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Heart|Lab Grown|IGI

1.03ct E FL Heart Lab Grown Diamond

ID • E/FL • IGI LG818681463

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818681463

Diamond specifications and retailer prices

From £176 GBP
$235 USD
As of October 27, 2026
Save £1,513 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,690 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818681463 or 818681463. Listed at 12 retailers as of October 27, 2026, with prices from £176 to £1,690, a £1,513 spread on the same certified stone. Do Amore Diamonds lists it at £1,690. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818681463
Dimensions6.36 × 6.74 × 4.14 mm
L/W Ratio1.06
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
6.36 mm6.74 mm1.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818681463
Side View
Table 57.0%Crown 37.3°Girdle: Slightly ThickPavilion 39.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,690 GBP|Low: £176 GBP|High: £2,245 GBP|Avg: £755 GBP|-24.7%
Do Amore Diamonds
Retailer 2
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 10£176 GBP
Retailer 14£204 GBP
Retailer 8£256 GBP
Retailer 3£357 GBP
Retailer 4£360 GBP
Retailer 12£370 GBP
Retailer 2£420 GBP
Retailer 9£604 GBP
Retailer 11£704 GBP
Retailer 13£775 GBP
Retailer 7£972 GBP
Retailer 6£1,398 GBP
Retailer 5£1,614 GBP
Do Amore Diamonds£1,690 GBP

30 data points across 14 retailers

12 retailers£176 GBP to £1,690 GBP

A
Cheapest Retailer
-
£176 GBP
$235 USD
A
Retailer 2
-
£204 GBP
$272 USD
View
A
Retailer 3
-
£256 GBP
View
A
Retailer 4
-
£357 GBP
$476 USD
View
A
Retailer 5
-
£370 GBP
$493 USD
View
A
Retailer 6
-
£420 GBP
€533 EUR
View
B+
Retailer 7
-
£604 GBP
A$1,238 AUD
View
B+
Retailer 8
-
£704 GBP
$938 USD
View
B+
Retailer 9
-
£775 GBP
$1,032 USD
View
B
Retailer 10
-
£972 GBP
View
B
Retailer 11
-
£1,614 GBP
$2,150 USD
View
Most Expensive
B
Do Amore Diamonds
27-DCF1FC5A6 · Oct 29
£1,690 GBP
$2,250 USD
View
11 more retailers have this diamond
Prices start from £176 GBPSave up to £1,513 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
£176 GBP