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Heart|Lab Grown|IGI

1.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG623495261

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG623495261

Diamond specifications and retailer prices

From €338 EUR
$378 USD
As of October 30, 2026
Save €2,695 EUR (89%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: €3,034 EUR at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG623495261 or 623495261. Listed at 31 retailers as of October 30, 2026, with prices from €338 to €3,034, a €2,695 spread on the same certified stone. Novita Diamonds lists it at €3,034. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623495261
Dimensions7.08 × 7.89 × 4.71 mm
L/W Ratio1.11
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
7.08 mm7.89 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623495261
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 59.7%

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: Oct 30
Current: €3,034 EUR|Low: €338 EUR|High: €3,507 EUR|Avg: €1,404 EUR|-5.0%
Novita Diamonds
Retailer 2
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Retailer 16
Retailer 17
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Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 4€338 EUR
Retailer 19€414 EUR
Retailer 11€596 EUR
Retailer 18€604 EUR
Retailer 9€638 EUR
Retailer 3€653 EUR
Retailer 5€721 EUR
Retailer 2€762 EUR
Retailer 17€795 EUR
Retailer 10€1,070 EUR
Retailer 15€1,078 EUR
Retailer 21€1,176 EUR
Retailer 16€1,430 EUR
Retailer 6€1,569 EUR
Retailer 7€1,569 EUR
Retailer 12€1,624 EUR
Retailer 20€1,709 EUR
Retailer 14€1,728 EUR
Retailer 13€2,453 EUR
Retailer 8€2,999 EUR
Novita Diamonds€3,034 EUR

41 data points across 21 retailers

31 retailers€338 EUR to €3,034 EUR

A
Cheapest Retailer
-
€338 EUR
$378 USD
Retailer 2
-
€338 EUR
$378 USD
View
Price last confirmed 24 days ago
Retailer 3
-
€338 EUR
$378 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
€414 EUR
$462 USD
View
Final sale: no returns
Retailer 5
-
€419 EUR
$468 USD
View
Price last confirmed 29 days ago
Retailer 6
-
€419 EUR
$468 USD
View
Price last confirmed 22 days ago
A
Retailer 7
-
€596 EUR
HK$5,200 HKD
View
A
Retailer 8
-
€604 EUR
$675 USD
View
A
Retailer 9
-
€638 EUR
$713 USD
View
A
Retailer 10
-
€653 EUR
$730 USD
View
A
Retailer 11
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€721 EUR
$806 USD
View
Retailer 12
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€722 EUR
$807 USD
View
Price last confirmed 32 days ago
A
Retailer 13
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€762 EUR
£670 GBP
View
Retailer 14
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€786 EUR
$878 USD
View
Price last confirmed 34 days ago
A
Retailer 15
-
€795 EUR
ZAR 14,351 ZAR
View
Retailer 16
-
€826 EUR
$923 USD
View
Price last confirmed 35 days ago
B+
Retailer 17
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€1,070 EUR
$1,196 USD
View
B+
Retailer 18
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€1,078 EUR
A$1,852 AUD
View
B+
Retailer 19
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€1,176 EUR
$1,314 USD
View
B+
Retailer 20
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€1,430 EUR
A$2,458 AUD
View
Retailer 21
-
€1,488 EUR
$1,662 USD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
€1,488 EUR
$1,662 USD
View
B+
Retailer 23
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€1,569 EUR
$1,753 USD
View
B+
Retailer 24
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€1,569 EUR
$1,753 USD
View
B+
Retailer 25
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€1,624 EUR
$1,815 USD
View
Retailer 26
-
€1,709 EUR
£1,503 GBP
View
Price last confirmed 11 days ago
B
Retailer 27
-
€1,728 EUR
SGD 2,609 SGD
View
B
Retailer 28
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€2,453 EUR
$2,740 USD
View
Retailer 29
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€2,599 EUR
$2,904 USD
View
Price last confirmed 32 days ago
B
Retailer 30
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€2,999 EUR
$3,350 USD
View
Most Expensive
B
Novita Diamonds
cert_623495261 · Oct 31
€3,034 EUR
A$5,214 AUD
View
30 more retailers have this diamond
Prices start from €338 EURSave up to €2,695 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
€338 EUR