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Heart|Lab Grown|IGI

1.03ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG823652306

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG823652306

Diamond specifications and retailer prices

From £249 GBP
$333 USD
As of October 30, 2026
Save £864 GBP (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,113 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.03ct lab-grown heart diamond

This 1.03ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823652306 or 823652306. Listed at 13 retailers as of October 29, 2026, with prices from £249 to £1,113, a £864 spread on the same certified stone. MOH London lists it at £1,113. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823652306
Dimensions5.99 × 7.03 × 4.13 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
5.99 mm7.03 mm1.03 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823652306
Side View
Table 62.0%Crown 34.4°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,113 GBP|Low: £249 GBP|High: £1,167 GBP|Avg: £682 GBP|-4.6%
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 31, 2026
Retailer 12£249 GBP
Retailer 6£372 GBP
Retailer 11£392 GBP
Retailer 9£459 GBP
Retailer 4£477 GBP
Retailer 7£490 GBP
Retailer 3£678 GBP
Retailer 5£822 GBP
Retailer 2£849 GBP
Retailer 10£924 GBP
Retailer 8£987 GBP
Retailer 13£1,100 GBP
MOH London£1,113 GBP

23 data points across 13 retailers

13 retailers£249 GBP to £1,113 GBP

A
Cheapest Retailer
-
£249 GBP
$333 USD
Final sale: no returns
A
Retailer 2
-
£372 GBP
$498 USD
View
A
Retailer 3
-
£392 GBP
$525 USD
View
B+
Retailer 4
-
£459 GBP
$615 USD
View
B+
Retailer 5
-
£477 GBP
ZAR 10,330 ZAR
View
B+
Retailer 6
-
£490 GBP
View
B+
Retailer 7
-
£678 GBP
A$1,397 AUD
View
B+
Retailer 8
-
£822 GBP
A$1,694 AUD
View
B
Retailer 9
-
£849 GBP
$1,137 USD
View
B
Retailer 10
-
£924 GBP
$1,238 USD
View
B
Retailer 11
-
£987 GBP
$1,323 USD
View
B
Retailer 12
-
£1,100 GBP
SGD 1,991 SGD
View
Most Expensive
B
MOH London
LG823652306 · Oct 29
£1,113 GBP
View
12 more retailers have this diamond
Prices start from £249 GBPSave up to £864 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
1.03ct Heart
£249 GBP