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Heart|Lab Grown|IGI

1.05ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG628401226

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628401226

Diamond specifications and retailer prices

From £171 GBP
$229 USD
As of October 30, 2026
Save £1,471 GBP (90%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £1,642 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.05ct lab-grown heart diamond

This 1.05ct 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 LG628401226 or 628401226. Listed at 28 retailers as of October 30, 2026, with prices from £171 to £1,642, a £1,471 spread on the same certified stone. Do Amore Diamonds lists it at £1,642. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628401226
Dimensions6.40 × 7.04 × 3.97 mm
L/W Ratio1.10
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
6.40 mm7.04 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628401226
Side View
Table 61.0%Crown 38.7°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 56.4%

Caratlytics Score

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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: £1,642 GBP|Low: £171 GBP|High: £1,970 GBP|Avg: £634 GBP|-16.7%
Do Amore Diamonds
Retailer 2
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Retailer 19
October 30, 2026
Retailer 18£171 GBP
Retailer 15£191 GBP
Retailer 8£325 GBP
Retailer 19£332 GBP
Retailer 11£336 GBP
Retailer 5£355 GBP
Retailer 7£387 GBP
Retailer 13£393 GBP
Retailer 16£402 GBP
Retailer 2£446 GBP
Retailer 6£517 GBP
Retailer 17£684 GBP
Retailer 10£788 GBP
Retailer 12£822 GBP
Retailer 9£880 GBP
Retailer 14£943 GBP
Retailer 4£960 GBP
Retailer 3£1,030 GBP
Do Amore Diamonds£1,642 GBP

40 data points across 19 retailers

28 retailers£171 GBP to £1,642 GBP

A
Cheapest Retailer
-
£171 GBP
$229 USD
Retailer 2
-
£171 GBP
$229 USD
View
Price last confirmed 22 days ago
Retailer 3
-
£171 GBP
$229 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£191 GBP
$256 USD
View
Final sale: no returns
Retailer 5
-
£212 GBP
$284 USD
View
Price last confirmed 27 days ago
Retailer 6
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£212 GBP
$284 USD
View
Price last confirmed 20 days ago
Retailer 7
-
£222 GBP
$297 USD
View
Price last confirmed 31 days ago
Retailer 8
-
£257 GBP
$345 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£272 GBP
$364 USD
View
Price last confirmed 33 days ago
A
Retailer 10
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£325 GBP
HK$3,400 HKD
View
A
Retailer 11
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£332 GBP
$445 USD
View
A
Retailer 12
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£355 GBP
$475 USD
View
A
Retailer 13
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£387 GBP
$518 USD
View
A
Retailer 14
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£393 GBP
€501 EUR
View
A
Retailer 15
-
£402 GBP
ZAR 8,706 ZAR
View
B+
Retailer 16
-
£446 GBP
View
B+
Retailer 17
-
£517 GBP
$693 USD
View
B+
Retailer 18
-
£684 GBP
$917 USD
View
Retailer 19
-
£752 GBP
$1,008 USD
View
Price last confirmed 20 days ago
B+
Retailer 20
-
£752 GBP
$1,008 USD
View
B+
Retailer 21
-
£788 GBP
SGD 1,427 SGD
View
B
Retailer 22
-
£822 GBP
A$1,694 AUD
View
B
Retailer 23
-
£880 GBP
$1,179 USD
View
B+
Retailer 24
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£943 GBP
View
B+
Retailer 25
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£960 GBP
$1,286 USD
View
Retailer 26
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£976 GBP
$1,308 USD
View
Price last confirmed 30 days ago
B
Retailer 27
-
£1,030 GBP
$1,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-35CA08263 · Oct 31
£1,642 GBP
$2,200 USD
View
27 more retailers have this diamond
Prices start from £171 GBPSave up to £1,471 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
£171 GBP