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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 $518 NZD
As of November 6, 2026
Save $1,597 NZD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,115 NZD 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 $518 to $2,115, a $1,597 spread on the same certified stone. MOH London lists it at $2,115. 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,115 NZD|Low: $518 NZD|High: $2,328 NZD|Avg: $1,211 NZD|-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$518 NZD
Retailer 11$574 NZD
Retailer 5$860 NZD
Retailer 10$875 NZD
Retailer 8$893 NZD
Retailer 2$987 NZD
Retailer 6$1,118 NZD
Retailer 4$1,380 NZD
Retailer 7$1,703 NZD
Retailer 9$1,789 NZD
MOH London$2,115 NZD

42 data points across 11 retailers

11 retailers$518 NZD to $2,115 NZD

A
Cheapest Retailer
-
$518 NZD
Final sale: no returns
Retailer 2
-
$566 NZD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$860 NZD
View
B+
Retailer 4
-
$893 NZD
View
B+
Retailer 5
-
$987 NZD
View
B+
Retailer 6
-
$1,118 NZD
View
B+
Retailer 7
-
$1,380 NZD
View
B
Retailer 8
-
$1,670 NZD
View
B
Retailer 9
-
$1,703 NZD
View
B
Retailer 10
-
$1,789 NZD
View
Most Expensive
B
MOH London
LG519255515 · Nov 2
$2,115 NZD
£923 GBP
View
10 more retailers have this diamond
Prices start from $518 NZDSave up to $1,597 NZD

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
$518 NZD