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Round|Lab Grown|IGI

1.54ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG492112356

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492112356

Diamond specifications and retailer prices

From $3,275 NZD
As of November 5, 2026
Save $3,846 NZD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,822 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492112356 or 492112356. Listed at 8 retailers as of November 5, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.54
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112356
Dimensions7.48 × 7.51 × 4.52 mm
L/W Ratio1.00
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
7.48 mm7.51 mm1.54 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112356
Side View
Table 57.0%Crown 33.3°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $10,822 NZD|Low: $3,145 NZD|High: $10,996 NZD|Avg: $6,069 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$3,275 NZD
Retailer 6$3,563 NZD
Retailer 4$3,800 NZD
Retailer 8$5,027 NZD
Retailer 5$5,956 NZD
Retailer 2$6,392 NZD
Retailer 7$7,121 NZD
Retailer 9$8,503 NZD
MOH London$10,822 NZD

15 data points across 9 retailers

8 retailers$3,275 NZD to $7,121 NZD

B+
Cheapest Retailer
-
$3,275 NZD
B
Retailer 2
-
$3,563 NZD
View
Retailer 3
-
$3,800 NZD
View
Price last confirmed 25 days ago
B
Retailer 4
-
$3,800 NZD
View
B
Retailer 5
-
$5,956 NZD
View
B
Retailer 6
-
$6,392 NZD
View
B
Retailer 7
-
$7,121 NZD
View
Most Expensive
MOH London
LG492112356 · Nov 5
$10,822 NZD
£4,790 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $3,275 NZDSave up to $3,846 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.

B+
1.54ct Round
$3,275 NZD