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1.53ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG492133924

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492133924

Diamond specifications and retailer prices

From $1,508 NZD
$850 USD
As of October 31, 2026
Save $6,361 NZD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,869 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492133924 or 492133924. Listed at 11 retailers as of October 29, 2026, with prices from $1,508 to $7,869, a $6,361 spread on the same certified stone. MOH London lists it at $7,869. 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
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492133924
Dimensions7.37 × 7.34 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
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
7.37 mm7.34 mm1.53 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492133924
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.5%

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 31
Current: $7,869 NZD|Low: $1,508 NZD|High: $7,932 NZD|Avg: $3,486 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,508 NZD
Retailer 3$2,101 NZD
Retailer 6$2,349 NZD
Retailer 4$2,436 NZD
Retailer 10$2,637 NZD
Retailer 7$2,741 NZD
Retailer 9$3,456 NZD
Retailer 5$3,866 NZD
Retailer 8$4,801 NZD
MOH London$7,869 NZD

16 data points across 10 retailers

11 retailers$1,508 NZD to $7,869 NZD

A
Cheapest Retailer
-
$1,508 NZD
$850 USD
B+
Retailer 2
-
$2,101 NZD
$1,184 USD
View
B+
Retailer 3
-
$2,285 NZD
$1,288 USD
View
B+
Retailer 4
-
$2,349 NZD
$1,324 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,436 NZD
$1,373 USD
View
Retailer 6
-
$2,436 NZD
$1,373 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$2,741 NZD
$1,545 USD
View
B
Retailer 8
-
$3,866 NZD
$2,179 USD
View
B
Retailer 9
-
$4,567 NZD
$2,574 USD
View
B
Retailer 10
-
$4,801 NZD
$2,706 USD
View
Most Expensive
B
MOH London
LG492133924 · Oct 29
$7,869 NZD
£3,492 GBP
View
10 more retailers have this diamond
Prices start from $1,508 NZDSave up to $6,361 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 Round
$1,508 NZD