 2026
Save £2,359 GBP (91%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,606 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG722564061 or 722564061. Listed at 8 retailers as of October 28, 2026, with prices from £247 to £2,606, a £2,359 spread on the same certified stone. Brilliant Earth lists it at £2,606. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722564061
Dimensions8.16 × 7.07 × 4.75 mm
L/W Ratio1.15
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
8.16 mm7.07 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722564061
Side View
Table 56.0%Crown 33.4°Girdle: MED-THKPavilion 42°Culet: NoneDepth 58.2%

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 28
Current: £2,606 GBP|Low: £247 GBP|High: £2,681 GBP|Avg: £1,014 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£247 GBP
Retailer 4£417 GBP
Retailer 2£485 GBP
Retailer 8£787 GBP
Retailer 6£882 GBP
Retailer 7£937 GBP
Retailer 3£1,105 GBP
Brilliant Earth£2,606 GBP

42 data points across 8 retailers

8 retailers£247 GBP to £2,606 GBP

A
Cheapest Retailer
-
£247 GBP
$329 USD
Final sale: no returns
A
Retailer 2
-
£417 GBP
$555 USD
View
A
Retailer 3
-
£485 GBP
View
A
Retailer 4
-
£787 GBP
$1,048 USD
View
B+
Retailer 5
-
£882 GBP
SGD 1,587 SGD
View
B+
Retailer 6
-
£937 GBP
$1,248 USD
View
B+
Retailer 7
-
£1,105 GBP
View
Most Expensive
B
Brilliant Earth
15964492A · Oct 28
£2,606 GBP
$3,470 USD
View
7 more retailers have this diamond
Prices start from £247 GBPSave up to £2,359 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
£247 GBP