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0.54ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG407915209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407915209

Diamond specifications and retailer prices

From $426 NZD
$240 USD
As of November 1, 2026
Save $1,690 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,116 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 0.54ct lab-grown round diamond

This 0.54ct lab-grown round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407915209 or 407915209. Listed at 11 retailers as of November 1, 2026, with prices from $426 to $2,116, a $1,690 spread on the same certified stone. MOH London lists it at $2,116. 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

0.54
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407915209
Dimensions5.38 × 5.33 × 3.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
5.38 mm5.33 mm0.54 ctJ / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407915209
Side View
Table 57.5%Crown 31.6°Girdle: MediumPavilion 40.3°Culet: NoneDepth 58.6%

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 1
Current: $2,116 NZD|Low: $408 NZD|High: $2,141 NZD|Avg: $953 NZD
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
November 1, 2026
Retailer 8$426 NZD
Retailer 12$477 NZD
Retailer 3$493 NZD
Retailer 9$529 NZD
Retailer 11$529 NZD
Retailer 6$603 NZD
Retailer 10$891 NZD
Retailer 5$896 NZD
Retailer 2$1,002 NZD
Retailer 4$1,057 NZD
Retailer 13$1,698 NZD
Retailer 7$1,703 NZD
MOH London$2,116 NZD

23 data points across 13 retailers

11 retailers$426 NZD to $2,116 NZD

A
Cheapest Retailer
-
$426 NZD
$240 USD
B+
Retailer 2
-
$477 NZD
$269 USD
View
Final sale: no returns
B+
Retailer 3
-
$493 NZD
$278 USD
View
B+
Retailer 4
-
$529 NZD
$298 USD
View
Retailer 5
-
$529 NZD
$298 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$603 NZD
$340 USD
View
B+
Retailer 7
-
$891 NZD
$502 USD
View
B+
Retailer 8
-
$1,002 NZD
€538 EUR
View
B
Retailer 9
-
$1,698 NZD
$957 USD
View
B
Retailer 10
-
$1,703 NZD
$960 USD
View
Most Expensive
B
MOH London
LG407915209 · Nov 1
$2,116 NZD
£939 GBP
View
10 more retailers have this diamond
Prices start from $426 NZDSave up to $1,690 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
0.54ct Round
$426 NZD