CaratHunter
Plans
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 $418 AUD
As of November 6, 2026
Save $1,288 AUD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,706 AUD 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 $418 to $1,706, a $1,288 spread on the same certified stone. MOH London lists it at $1,706. 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

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: Nov 6
Current: $1,706 AUD|Low: $418 AUD|High: $1,878 AUD|Avg: $977 AUD|-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$418 AUD
Retailer 11$463 AUD
Retailer 5$694 AUD
Retailer 10$706 AUD
Retailer 8$720 AUD
Retailer 2$796 AUD
Retailer 6$902 AUD
Retailer 4$1,113 AUD
Retailer 7$1,374 AUD
Retailer 9$1,444 AUD
MOH London$1,706 AUD

42 data points across 11 retailers

11 retailers$418 AUD to $1,706 AUD

A
Cheapest Retailer
-
$418 AUD
Final sale: no returns
Retailer 2
-
$457 AUD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$694 AUD
View
B+
Retailer 4
-
$720 AUD
View
B+
Retailer 5
-
$796 AUD
View
B+
Retailer 6
-
$902 AUD
View
B+
Retailer 7
-
$1,113 AUD
View
B
Retailer 8
-
$1,348 AUD
View
B
Retailer 9
-
$1,374 AUD
View
B
Retailer 10
-
$1,444 AUD
View
Most Expensive
B
MOH London
LG519255515 · Nov 2
$1,706 AUD
£923 GBP
View
10 more retailers have this diamond
Prices start from $418 AUDSave up to $1,288 AUD

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
$418 AUD