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Heart|Lab Grown|IGI

1.05ct F IF Heart Lab Grown Diamond

EX • F/IF • IGI LG839601093

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG839601093

Diamond specifications and retailer prices

From £199 GBP
$267 USD
As of November 1, 2026
Save £234 GBP (54%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £433 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.05ct lab-grown heart diamond

This 1.05ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839601093 or 839601093. Listed at 2 retailers as of November 1, 2026, with prices from £199 to £433, a £234 spread on the same certified stone. 77 Diamonds lists it at £433. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839601093
Dimensions6.07 × 7.10 × 4.22 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.07 mm7.10 mm1.05 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839601093
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £433 GBP|Low: £199 GBP|High: £483 GBP|Avg: £383 GBP|-4.2%
77 Diamonds
Retailer 2
November 2, 2026
Retailer 2£199 GBP
77 Diamonds£433 GBP

34 data points across 2 retailers

2 retailers£199 GBP to £433 GBP

A
Cheapest Retailer
-
£199 GBP
$267 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
HSTVSPWQZGSBV · Nov 2
£433 GBP
View
1 more retailer has this diamond
Prices start from £199 GBPSave up to £234 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
1.05ct Heart
£199 GBP