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Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $702 AUD
$493 USD
As of October 30, 2026
Save $1,587 AUD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,289 AUD at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 5 retailers as of October 30, 2026, with prices from $702 to $2,289, a $1,587 spread on the same certified stone. NZ Jewellers lists it at $2,289. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions7.42 × 5.68 × 3.88 mm
L/W Ratio1.31
Top View
7.42 mm5.68 mm1.54 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.3%

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 30
Current: $2,289 AUD|Low: $505 AUD|High: $2,289 AUD|Avg: $1,046 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$505 AUD
Retailer 5$702 AUD
Retailer 4$786 AUD
Retailer 3$870 AUD
Retailer 2$969 AUD
Retailer 6$1,616 AUD
NZ Jewellers$2,289 AUD

40 data points across 7 retailers

5 retailers$702 AUD to $2,289 AUD

A
Cheapest Retailer
-
$702 AUD
$493 USD
B+
Retailer 2
-
$786 AUD
$552 USD
View
B+
Retailer 3
-
$870 AUD
$611 USD
View
B+
Retailer 4
-
$969 AUD
£536 GBP
View
Most Expensive
B
NZ Jewellers
1940ab90-0c08-4d6c-8aa6-403f394bc31a · Nov 1
$2,289 AUD
$1,608 USD
View
4 more retailers have this diamond
Prices start from $702 AUDSave up to $1,587 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 Radiant
$702 AUD