Heart|Lab Grown|IGI

3.07ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG658493577

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG658493577

Diamond specifications and retailer prices

From £381 GBP
$511 USD
As of October 25, 2026
Save £1,432 GBP (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,814 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.07ct lab-grown heart diamond

This 3.07ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG658493577 or 658493577. Listed at 12 retailers as of October 25, 2026, with prices from £381 to £1,814, a £1,432 spread on the same certified stone. Brilliant Earth lists it at £1,814. 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

3.07
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658493577
Dimensions8.76 × 10.22 × 6.01 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.76 mm10.22 mm3.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658493577
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 58.8%

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 25
Current: £1,814 GBP|Low: £325 GBP|High: £3,530 GBP|Avg: £1,029 GBP|-48.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5£381 GBP
Retailer 7£469 GBP
Retailer 4£489 GBP
Retailer 10£602 GBP
Retailer 2£627 GBP
Retailer 8£663 GBP
Retailer 9£766 GBP
Retailer 6£1,069 GBP
Retailer 3£1,497 GBP
Brilliant Earth£1,814 GBP

33 data points across 10 retailers

12 retailers£381 GBP to £1,814 GBP

Retailer 1
-
£321 GBP
$430 USD
Price last confirmed 33 days ago
Retailer 2
-
£381 GBP
$511 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£381 GBP
$511 USD
View
Retailer 4
-
£469 GBP
View
Price last confirmed 14 days ago
A
Retailer 5
-
£489 GBP
$655 USD
View
B+
Retailer 6
-
£602 GBP
$806 USD
View
A
Retailer 7
-
£627 GBP
View
B+
Retailer 8
-
£663 GBP
$889 USD
View
B+
Retailer 9
-
£766 GBP
$1,026 USD
View
B
Retailer 10
-
£1,069 GBP
$1,432 USD
View
B
Retailer 11
-
£1,497 GBP
View
Most Expensive
B
Brilliant Earth
11923740A · Oct 30
£1,814 GBP
$2,430 USD
View
11 more retailers have this diamond
Prices start from £381 GBPSave up to £1,432 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
3.07ct Heart
£381 GBP