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Heart|Lab Grown|IGI

1.03ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG593304053

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG593304053

Diamond specifications and retailer prices

From £223 GBP
$299 USD
As of October 30, 2026
Save £890 GBP (80%) vs most expensive(unlock to see where)
21 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 LG593304053 or 593304053. Listed at 21 retailers as of October 29, 2026, with prices from £223 to £1,113, a £890 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 angle36.9°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593304053
Dimensions6.59 × 6.87 × 4.08 mm
L/W Ratio1.04
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
6.59 mm6.87 mm1.03 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593304053
Side View
Table 56.0%Crown 36.9°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 59.4%

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: £1,113 GBP|Low: £223 GBP|High: £1,136 GBP|Avg: £545 GBP|-2.1%
MOH London
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October 31, 2026
Retailer 9£223 GBP
Retailer 17£249 GBP
Retailer 6£258 GBP
Retailer 15£276 GBP
Retailer 13£293 GBP
Retailer 5£372 GBP
Retailer 7£392 GBP
Retailer 18£455 GBP
Retailer 8£459 GBP
Retailer 4£475 GBP
Retailer 2£490 GBP
Retailer 16£502 GBP
Retailer 3£674 GBP
Retailer 12£711 GBP
Retailer 19£888 GBP
Retailer 10£924 GBP
Retailer 14£987 GBP
Retailer 11£1,022 GBP
MOH London£1,113 GBP

28 data points across 19 retailers

21 retailers£223 GBP to £1,113 GBP

A
Cheapest Retailer
-
£223 GBP
$299 USD
A
Retailer 2
-
£249 GBP
$333 USD
View
Final sale: no returns
A
Retailer 3
-
£258 GBP
$346 USD
View
A
Retailer 4
-
£276 GBP
$370 USD
View
A
Retailer 5
-
£282 GBP
$378 USD
View
A
Retailer 6
-
£293 GBP
View
A
Retailer 7
-
£372 GBP
$498 USD
View
A
Retailer 8
-
£392 GBP
$525 USD
View
B+
Retailer 9
-
£455 GBP
$610 USD
View
B+
Retailer 10
-
£459 GBP
$615 USD
View
B+
Retailer 11
-
£475 GBP
ZAR 10,276 ZAR
View
B+
Retailer 12
-
£490 GBP
View
B+
Retailer 13
-
£502 GBP
€641 EUR
View
B+
Retailer 14
-
£674 GBP
A$1,389 AUD
View
B+
Retailer 15
-
£711 GBP
$953 USD
View
Retailer 16
-
£859 GBP
A$1,771 AUD
View
Price last confirmed 144 days ago
B
Retailer 17
-
£888 GBP
$1,190 USD
View
B
Retailer 18
-
£924 GBP
$1,238 USD
View
B
Retailer 19
-
£987 GBP
$1,323 USD
View
B
Retailer 20
-
£1,022 GBP
$1,370 USD
View
Most Expensive
B
MOH London
LG593304053 · Oct 29
£1,113 GBP
View
20 more retailers have this diamond
Prices start from £223 GBPSave up to £890 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
£223 GBP