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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836620979

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620979

Diamond specifications and retailer prices

From €558 EUR
$626 USD
As of November 2, 2026
Save €2,678 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €3,236 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 LG836620979 or 836620979. Listed at 19 retailers as of November 2, 2026, with prices from €558 to €3,236, a €2,678 spread on the same certified stone. Brilliant Earth lists it at €3,236. 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 angle38.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620979
Dimensions7.07 × 7.83 × 4.56 mm
L/W Ratio1.11
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
7.07 mm7.83 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620979
Side View
Table 59.0%Crown 38.3°Girdle: Slightly ThickPavilion 36.9°Culet: NoneDepth 58.2%

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: Nov 2
Current: €3,236 EUR|Low: €558 EUR|High: €4,449 EUR|Avg: €1,731 EUR|-27.3%
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
November 2, 2026
Retailer 12€558 EUR
Retailer 4€635 EUR
Retailer 18€678 EUR
Retailer 7€737 EUR
Retailer 16€834 EUR
Retailer 5€1,007 EUR
Retailer 13€1,083 EUR
Retailer 15€1,083 EUR
Retailer 17€1,105 EUR
Retailer 11€1,244 EUR
Retailer 2€1,594 EUR
Retailer 3€1,904 EUR
Retailer 9€2,228 EUR
Retailer 6€2,336 EUR
Retailer 10€2,650 EUR
Retailer 8€2,817 EUR
Retailer 14€2,852 EUR
Brilliant Earth€3,236 EUR

35 data points across 18 retailers

19 retailers€558 EUR to €3,236 EUR

A
Cheapest Retailer
-
€558 EUR
$626 USD
A
Retailer 2
-
€635 EUR
$712 USD
View
A
Retailer 3
-
€678 EUR
$760 USD
View
Retailer 4
-
€701 EUR
$786 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
€737 EUR
$827 USD
View
Final sale: no returns
A
Retailer 6
-
€834 EUR
$935 USD
View
A
Retailer 7
-
€1,007 EUR
$1,130 USD
View
B+
Retailer 8
-
€1,083 EUR
£956 GBP
View
B+
Retailer 9
-
€1,083 EUR
View
B+
Retailer 10
-
€1,105 EUR
$1,239 USD
View
B+
Retailer 11
-
€1,244 EUR
ZAR 22,544 ZAR
View
B+
Retailer 12
-
€1,594 EUR
$1,788 USD
View
B+
Retailer 13
-
€1,904 EUR
$2,135 USD
View
B+
Retailer 14
-
€2,228 EUR
$2,499 USD
View
B
Retailer 15
-
€2,336 EUR
$2,620 USD
View
B
Retailer 16
-
€2,650 EUR
SGD 4,016 SGD
View
B
Retailer 17
-
€2,817 EUR
$3,160 USD
View
B
Retailer 18
-
€2,852 EUR
£2,519 GBP
View
Most Expensive
B
Brilliant Earth
21590133A · Nov 2
€3,236 EUR
$3,630 USD
View
18 more retailers have this diamond
Prices start from €558 EURSave up to €2,678 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
€558 EUR