Oval|Lab Grown|IGI

1.59ct D SI1 Oval Lab Grown Diamond

GD • D/SI1

Diamond specifications and retailer prices

From $244 USD
As of October 29, 2026
Save $728 USD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $972 USD at NZ Jewellers · As of October 28, 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 28, 2026, with prices from $244 to $972, a $728 spread on the same certified stone. NZ Jewellers lists it at $972. 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
Color
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

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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: $972 USD|Low: $165 USD|High: $1,066 USD|Avg: $483 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 20, 2026
Retailer 6$165 USD
Retailer 3$244 USD
Retailer 2$283 USD
Retailer 5$302 USD
Retailer 4$338 USD
NZ Jewellers$972 USD
Retailer 7$1,066 USD

24 data points across 7 retailers

7 retailers$244 USD to $972 USD

Retailer 1
-
$234 USD
Price last confirmed 26 days ago
B+
Retailer 2
-
$244 USD
View
Retailer 3
-
$244 USD
View
Price last confirmed 20 days ago
B+
Retailer 4
-
$283 USD
View
Retailer 5
-
$338 USD
£266 GBP
View
Price last confirmed 13 days ago
Retailer 6
-
$972 USD
View
Price last confirmed 23 days ago
Most Expensive
C
NZ Jewellers
edf60e19-3ddc-4532-971e-06d8223ee23c · Oct 28
$972 USD
View
6 more retailers have this diamond
Prices start from $244 USDSave up to $728 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+
1.59ct Oval
$244 USD