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Round|Lab Grown|IGI

1.54ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG837654678

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837654678

Diamond specifications and retailer prices

From $591 AUD
$415 USD
As of October 28, 2026
Save $986 AUD (63%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,577 AUD at MOH London · As of October 26, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG837654678 or 837654678. Listed at 4 retailers as of October 26, 2026, with prices from $591 to $1,577, a $986 spread on the same certified stone. MOH London lists it at $1,577. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837654678
Dimensions7.48 × 7.45 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.45 mm1.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837654678
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,577 AUD|Low: $555 AUD|High: $1,593 AUD|Avg: $847 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 3$591 AUD
Retailer 2$607 AUD
Retailer 4$665 AUD
MOH London$1,577 AUD

21 data points across 4 retailers

4 retailers$591 AUD to $1,577 AUD

B+
Cheapest Retailer
-
$591 AUD
$415 USD
A
Retailer 2
-
$607 AUD
£336 GBP
View
A
Retailer 3
-
$665 AUD
$467 USD
View
Most Expensive
B
MOH London
LG837654678 · Oct 26
$1,577 AUD
£872 GBP
View
3 more retailers have this diamond
Prices start from $591 AUDSave up to $986 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
1.54ct Round
$591 AUD