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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG735517685

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG735517685

Diamond specifications and retailer prices

From €331 EUR
$370 USD
As of October 30, 2026
Save €1,281 EUR (79%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,612 EUR at MOH London · As of October 29, 2026
View at MOH London

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735517685 or 735517685. Listed at 21 retailers as of October 29, 2026, with prices from €331 to €1,612, a €1,281 spread on the same certified stone. MOH London lists it at €1,612. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735517685
Dimensions7.76 × 7.76 × 7.37 mm
L/W Ratio1.00
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
7.76 mm7.76 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735517685
Side View
Table 60.0%Crown 40.8°Girdle: MED-THKPavilion 36.7°Culet: NoneDepth 57.5%

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: Oct 30
Current: €1,612 EUR|Low: €318 EUR|High: €1,623 EUR|Avg: €768 EUR|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 12€331 EUR
Retailer 5€384 EUR
Retailer 13€411 EUR
Retailer 2€424 EUR
Retailer 10€546 EUR
Retailer 4€550 EUR
Retailer 7€664 EUR
Retailer 9€705 EUR
Retailer 6€741 EUR
Retailer 8€952 EUR
Retailer 11€1,204 EUR
Retailer 3€1,430 EUR
MOH London€1,612 EUR

34 data points across 13 retailers

21 retailers€331 EUR to €1,612 EUR

A
Cheapest Retailer
-
€331 EUR
$370 USD
A
Retailer 2
-
€370 EUR
$413 USD
View
Final sale: no returns
A
Retailer 3
-
€384 EUR
$429 USD
View
A
Retailer 4
-
€411 EUR
$459 USD
View
A
Retailer 5
-
€411 EUR
$459 USD
View
A
Retailer 6
-
€424 EUR
£373 GBP
View
A
Retailer 7
-
€546 EUR
$610 USD
View
A
Retailer 8
-
€550 EUR
$615 USD
View
A
Retailer 9
-
€637 EUR
$712 USD
View
A
Retailer 10
-
€664 EUR
View
A
Retailer 11
-
€705 EUR
ZAR 12,730 ZAR
View
A
Retailer 12
-
€741 EUR
£652 GBP
View
A
Retailer 13
-
€932 EUR
$1,041 USD
View
A
Retailer 14
-
€952 EUR
A$1,637 AUD
View
B+
Retailer 15
-
€1,204 EUR
$1,345 USD
View
B+
Retailer 16
-
€1,318 EUR
$1,472 USD
View
B+
Retailer 17
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€1,319 EUR
$1,474 USD
View
B+
Retailer 18
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€1,355 EUR
$1,514 USD
View
B+
Retailer 19
-
€1,430 EUR
$1,598 USD
View
B
Retailer 20
-
€1,550 EUR
$1,732 USD
View
Most Expensive
B+
MOH London
LG735517685 · Oct 29
€1,612 EUR
£1,418 GBP
View
20 more retailers have this diamond
Prices start from €331 EURSave up to €1,281 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
€331 EUR