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Heart|Lab Grown|IGI

1.55ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG831697224

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831697224

Diamond specifications and retailer prices

From €909 EUR
$1,016 USD
As of November 1, 2026
Save €3,548 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,458 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG831697224 or 831697224. Listed at 14 retailers as of October 31, 2026, with prices from €909 to €4,458, a €3,548 spread on the same certified stone. Brilliant Earth lists it at €4,458. 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 angle36.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831697224
Dimensions8.05 × 7.11 × 4.62 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
8.05 mm7.11 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831697224
Side View
Table 58.0%Crown 36.9°Girdle: MED-THKPavilion 37.4°Culet: NoneDepth 57.4%

Caratlytics Score

How it works →
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: €4,458 EUR|Low: €909 EUR|High: €4,458 EUR|Avg: €2,180 EUR
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
November 2, 2026
Retailer 12€909 EUR
Retailer 7€1,067 EUR
Retailer 8€1,079 EUR
Retailer 14€1,132 EUR
Retailer 6€1,419 EUR
Retailer 2€1,453 EUR
Retailer 11€1,734 EUR
Retailer 9€1,896 EUR
Retailer 4€2,419 EUR
Retailer 3€2,800 EUR
Retailer 13€3,093 EUR
Retailer 10€3,217 EUR
Retailer 5€3,279 EUR
Brilliant Earth€4,458 EUR

8 data points across 14 retailers

14 retailers€909 EUR to €4,458 EUR

A
Cheapest Retailer
-
€909 EUR
$1,016 USD
Final sale: no returns
A
Retailer 2
-
€1,067 EUR
£938 GBP
View
A
Retailer 3
-
€1,079 EUR
$1,205 USD
View
B+
Retailer 4
-
€1,132 EUR
$1,265 USD
View
B+
Retailer 5
-
€1,419 EUR
$1,585 USD
View
B+
Retailer 6
-
€1,453 EUR
£1,278 GBP
View
B+
Retailer 7
-
€1,734 EUR
ZAR 31,304 ZAR
View
B+
Retailer 8
-
€1,896 EUR
$2,118 USD
View
B
Retailer 9
-
€2,419 EUR
$2,703 USD
View
B
Retailer 10
-
€2,800 EUR
$3,128 USD
View
B
Retailer 11
-
€3,093 EUR
$3,455 USD
View
B
Retailer 12
-
€3,217 EUR
£2,830 GBP
View
B
Retailer 13
-
€3,279 EUR
$3,663 USD
View
Most Expensive
B
Brilliant Earth
22318941A · Oct 31
€4,458 EUR
$4,980 USD
View
13 more retailers have this diamond
Prices start from €909 EURSave up to €3,548 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
€909 EUR