CaratHunter
Plans
Heart|Lab Grown|IGI

1.58ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG526266743

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG526266743

Diamond specifications and retailer prices

From £241 GBP
$322 USD
As of October 30, 2026
Save £1,304 GBP (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,545 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.58ct lab-grown heart diamond

This 1.58ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526266743 or 526266743. Listed at 9 retailers as of October 30, 2026, with prices from £241 to £1,545, a £1,304 spread on the same certified stone. Do Amore Diamonds lists it at £1,545. 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

1.58
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526266743
Dimensions7.20 × 7.95 × 4.86 mm
L/W Ratio1.10
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
7.20 mm7.95 mm1.58 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526266743
Side View
Table 62.5%Crown 41.6°Girdle: MED-STKPavilion 44°Culet: NoneDepth 61.1%

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 30
Current: £1,545 GBP|Low: £134 GBP|High: £1,545 GBP|Avg: £530 GBP
Do Amore Diamonds
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 31, 2026
Retailer 13£134 GBP
Retailer 10£241 GBP
Retailer 11£268 GBP
Retailer 8£290 GBP
Retailer 12£295 GBP
Retailer 3£332 GBP
Retailer 2£353 GBP
Retailer 9£457 GBP
Retailer 5£462 GBP
Retailer 7£643 GBP
Retailer 6£883 GBP
Retailer 4£1,014 GBP
Do Amore Diamonds£1,545 GBP

15 data points across 13 retailers

9 retailers£241 GBP to £1,545 GBP

A
Cheapest Retailer
-
£241 GBP
$322 USD
B+
Retailer 2
-
£268 GBP
$359 USD
View
A
Retailer 3
-
£290 GBP
$389 USD
View
A
Retailer 4
-
£295 GBP
$395 USD
View
A
Retailer 5
-
£353 GBP
€450 EUR
View
B+
Retailer 6
-
£457 GBP
$612 USD
View
B
Retailer 7
-
£643 GBP
$862 USD
View
B
Retailer 8
-
£883 GBP
View
Most Expensive
B
Do Amore Diamonds
27-300243FD5 · Oct 31
£1,545 GBP
$2,070 USD
View
8 more retailers have this diamond
Prices start from £241 GBPSave up to £1,304 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
1.58ct Heart
£241 GBP