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Heart|Lab Grown|IGI

1.05ct E IF Heart Lab Grown Diamond

E/IF • IGI LG818671056

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818671056

Diamond specifications and retailer prices

From £160 GBP
$214 USD
As of October 30, 2026
Save £763 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £923 GBP at Reve Diamonds · As of October 30, 2026
View at Reve 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) and certified by IGI LG818671056 or 818671056. Listed at 19 retailers as of October 30, 2026, with prices from £160 to £923, a £763 spread on the same certified stone. Reve Diamonds lists it at £923. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818671056
Dimensions6.30 × 7.05 × 4.10 mm
L/W Ratio1.12
Girdle conditionFaceted
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
6.30 mm7.05 mm1.05 ctE / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818671056
Side View
Table 57.0%Crown 31.2°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 58.2%

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: £366 GBP|Low: £155 GBP|High: £930 GBP|Avg: £464 GBP|+8.3%
Retailer 1
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Retailer 17
Reve Diamonds
October 31, 2026
Retailer 4£160 GBP
Retailer 5£178 GBP
Retailer 17£185 GBP
Retailer 7£198 GBP
Retailer 15£198 GBP
Retailer 8£267 GBP
Retailer 13£339 GBP
Retailer 1£366 GBP
Retailer 10£402 GBP
Retailer 16£451 GBP
Retailer 14£483 GBP
Retailer 9£535 GBP
Retailer 2£635 GBP
Retailer 3£637 GBP
Retailer 6£675 GBP
Retailer 11£795 GBP
Retailer 12£796 GBP
Reve Diamonds£923 GBP

43 data points across 18 retailers

19 retailers£160 GBP to £923 GBP

A
Cheapest Retailer
-
£160 GBP
$214 USD
A
Retailer 2
-
£178 GBP
$238 USD
View
Final sale: no returns
A
Retailer 3
-
£185 GBP
$248 USD
View
Retailer 4
-
£198 GBP
$265 USD
View
Price last confirmed 36 days ago
A
Retailer 5
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£198 GBP
$265 USD
View
A
Retailer 6
-
£198 GBP
$265 USD
View
A
Retailer 7
-
£267 GBP
$358 USD
View
A
Retailer 8
-
£339 GBP
ZAR 7,347 ZAR
View
A
Retailer 9
-
£366 GBP
View
B+
Retailer 10
-
£402 GBP
A$828 AUD
View
B+
Retailer 11
-
£451 GBP
$604 USD
View
B+
Retailer 12
-
£483 GBP
A$995 AUD
View
B
Retailer 13
-
£535 GBP
SGD 969 SGD
View
B
Retailer 14
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£635 GBP
$851 USD
View
B
Retailer 15
-
£637 GBP
$854 USD
View
B
Retailer 16
-
£675 GBP
$904 USD
View
B
Retailer 17
-
£795 GBP
A$1,639 AUD
View
B
Retailer 18
-
£796 GBP
View
Most Expensive
B
Reve Diamonds
D9C88CE78 · Oct 30
£923 GBP
$1,237 USD
View
18 more retailers have this diamond
Prices start from £160 GBPSave up to £763 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
£160 GBP