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Oval|Lab Grown|IGI

1.54ct D SI1 Oval Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $421 NZD
$237 USD
As of November 1, 2026
Save $1,256 NZD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,677 NZD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.54ct lab-grown oval diamond

This 1.54ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by IGI. Listed at 7 retailers as of October 31, 2026, with prices from $421 to $1,677, a $1,256 spread on the same certified stone. NZ Jewellers lists it at $1,677. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.07 × 6.53 × 4.10 mm
L/W Ratio1.39
Top View
9.07 mm6.53 mm1.54 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.5%CrownGirdle: THN-STKPavilionCulet: NoneDepth 62.8%

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 1
Current: $1,677 NZD|Low: $405 NZD|High: $1,677 NZD|Avg: $719 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 20, 2026
Retailer 3$421 NZD
Retailer 2$488 NZD
Retailer 5$522 NZD
Retailer 4$584 NZD
NZ Jewellers$1,677 NZD

25 data points across 5 retailers

7 retailers$421 NZD to $1,677 NZD

Retailer 1
-
$405 NZD
$228 USD
Price last confirmed 28 days ago
B+
Retailer 2
-
$421 NZD
$237 USD
View
Retailer 3
-
$421 NZD
$237 USD
View
Price last confirmed 22 days ago
B+
Retailer 4
-
$488 NZD
$275 USD
View
Retailer 5
-
$584 NZD
£259 GBP
View
Price last confirmed 16 days ago
Retailer 6
-
$1,677 NZD
$945 USD
View
Price last confirmed 25 days ago
Most Expensive
C
NZ Jewellers
6c6fb7b9-3697-43dc-a14d-92bb04605b57 · Oct 31
$1,677 NZD
$945 USD
View
6 more retailers have this diamond
Prices start from $421 NZDSave up to $1,256 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 Oval
$421 NZD