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Heart|Lab Grown|IGI

1.00ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG717583848

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG717583848

Diamond specifications and retailer prices

From £240 GBP
$321 USD
As of October 25, 2026
Save £717 GBP (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £956 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct 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 LG717583848 or 717583848. Listed at 7 retailers as of October 25, 2026, with prices from £240 to £956, a £717 spread on the same certified stone. MOH London lists it at £956. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717583848
Dimensions6.15 × 7.11 × 3.93 mm
L/W Ratio1.16
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
6.15 mm7.11 mm1.00 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717583848
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 55.3%

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 25
Current: £956 GBP|Low: £142 GBP|High: £972 GBP|Avg: £466 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8£142 GBP
Retailer 6£240 GBP
Retailer 5£322 GBP
Retailer 3£408 GBP
Retailer 7£427 GBP
Retailer 2£452 GBP
Retailer 4£801 GBP
MOH London£956 GBP

41 data points across 8 retailers

7 retailers£240 GBP to £956 GBP

A
Cheapest Retailer
-
£240 GBP
$321 USD
A
Retailer 2
-
£322 GBP
$432 USD
View
A
Retailer 3
-
£408 GBP
ZAR 8,825 ZAR
View
B+
Retailer 4
-
£427 GBP
$572 USD
View
B+
Retailer 5
-
£452 GBP
View
B
Retailer 6
-
£801 GBP
$1,074 USD
View
Most Expensive
B
MOH London
LG717583848 · Oct 29
£956 GBP
View
6 more retailers have this diamond
Prices start from £240 GBPSave up to £717 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
1.00ct Heart
£240 GBP