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Radiant|Lab Grown|IGI

1.53ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG519255515

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

Certificate IGI LG519255515

Diamond specifications and retailer prices

From £214 GBP
As of November 6, 2026
Save £661 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £876 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.53ct lab-grown radiant diamond

This 1.53ct 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 LG519255515 or 519255515. Listed at 11 retailers as of November 2, 2026, with prices from £214 to £876, a £661 spread on the same certified stone. MOH London lists it at £876. 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

1.53
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519255515
Dimensions8.09 × 5.59 × 3.79 mm
L/W Ratio1.45
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
8.09 mm5.59 mm1.53 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519255515
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 31.4°Culet: NoneDepth 67.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £876 GBP|Low: £214 GBP|High: £964 GBP|Avg: £502 GBP|-9.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£214 GBP
Retailer 11£238 GBP
Retailer 5£356 GBP
Retailer 10£362 GBP
Retailer 8£370 GBP
Retailer 2£409 GBP
Retailer 6£463 GBP
Retailer 4£572 GBP
Retailer 7£705 GBP
Retailer 9£741 GBP
MOH London£876 GBP

42 data points across 11 retailers

11 retailers£214 GBP to £876 GBP

A
Cheapest Retailer
-
£214 GBP
Final sale: no returns
Retailer 2
-
£235 GBP
View
Price last confirmed 43 days ago
A
Retailer 3
-
£356 GBP
View
B+
Retailer 4
-
£370 GBP
View
B+
Retailer 5
-
£409 GBP
View
B+
Retailer 6
-
£463 GBP
View
B+
Retailer 7
-
£572 GBP
View
B
Retailer 8
-
£692 GBP
View
B
Retailer 9
-
£705 GBP
View
B
Retailer 10
-
£741 GBP
View
Most Expensive
B
MOH London
LG519255515 · Nov 2
£876 GBP
View
10 more retailers have this diamond
Prices start from £214 GBPSave up to £661 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
1.53ct Radiant
£214 GBP