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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 $312 SGD
$244 USD
As of October 29, 2026
Save $931 SGD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,243 SGD 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 $312 to $1,243, a $931 spread on the same certified stone. NZ Jewellers lists it at $1,243. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,243 SGD|Low: $211 SGD|High: $1,363 SGD|Avg: $618 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 6$211 SGD
Retailer 3$312 SGD
Retailer 2$362 SGD
Retailer 5$386 SGD
Retailer 4$432 SGD
NZ Jewellers$1,243 SGD
Retailer 7$1,363 SGD

24 data points across 7 retailers

7 retailers$312 SGD to $1,243 SGD

Retailer 1
-
$299 SGD
$234 USD
Price last confirmed 27 days ago
B+
Retailer 2
-
$312 SGD
$244 USD
View
Retailer 3
-
$312 SGD
$244 USD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$362 SGD
$283 USD
View
Retailer 5
-
$432 SGD
£266 GBP
View
Price last confirmed 14 days ago
Retailer 6
-
$1,243 SGD
$972 USD
View
Price last confirmed 24 days ago
Most Expensive
C
NZ Jewellers
edf60e19-3ddc-4532-971e-06d8223ee23c · Oct 31
$1,243 SGD
$972 USD
View
6 more retailers have this diamond
Prices start from $312 SGDSave up to $931 SGD

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
$312 SGD