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Heart|Lab Grown|IGI

1.57ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG618401799

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG618401799

Diamond specifications and retailer prices

From €770 EUR
$860 USD
As of October 30, 2026
Save €3,330 EUR (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €4,100 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.57ct lab-grown heart diamond

This 1.57ct 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 LG618401799 or 618401799. Listed at 22 retailers as of October 30, 2026, with prices from €770 to €4,100, a €3,330 spread on the same certified stone. Brilliant Earth lists it at €4,100. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618401799
Dimensions7.38 × 8.05 × 4.60 mm
L/W Ratio1.09
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
7.38 mm8.05 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618401799
Side View
Table 61.0%Crown 37.9°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 57.1%

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: €4,100 EUR|Low: €756 EUR|High: €4,108 EUR|Avg: €1,885 EUR|-0.2%
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 8€770 EUR
Retailer 4€838 EUR
Retailer 17€893 EUR
Retailer 14€923 EUR
Retailer 5€1,052 EUR
Retailer 18€1,101 EUR
Retailer 6€1,139 EUR
Retailer 11€1,278 EUR
Retailer 2€1,373 EUR
Retailer 13€1,601 EUR
Retailer 19€1,641 EUR
Retailer 15€1,872 EUR
Retailer 12€2,223 EUR
Retailer 3€2,511 EUR
Retailer 7€2,794 EUR
Retailer 10€3,097 EUR
Retailer 16€3,204 EUR
Retailer 9€3,351 EUR
Brilliant Earth€4,100 EUR

34 data points across 19 retailers

22 retailers€770 EUR to €4,100 EUR

A
Cheapest Retailer
-
€770 EUR
$860 USD
A
Retailer 2
-
€838 EUR
$936 USD
View
A
Retailer 3
-
€893 EUR
$998 USD
View
Retailer 4
-
€914 EUR
$1,021 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€923 EUR
$1,031 USD
View
Final sale: no returns
B+
Retailer 6
-
€1,052 EUR
$1,175 USD
View
B+
Retailer 7
-
€1,101 EUR
$1,230 USD
View
B+
Retailer 8
-
€1,139 EUR
$1,273 USD
View
B+
Retailer 9
-
€1,278 EUR
$1,428 USD
View
B+
Retailer 10
-
€1,373 EUR
£1,208 GBP
View
B+
Retailer 11
-
€1,601 EUR
View
B+
Retailer 12
-
€1,641 EUR
ZAR 29,624 ZAR
View
B+
Retailer 13
-
€1,872 EUR
$2,091 USD
View
Retailer 14
-
€2,215 EUR
A$3,807 AUD
View
Price last confirmed 157 days ago
B+
Retailer 15
-
€2,223 EUR
A$3,821 AUD
View
B
Retailer 16
-
€2,511 EUR
$2,805 USD
View
B
Retailer 17
-
€2,644 EUR
$2,954 USD
View
B
Retailer 18
-
€2,794 EUR
$3,121 USD
View
B
Retailer 19
-
€3,097 EUR
$3,460 USD
View
B
Retailer 20
-
€3,204 EUR
$3,580 USD
View
B
Retailer 21
-
€3,351 EUR
£2,948 GBP
View
Most Expensive
B
Brilliant Earth
11243115A · Oct 31
€4,100 EUR
$4,580 USD
View
21 more retailers have this diamond
Prices start from €770 EURSave up to €3,330 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
1.57ct Heart
€770 EUR