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Heart|Lab Grown|IGI

1.34ct F IF Heart Lab Grown Diamond

EX • F/IF • IGI LG683536431

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG683536431

Diamond specifications and retailer prices

From €253 EUR
As of November 6, 2026
Save €1,000 EUR (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €2,203 EUR at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.34ct lab-grown heart diamond

This 1.34ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683536431 or 683536431. Listed at 19 retailers as of November 5, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.34
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683536431
Dimensions6.87 × 7.54 × 4.50 mm
L/W Ratio1.10
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
6.87 mm7.54 mm1.34 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683536431
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €2,203 EUR|Low: €243 EUR|High: €2,203 EUR|Avg: €697 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 7, 2026
Retailer 3€253 EUR
Retailer 4€313 EUR
Retailer 6€313 EUR
Retailer 8€330 EUR
Retailer 13€423 EUR
Retailer 12€457 EUR
Retailer 14€514 EUR
Retailer 7€531 EUR
Retailer 2€549 EUR
Retailer 11€769 EUR
Retailer 10€964 EUR
Retailer 5€1,009 EUR
Retailer 9€1,253 EUR
Brilliant Earth€2,203 EUR

44 data points across 14 retailers

19 retailers€253 EUR to €1,253 EUR

A
Cheapest Retailer
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€253 EUR
A
Retailer 2
-
€283 EUR
View
Final sale: no returns
A
Retailer 3
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€294 EUR
View
A
Retailer 4
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€313 EUR
View
Retailer 5
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€313 EUR
View
Price last confirmed 13 days ago
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Retailer 6
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€330 EUR
View
A
Retailer 7
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€423 EUR
View
A
Retailer 8
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€457 EUR
View
A
Retailer 9
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€531 EUR
View
A
Retailer 10
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€541 EUR
View
A
Retailer 11
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€549 EUR
View
A
Retailer 12
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€769 EUR
View
A
Retailer 13
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€780 EUR
View
A
Retailer 14
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€878 EUR
View
A
Retailer 15
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€964 EUR
View
B+
Retailer 16
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€1,009 EUR
View
B+
Retailer 17
-
€1,053 EUR
View
B+
Retailer 18
-
€1,253 EUR
View
Most Expensive
Brilliant Earth
21385914A · Oct 8
€2,203 EUR
$2,460 USD
View
Price last confirmed 29 days ago
18 more retailers have this diamond
Prices start from €253 EURSave up to €1,000 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
1.34ct Heart
€253 EUR