CaratHunter
Plans
Heart|Lab Grown|IGI

1.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG836603148

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836603148

Diamond specifications and retailer prices

From €323 EUR
$361 USD
As of October 30, 2026
Save €2,710 EUR (89%) vs most expensive(unlock to see where)
13 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 LG836603148 or 836603148. Listed at 13 retailers as of October 30, 2026, with prices from €323 to €3,034, a €2,710 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 angle36.6°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836603148
Dimensions7.81 × 6.84 × 4.69 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
7.81 mm6.84 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836603148
Side View
Table 61.0%Crown 36.6°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 60.1%

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: €3,034 EUR|Low: €317 EUR|High: €3,072 EUR|Avg: €1,374 EUR|-1.0%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9€323 EUR
Retailer 6€468 EUR
Retailer 3€577 EUR
Retailer 12€642 EUR
Retailer 4€733 EUR
Retailer 8€1,032 EUR
Retailer 5€1,070 EUR
Retailer 10€1,176 EUR
Retailer 13€1,423 EUR
Retailer 2€1,730 EUR
Retailer 7€2,453 EUR
Retailer 11€2,873 EUR
Novita Diamonds€3,034 EUR

32 data points across 13 retailers

13 retailers€323 EUR to €3,034 EUR

A
Cheapest Retailer
-
€323 EUR
$361 USD
A
Retailer 2
-
€468 EUR
£412 GBP
View
A
Retailer 3
-
€577 EUR
$645 USD
View
A
Retailer 4
-
€642 EUR
$717 USD
View
A
Retailer 5
-
€733 EUR
$819 USD
View
A
Retailer 6
-
€1,032 EUR
A$1,773 AUD
View
B+
Retailer 7
-
€1,070 EUR
$1,196 USD
View
B+
Retailer 8
-
€1,176 EUR
$1,314 USD
View
B+
Retailer 9
-
€1,423 EUR
$1,590 USD
View
B+
Retailer 10
-
€1,730 EUR
£1,522 GBP
View
B
Retailer 11
-
€2,453 EUR
$2,740 USD
View
B
Retailer 12
-
€2,873 EUR
$3,210 USD
View
Most Expensive
B
Novita Diamonds
cert_836603148 · Oct 31
€3,034 EUR
A$5,214 AUD
View
12 more retailers have this diamond
Prices start from €323 EURSave up to €2,710 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
€323 EUR