CaratHunter
Plans
Radiant|Lab Grown|IGI

1.56ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG614315354

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG614315354

Diamond specifications and retailer prices

From £135 GBP
$180 USD
As of October 27, 2026
Save £651 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £786 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant 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 LG614315354 or 614315354. Listed at 11 retailers as of October 27, 2026, with prices from £135 to £786, a £651 spread on the same certified stone. MOH London lists it at £786. 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

1.56
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614315354
Dimensions8.16 × 5.71 × 3.80 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.16 mm5.71 mm1.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614315354
Side View
Table 64.0%Crown 44.5°Girdle: STK-THKPavilion 35°Culet: NoneDepth 66.5%

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: £786 GBP|Low: £135 GBP|High: £1,464 GBP|Avg: £424 GBP
MOH London
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 3£135 GBP
Retailer 14£156 GBP
Retailer 8£167 GBP
Retailer 12£192 GBP
Retailer 2£215 GBP
Retailer 4£254 GBP
Retailer 13£297 GBP
Retailer 7£301 GBP
Retailer 11£354 GBP
Retailer 9£363 GBP
Retailer 10£538 GBP
Retailer 5£585 GBP
MOH London£786 GBP
Retailer 6£1,464 GBP

4 data points across 14 retailers

11 retailers£135 GBP to £786 GBP

A
Cheapest Retailer
-
£135 GBP
$180 USD
A
Retailer 2
-
£156 GBP
$208 USD
View
A
Retailer 3
-
£167 GBP
$223 USD
View
A
Retailer 4
-
£192 GBP
HK$2,000 HKD
View
A
Retailer 5
-
£215 GBP
View
B+
Retailer 6
-
£297 GBP
$395 USD
View
A
Retailer 7
-
£301 GBP
View
A
Retailer 8
-
£354 GBP
$472 USD
View
A
Retailer 9
-
£363 GBP
$484 USD
View
B+
Retailer 10
-
£538 GBP
$716 USD
View
Most Expensive
B
MOH London
LG614315354 · Oct 29
£786 GBP
View
10 more retailers have this diamond
Prices start from £135 GBPSave up to £651 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
1.56ct Radiant
£135 GBP