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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 $875 NZD
$493 USD
As of October 30, 2026
Save $1,978 NZD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,853 NZD 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 $875 to $2,853, a $1,978 spread on the same certified stone. NZ Jewellers lists it at $2,853. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,853 NZD|Low: $630 NZD|High: $2,853 NZD|Avg: $1,305 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$630 NZD
Retailer 5$875 NZD
Retailer 4$979 NZD
Retailer 3$1,084 NZD
Retailer 2$1,207 NZD
Retailer 6$2,014 NZD
NZ Jewellers$2,853 NZD

39 data points across 7 retailers

5 retailers$875 NZD to $2,853 NZD

A
Cheapest Retailer
-
$875 NZD
$493 USD
B+
Retailer 2
-
$979 NZD
$552 USD
View
B+
Retailer 3
-
$1,084 NZD
$611 USD
View
B+
Retailer 4
-
$1,207 NZD
£536 GBP
View
Most Expensive
B
NZ Jewellers
1940ab90-0c08-4d6c-8aa6-403f394bc31a · Nov 1
$2,853 NZD
$1,608 USD
View
4 more retailers have this diamond
Prices start from $875 NZDSave up to $1,978 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 Radiant
$875 NZD