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Heart|Lab Grown|IGI

1.34ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG717527342

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG717527342

Diamond specifications and retailer prices

From £396 GBP
$535 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: £396 GBP at Loose Grown Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Loose Grown Diamond

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG717527342 or 717527342. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.34
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717527342
Dimensions6.72 × 7.63 × 4.54 mm
L/W Ratio1.14
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
6.72 mm7.63 mm1.34 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717527342
Side View
Table 62.0%Crown 37°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £396 GBP|Low: £356 GBP|High: £1,605 GBP|Avg: £784 GBP|-14.3%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
August 26, 2026
Loose Grown Diamond£396 GBP
Retailer 5£419 GBP
Retailer 2£554 GBP
Retailer 4£816 GBP
Retailer 6£1,011 GBP
Retailer 3£1,244 GBP

49 data points across 6 retailers

1 retailer

A
Loose Grown Diamond
717527342 · Nov 1
£396 GBP
$535 USD
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A
1.34ct Heart
£396 GBP