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Heart|Lab Grown|IGI

1.02ct E FL Heart Lab Grown Diamond

VG • E/FL • IGI LG825655923

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825655923

Diamond specifications and retailer prices

From £257 GBP
$342 USD
As of October 28, 2026
Save £1,358 GBP (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,614 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.02ct lab-grown heart diamond

This 1.02ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825655923 or 825655923. Listed at 18 retailers as of October 28, 2026, with prices from £257 to £1,614, a £1,358 spread on the same certified stone. Brilliant Earth lists it at £1,614. 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

1.02
Carat
E
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655923
Dimensions6.09 × 6.82 × 4.04 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
6.09 mm6.82 mm1.02 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655923
Side View
Table 58.0%Crown 37.5°Girdle: STK-THKPavilion 37.6°Culet: NoneDepth 59.2%

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 28
Current: £1,614 GBP|Low: £257 GBP|High: £1,622 GBP|Avg: £798 GBP|-0.5%
Brilliant Earth
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 29, 2026
Retailer 3£257 GBP
Retailer 7£303 GBP
Retailer 9£402 GBP
Retailer 12£456 GBP
Retailer 11£477 GBP
Retailer 8£489 GBP
Retailer 2£505 GBP
Retailer 13£640 GBP
Retailer 4£951 GBP
Retailer 5£996 GBP
Retailer 6£1,147 GBP
Retailer 10£1,150 GBP
Brilliant Earth£1,614 GBP

25 data points across 13 retailers

18 retailers£257 GBP to £1,614 GBP

A
Cheapest Retailer
-
£257 GBP
$342 USD
Final sale: no returns
Retailer 2
-
£287 GBP
$382 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
£303 GBP
View
Retailer 4
-
£321 GBP
$427 USD
View
Price last confirmed 30 days ago
Retailer 5
-
£355 GBP
$473 USD
View
Price last confirmed 26 days ago
Retailer 6
-
£355 GBP
$473 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£402 GBP
$535 USD
View
B+
Retailer 8
-
£456 GBP
$607 USD
View
B+
Retailer 9
-
£477 GBP
$635 USD
View
B+
Retailer 10
-
£489 GBP
ZAR 10,525 ZAR
View
B+
Retailer 11
-
£505 GBP
View
B+
Retailer 12
-
£640 GBP
$852 USD
View
B
Retailer 13
-
£951 GBP
$1,266 USD
View
B
Retailer 14
-
£996 GBP
$1,327 USD
View
Retailer 15
-
£1,142 GBP
$1,521 USD
View
Price last confirmed 29 days ago
B
Retailer 16
-
£1,147 GBP
View
B
Retailer 17
-
£1,150 GBP
$1,531 USD
View
Most Expensive
B
Brilliant Earth
21580927A · Oct 28
£1,614 GBP
$2,150 USD
View
17 more retailers have this diamond
Prices start from £257 GBPSave up to £1,358 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
1.02ct Heart
£257 GBP