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Oval|Lab Grown|IGI

1.59ct D SI1 Oval Lab Grown Diamond

GD • D/SI1

Diamond specifications and retailer prices

From $347 AUD
$244 USD
As of October 29, 2026
Save $1,036 AUD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,384 AUD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.59ct lab-grown oval diamond

This 1.59ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI. Listed at 7 retailers as of October 29, 2026, with prices from $347 to $1,384, a $1,036 spread on the same certified stone. NZ Jewellers lists it at $1,384. 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

1.59
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.22 × 6.60 × 4.14 mm
L/W Ratio1.40
Top View
9.22 mm6.60 mm1.59 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

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: Oct 29
Current: $1,384 AUD|Low: $235 AUD|High: $1,518 AUD|Avg: $688 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 6$235 AUD
Retailer 3$347 AUD
Retailer 2$403 AUD
Retailer 5$430 AUD
Retailer 4$482 AUD
NZ Jewellers$1,384 AUD
Retailer 7$1,518 AUD

24 data points across 7 retailers

7 retailers$347 AUD to $1,384 AUD

Retailer 1
-
$333 AUD
$234 USD
Price last confirmed 27 days ago
B+
Retailer 2
-
$347 AUD
$244 USD
View
Retailer 3
-
$347 AUD
$244 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$403 AUD
$283 USD
View
Retailer 5
-
$482 AUD
£266 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
$1,384 AUD
$972 USD
View
Price last confirmed 24 days ago
Most Expensive
C
NZ Jewellers
edf60e19-3ddc-4532-971e-06d8223ee23c · Oct 31
$1,384 AUD
$972 USD
View
6 more retailers have this diamond
Prices start from $347 AUDSave up to $1,036 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.

B+
1.59ct Oval
$347 AUD