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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

D/IF • IGI LG654473132

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG654473132

Diamond specifications and retailer prices

From £361 GBP
$484 USD
As of November 1, 2026
Save £2,952 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,314 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI LG654473132 or 654473132. Listed at 11 retailers as of October 31, 2026, with prices from £361 to £3,314, a £2,952 spread on the same certified stone. Brilliant Earth lists it at £3,314. 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

1.54
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654473132
Dimensions7.02 × 8.20 × 4.60 mm
L/W Ratio1.17
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
7.02 mm8.20 mm1.54 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654473132
Side View
Table 62.0%Crown 35.3°Girdle: MED-THKPavilion 38.8°Culet: NoneDepth 56.1%

Caratlytics Score

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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 1
Current: £3,314 GBP|Low: £246 GBP|High: £3,411 GBP|Avg: £1,276 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10£246 GBP
Retailer 6£361 GBP
Retailer 5£631 GBP
Retailer 11£776 GBP
Retailer 8£869 GBP
Retailer 3£1,068 GBP
Retailer 7£1,326 GBP
Retailer 9£1,428 GBP
Retailer 2£1,474 GBP
Retailer 4£2,583 GBP
Brilliant Earth£3,314 GBP

16 data points across 11 retailers

11 retailers£361 GBP to £3,314 GBP

Retailer 1
-
£289 GBP
$387 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£361 GBP
$484 USD
View
Final sale: no returns
Retailer 3
-
£373 GBP
$500 USD
View
Price last confirmed 29 days ago
Retailer 4
-
£381 GBP
$511 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£631 GBP
$846 USD
View
B+
Retailer 6
-
£869 GBP
A$1,791 AUD
View
Retailer 7
-
£1,199 GBP
$1,607 USD
View
Price last confirmed 32 days ago
B
Retailer 8
-
£1,326 GBP
$1,777 USD
View
B
Retailer 9
-
£1,474 GBP
View
B
Retailer 10
-
£2,583 GBP
A$5,324 AUD
View
Most Expensive
B
Brilliant Earth
21535596A · Oct 31
£3,314 GBP
$4,440 USD
View
10 more retailers have this diamond
Prices start from £361 GBPSave up to £2,952 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
1.54ct Heart
£361 GBP