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Heart|Lab Grown|IGI

0.78ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG839640558

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839640558

Diamond specifications and retailer prices

From £167 GBP
$224 USD
As of October 30, 2026
Save £525 GBP (76%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £692 GBP at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839640558 or 839640558. Listed at 5 retailers as of October 29, 2026, with prices from £167 to £692, a £525 spread on the same certified stone. Taylor and Hart lists it at £692. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.78
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839640558
Dimensions6.32 × 5.62 × 3.73 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.32 mm5.62 mm0.78 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839640558
Side View
Table 64.0%Crown 34.6°Girdle: MED-THKPavilion 42.7°Culet: NoneDepth 59.0%

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: £318 GBP|Low: £167 GBP|High: £692 GBP|Avg: £341 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 30, 2026
Retailer 2£167 GBP
Retailer 4£215 GBP
Retailer 3£285 GBP
Retailer 1£318 GBP
Taylor and Hart£692 GBP

3 data points across 5 retailers

5 retailers£167 GBP to £692 GBP

A
Cheapest Retailer
-
£167 GBP
$224 USD
B+
Retailer 2
-
£215 GBP
$288 USD
View
B+
Retailer 3
-
£285 GBP
$382 USD
View
B+
Retailer 4
-
£318 GBP
View
Most Expensive
B
Taylor and Hart
SDO14TL · Oct 29
£692 GBP
$928 USD
View
4 more retailers have this diamond
Prices start from £167 GBPSave up to £525 GBP

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
0.78ct Heart
£167 GBP