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Heart|Lab Grown|IGI

1.54ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG745505078

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG745505078

Diamond specifications and retailer prices

From €259 EUR
$289 USD
As of October 30, 2026
Save €2,248 EUR (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €2,506 EUR 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), with a top-tier cut grade and certified by IGI LG745505078 or 745505078. Listed at 12 retailers as of October 30, 2026, with prices from €259 to €2,506, a €2,248 spread on the same certified stone. Brilliant Earth lists it at €2,506. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745505078
Dimensions8.20 × 7.03 × 4.50 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
8.20 mm7.03 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745505078
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 54.9%

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: Oct 30
Current: €2,506 EUR|Low: €259 EUR|High: €2,981 EUR|Avg: €1,131 EUR|-14.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 3€259 EUR
Retailer 15€300 EUR
Retailer 4€342 EUR
Retailer 11€510 EUR
Retailer 14€526 EUR
Retailer 13€554 EUR
Retailer 6€697 EUR
Retailer 7€754 EUR
Retailer 10€824 EUR
Retailer 12€873 EUR
Retailer 17€1,137 EUR
Retailer 9€1,261 EUR
Retailer 2€1,424 EUR
Retailer 8€1,459 EUR
Retailer 5€1,490 EUR
Retailer 16€2,291 EUR
Brilliant Earth€2,506 EUR

26 data points across 17 retailers

12 retailers€259 EUR to €2,506 EUR

A
Cheapest Retailer
-
€259 EUR
$289 USD
A
Retailer 2
-
€300 EUR
$335 USD
View
A
Retailer 3
-
€342 EUR
$382 USD
View
Final sale: no returns
A
Retailer 4
-
€510 EUR
$570 USD
View
A
Retailer 5
-
€526 EUR
$588 USD
View
A
Retailer 6
-
€554 EUR
$619 USD
View
A
Retailer 7
-
€824 EUR
A$1,417 AUD
View
A
Retailer 8
-
€873 EUR
$975 USD
View
B+
Retailer 9
-
€1,137 EUR
$1,270 USD
View
B+
Retailer 10
-
€1,424 EUR
£1,253 GBP
View
B
Retailer 11
-
€2,291 EUR
$2,560 USD
View
Most Expensive
B
Brilliant Earth
21415803Y · Oct 31
€2,506 EUR
$2,800 USD
View
11 more retailers have this diamond
Prices start from €259 EURSave up to €2,248 EUR

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
€259 EUR