Oval|Lab Grown|IGI

1.54ct D SI1 Oval Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $237 USD
As of October 29, 2026
Save $708 USD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $945 USD at NZ Jewellers · As of October 28, 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 28, 2026, with prices from $237 to $945, a $708 spread on the same certified stone. NZ Jewellers lists it at $945. 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
Color
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
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Price History

Last verified: Oct 29
Current: $945 USD|Low: $228 USD|High: $945 USD|Avg: $405 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 20, 2026
Retailer 3$237 USD
Retailer 2$275 USD
Retailer 5$294 USD
Retailer 4$329 USD
NZ Jewellers$945 USD

25 data points across 5 retailers

7 retailers$237 USD to $945 USD

Retailer 1
-
$228 USD
Price last confirmed 26 days ago
B+
Retailer 2
-
$237 USD
View
Retailer 3
-
$237 USD
View
Price last confirmed 19 days ago
B+
Retailer 4
-
$275 USD
View
Retailer 5
-
$329 USD
£259 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
$945 USD
View
Price last confirmed 23 days ago
Most Expensive
C
NZ Jewellers
6c6fb7b9-3697-43dc-a14d-92bb04605b57 · Oct 28
$945 USD
View
6 more retailers have this diamond
Prices start from $237 USDSave up to $708 USD

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
$237 USD