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1.54ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG483125649

Shape and cutting style on the report: Round brilliant

Certificate IGI LG483125649

Diamond specifications and retailer prices

From $1,508 NZD
$850 USD
As of October 31, 2026
Save $6,823 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,331 NZD at MOH London · As of November 1, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG483125649 or 483125649. Listed at 10 retailers as of October 31, 2026, with prices from $1,508 to $8,331, a $6,823 spread on the same certified stone. MOH London lists it at $8,331. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483125649
Dimensions7.54 × 7.49 × 4.50 mm
L/W Ratio1.01
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
7.54 mm7.49 mm1.54 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483125649
Side View
Table 61.5%Crown 32.5°Girdle: MediumPavilion 41.5°Culet: NoneDepth 60.0%

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: $8,331 NZD|Low: $1,508 NZD|High: $8,430 NZD|Avg: $3,802 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
November 1, 2026
Retailer 2$1,508 NZD
Retailer 5$2,236 NZD
Retailer 9$2,433 NZD
Retailer 8$2,504 NZD
Retailer 6$2,592 NZD
Retailer 3$3,046 NZD
Retailer 12$3,591 NZD
Retailer 7$4,108 NZD
Retailer 11$4,833 NZD
Retailer 10$4,860 NZD
Retailer 4$5,805 NZD
MOH London$8,331 NZD

15 data points across 12 retailers

10 retailers$1,508 NZD to $8,331 NZD

A
Cheapest Retailer
-
$1,508 NZD
$850 USD
B+
Retailer 2
-
$2,236 NZD
$1,260 USD
View
B+
Retailer 3
-
$2,433 NZD
$1,371 USD
View
B+
Retailer 4
-
$2,504 NZD
$1,411 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,592 NZD
$1,461 USD
View
Retailer 6
-
$2,592 NZD
$1,461 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$4,108 NZD
$2,315 USD
View
B
Retailer 8
-
$4,833 NZD
$2,724 USD
View
B
Retailer 9
-
$4,860 NZD
$2,739 USD
View
Most Expensive
B
MOH London
LG483125649 · Nov 1
$8,331 NZD
£3,697 GBP
View
9 more retailers have this diamond
Prices start from $1,508 NZDSave up to $6,823 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
1.54ct Round
$1,508 NZD