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Heart|Lab Grown|IGI

5.04ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG516258543

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG516258543

Diamond specifications and retailer prices

From £1,095 GBP
$1,467 USD
As of October 30, 2026
Save £3,389 GBP (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £5,650 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.04ct lab-grown heart diamond

This 5.04ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG516258543 or 516258543. Listed at 23 retailers as of October 30, 2026, with a 310% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.04
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516258543
Dimensions11.79 × 10.43 × 6.77 mm
L/W Ratio1.13
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
11.79 mm10.43 mm5.04 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516258543
Side View
Table 64.5%Crown 38.1°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 57.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £5,650 GBP|Low: £1,095 GBP|High: £11,716 GBP|Avg: £3,264 GBP|-1.8%
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
Retailer 14
October 31, 2026
Retailer 10£1,095 GBP
Retailer 8£1,399 GBP
Retailer 12£1,407 GBP
Retailer 14£1,490 GBP
Retailer 4£1,548 GBP
Retailer 9£1,723 GBP
Retailer 2£1,778 GBP
Retailer 11£1,918 GBP
Retailer 13£2,305 GBP
Retailer 7£3,647 GBP
Retailer 5£4,472 GBP
Retailer 3£4,484 GBP
Retailer 6£5,202 GBP
Brilliant Earth£5,650 GBP

40 data points across 14 retailers

23 retailers£1,095 GBP to £4,484 GBP

B+
Cheapest Retailer
-
£1,095 GBP
$1,467 USD
Retailer 2
-
£1,095 GBP
$1,467 USD
View
Price last confirmed 22 days ago
Retailer 3
-
£1,095 GBP
$1,467 USD
View
Price last confirmed 19 days ago
Retailer 4
-
£1,270 GBP
$1,702 USD
View
Price last confirmed 20 days ago
Retailer 5
-
£1,270 GBP
$1,702 USD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£1,399 GBP
$1,875 USD
View
B+
Retailer 7
-
£1,407 GBP
$1,885 USD
View
Final sale: no returns
B+
Retailer 8
-
£1,490 GBP
$1,996 USD
View
B+
Retailer 9
-
£1,548 GBP
HK$16,200 HKD
View
B+
Retailer 10
-
£1,723 GBP
$2,309 USD
View
B+
Retailer 11
-
£1,778 GBP
View
B
Retailer 12
-
£1,918 GBP
$2,570 USD
View
B
Retailer 13
-
£2,305 GBP
$3,089 USD
View
B
Retailer 14
-
£2,381 GBP
$3,190 USD
View
Retailer 15
-
£2,381 GBP
$3,190 USD
View
Price last confirmed 20 days ago
Retailer 16
-
£2,808 GBP
$3,762 USD
View
Price last confirmed 31 days ago
Retailer 17
-
£2,943 GBP
$3,943 USD
View
Price last confirmed 32 days ago
Retailer 18
-
£3,212 GBP
$4,304 USD
View
Price last confirmed 33 days ago
B
Retailer 19
-
£3,647 GBP
View
Retailer 20
-
£4,070 GBP
$5,454 USD
View
Price last confirmed 30 days ago
B
Retailer 21
-
£4,472 GBP
$5,992 USD
View
B
Retailer 22
-
£4,484 GBP
SGD 8,119 SGD
View
Most Expensive
Brilliant Earth
5511980A · Oct 30
£5,650 GBP
$7,570 USD
View
Price under review
22 more retailers have this diamond
Prices start from £1,095 GBPSave up to £3,389 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.

B+
5.04ct Heart
£1,095 GBP