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Heart|Lab Grown|IGI

1.55ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG818681478

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681478

Diamond specifications and retailer prices

From €518 EUR
$579 USD
As of October 30, 2026
Save €4,083 EUR (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,601 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681478 or 818681478. Listed at 11 retailers as of October 30, 2026, with prices from €518 to €4,601, a €4,083 spread on the same certified stone. Do Amore Diamonds lists it at €4,601. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681478
Dimensions7.11 × 8.00 × 4.73 mm
L/W Ratio1.13
Girdle conditionFaceted
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
7.11 mm8.00 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681478
Side View
Table 60.0%Crown 37°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.1%

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: €4,601 EUR|Low: €518 EUR|High: €6,615 EUR|Avg: €2,133 EUR|-30.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6€518 EUR
Retailer 11€580 EUR
Retailer 12€770 EUR
Retailer 3€820 EUR
Retailer 8€988 EUR
Retailer 5€1,418 EUR
Retailer 9€1,593 EUR
Retailer 10€1,864 EUR
Retailer 7€2,798 EUR
Retailer 2€3,079 EUR
Retailer 4€3,878 EUR
Do Amore Diamonds€4,601 EUR

21 data points across 12 retailers

11 retailers€518 EUR to €4,601 EUR

A
Cheapest Retailer
-
€518 EUR
$579 USD
A
Retailer 2
-
€580 EUR
$648 USD
View
A
Retailer 3
-
€770 EUR
$860 USD
View
A
Retailer 4
-
€820 EUR
$916 USD
View
A
Retailer 5
-
€988 EUR
$1,104 USD
View
B+
Retailer 6
-
€1,418 EUR
A$2,438 AUD
View
B+
Retailer 7
-
€1,593 EUR
$1,780 USD
View
B+
Retailer 8
-
€1,864 EUR
$2,083 USD
View
B
Retailer 9
-
€2,798 EUR
£2,461 GBP
View
B
Retailer 10
-
€3,079 EUR
$3,440 USD
View
Most Expensive
B
Do Amore Diamonds
27-DEDEF7089 · Nov 2
€4,601 EUR
$5,140 USD
View
10 more retailers have this diamond
Prices start from €518 EURSave up to €4,083 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
1.55ct Heart
€518 EUR