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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 $180 USD
As of October 27, 2026
Save $866 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,046 USD 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 $180 to $1,046, a $866 spread on the same certified stone. MOH London lists it at $1,046. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,046 USD|Low: $180 USD|High: $1,950 USD|Avg: $564 USD
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$180 USD
Retailer 14$208 USD
Retailer 8$223 USD
Retailer 12$256 USD
Retailer 2$286 USD
Retailer 4$338 USD
Retailer 13$395 USD
Retailer 7$401 USD
Retailer 11$472 USD
Retailer 9$484 USD
Retailer 10$716 USD
Retailer 5$779 USD
MOH London$1,046 USD
Retailer 6$1,950 USD

4 data points across 14 retailers

11 retailers$180 USD to $1,046 USD

A
Cheapest Retailer
-
$180 USD
A
Retailer 2
-
$208 USD
View
A
Retailer 3
-
$223 USD
View
A
Retailer 4
-
$256 USD
HK$2,000 HKD
View
A
Retailer 5
-
$286 USD
£225 GBP
View
B+
Retailer 6
-
$395 USD
View
A
Retailer 7
-
$401 USD
£316 GBP
View
A
Retailer 8
-
$472 USD
View
A
Retailer 9
-
$484 USD
View
B+
Retailer 10
-
$716 USD
View
Most Expensive
B
MOH London
LG614315354 · Oct 29
$1,046 USD
£824 GBP
View
10 more retailers have this diamond
Prices start from $180 USDSave up to $866 USD

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
$180 USD