CaratHunter
Plans
Heart|Lab Grown|IGI

1.50ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG743578833

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG743578833

Diamond specifications and retailer prices

From £275 GBP
$368 USD
As of October 30, 2026
Save £1,180 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,455 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.5ct lab-grown heart diamond

This 1.5ct 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 LG743578833 or 743578833. Listed at 21 retailers as of October 30, 2026, with prices from £275 to £1,455, a £1,180 spread on the same certified stone. With Clarity lists it at £1,455. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743578833
Dimensions7.94 × 7.94 × 7.43 mm
L/W Ratio1.00
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
7.94 mm7.94 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743578833
Side View
Table 59.0%Crown 32.4°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 55.8%

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 30
Current: £351 GBP|Low: £263 GBP|High: £1,345 GBP|Avg: £635 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 13£275 GBP
Retailer 5£318 GBP
Retailer 2£340 GBP
Retailer 1£351 GBP
Retailer 11£452 GBP
Retailer 4£457 GBP
Retailer 7£550 GBP
Retailer 10£584 GBP
Retailer 6£614 GBP
Retailer 8£789 GBP
Retailer 12£998 GBP
Retailer 3£1,185 GBP
Retailer 9£1,336 GBP

34 data points across 13 retailers

21 retailers£275 GBP to £1,455 GBP

A
Cheapest Retailer
-
£275 GBP
$368 USD
A
Retailer 2
-
£307 GBP
$412 USD
View
Final sale: no returns
A
Retailer 3
-
£318 GBP
$426 USD
View
A
Retailer 4
-
£340 GBP
$456 USD
View
A
Retailer 5
-
£340 GBP
$456 USD
View
A
Retailer 6
-
£351 GBP
View
A
Retailer 7
-
£452 GBP
$605 USD
View
A
Retailer 8
-
£457 GBP
$612 USD
View
A
Retailer 9
-
£529 GBP
$709 USD
View
A
Retailer 10
-
£550 GBP
€702 EUR
View
A
Retailer 11
-
£584 GBP
ZAR 12,652 ZAR
View
A
Retailer 12
-
£614 GBP
View
A
Retailer 13
-
£766 GBP
$1,027 USD
View
A
Retailer 14
-
£789 GBP
A$1,627 AUD
View
B+
Retailer 15
-
£998 GBP
$1,337 USD
View
B+
Retailer 16
-
£1,093 GBP
$1,465 USD
View
B+
Retailer 17
-
£1,123 GBP
$1,505 USD
View
B+
Retailer 18
-
£1,185 GBP
$1,588 USD
View
B+
Retailer 19
-
£1,284 GBP
$1,721 USD
View
B+
Retailer 20
-
£1,336 GBP
View
Most Expensive
B
With Clarity
743578833 · Oct 30
£1,455 GBP
$1,949 USD
View
20 more retailers have this diamond
Prices start from £275 GBPSave up to £1,180 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
1.50ct Heart
£275 GBP