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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836619131

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836619131

Diamond specifications and retailer prices

From €884 EUR
$991 USD
As of November 1, 2026
Save €3,441 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €4,324 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct 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 LG836619131 or 836619131. Listed at 14 retailers as of November 1, 2026, with prices from €884 to €4,324, a €3,441 spread on the same certified stone. Brilliant Earth lists it at €4,324. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619131
Dimensions8.06 × 7.10 × 4.53 mm
L/W Ratio1.14
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
8.06 mm7.10 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619131
Side View
Table 60.0%Crown 34.7°Girdle: MED-STKPavilion 38°Culet: NoneDepth 56.2%

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: €4,324 EUR|Low: €884 EUR|High: €4,324 EUR|Avg: €2,159 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 3, 2026
Retailer 12€884 EUR
Retailer 7€1,036 EUR
Retailer 14€1,079 EUR
Retailer 10€1,092 EUR
Retailer 6€1,377 EUR
Retailer 8€1,410 EUR
Retailer 2€1,686 EUR
Retailer 11€1,905 EUR
Retailer 4€2,347 EUR
Retailer 3€2,717 EUR
Retailer 13€3,016 EUR
Retailer 5€3,182 EUR
Retailer 9€3,435 EUR
Brilliant Earth€4,324 EUR

9 data points across 14 retailers

14 retailers€884 EUR to €4,324 EUR

A
Cheapest Retailer
-
€884 EUR
$991 USD
Final sale: no returns
A
Retailer 2
-
€1,036 EUR
£915 GBP
View
B+
Retailer 3
-
€1,079 EUR
$1,210 USD
View
B+
Retailer 4
-
€1,092 EUR
$1,225 USD
View
B+
Retailer 5
-
€1,377 EUR
$1,545 USD
View
B+
Retailer 6
-
€1,410 EUR
£1,245 GBP
View
B+
Retailer 7
-
€1,686 EUR
ZAR 30,548 ZAR
View
B
Retailer 8
-
€1,905 EUR
$2,137 USD
View
B
Retailer 9
-
€2,347 EUR
$2,633 USD
View
B
Retailer 10
-
€2,717 EUR
$3,047 USD
View
B
Retailer 11
-
€3,016 EUR
$3,383 USD
View
B
Retailer 12
-
€3,182 EUR
$3,568 USD
View
B
Retailer 13
-
€3,435 EUR
£3,034 GBP
View
Most Expensive
B
Brilliant Earth
22318645A · Nov 2
€4,324 EUR
$4,850 USD
View
13 more retailers have this diamond
Prices start from €884 EURSave up to €3,441 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
1.51ct Heart
€884 EUR