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Heart|Lab Grown|IGI

3.03ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG627421482

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG627421482

Diamond specifications and retailer prices

From £1,213 GBP
$1,615 USD
As of October 29, 2026
Save £3,466 GBP (74%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,678 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.03ct lab-grown heart diamond

This 3.03ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG627421482 or 627421482. Listed at 21 retailers as of October 28, 2026, with prices from £1,213 to £4,678, a £3,466 spread on the same certified stone. Brilliant Earth lists it at £4,678. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.03
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627421482
Dimensions10.14 × 10.14 × 8.95 mm
L/W Ratio1.00
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
10.14 mm10.14 mm3.03 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627421482
Side View
Table 61.0%Crown 36.7°Girdle: STK-THKPavilion 38.8°Culet: NoneDepth 57.9%

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 29
Current: £4,678 GBP|Low: £748 GBP|High: £4,813 GBP|Avg: £2,526 GBP|-2.8%
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 30, 2026
Retailer 10£1,213 GBP
Retailer 3£1,325 GBP
Retailer 2£1,530 GBP
Retailer 9£1,584 GBP
Retailer 11£1,633 GBP
Retailer 14£2,080 GBP
Retailer 12£2,275 GBP
Retailer 7£2,521 GBP
Retailer 4£2,808 GBP
Retailer 13£2,983 GBP
Retailer 6£3,404 GBP
Retailer 8£3,508 GBP
Retailer 5£3,809 GBP
Brilliant Earth£4,678 GBP

37 data points across 14 retailers

21 retailers£1,213 GBP to £4,678 GBP

Retailer 1
-
£936 GBP
$1,247 USD
Price last confirmed 21 days ago
Retailer 2
-
£1,018 GBP
$1,356 USD
View
Price last confirmed 31 days ago
Retailer 3
-
£1,071 GBP
$1,426 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£1,086 GBP
$1,446 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£1,086 GBP
$1,446 USD
View
Price last confirmed 26 days ago
A
Retailer 6
-
£1,213 GBP
$1,615 USD
View
A
Retailer 7
-
£1,325 GBP
$1,765 USD
View
A
Retailer 8
-
£1,530 GBP
View
A
Retailer 9
-
£1,584 GBP
$2,109 USD
View
Final sale: no returns
A
Retailer 10
-
£1,633 GBP
$2,175 USD
View
Retailer 11
-
£2,035 GBP
$2,710 USD
View
Price last confirmed 29 days ago
A
Retailer 12
-
£2,080 GBP
$2,770 USD
View
A
Retailer 13
-
£2,275 GBP
$3,030 USD
View
A
Retailer 14
-
£2,521 GBP
ZAR 54,242 ZAR
View
B+
Retailer 15
-
£2,808 GBP
$3,739 USD
View
B+
Retailer 16
-
£2,983 GBP
$3,972 USD
View
B+
Retailer 17
-
£3,116 GBP
$4,150 USD
View
B+
Retailer 18
-
£3,404 GBP
$4,533 USD
View
B+
Retailer 19
-
£3,508 GBP
View
B+
Retailer 20
-
£3,809 GBP
$5,072 USD
View
Most Expensive
B
Brilliant Earth
9992087A · Oct 28
£4,678 GBP
$6,230 USD
View
20 more retailers have this diamond
Prices start from £1,213 GBPSave up to £3,466 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
3.03ct Heart
£1,213 GBP