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Oval|Lab Grown|IGI

1.57ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG839603313

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839603313

Diamond specifications and retailer prices

From $412 NZD
$232 USD
As of October 29, 2026
Save $1,718 NZD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,129 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.57ct lab-grown oval diamond

This 1.57ct 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 top-tier cut grade and certified by IGI LG839603313 or 839603313. Listed at 10 retailers as of October 29, 2026, with prices from $412 to $2,129, a $1,718 spread on the same certified stone. Brilliant Earth lists it at $2,129. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839603313
Dimensions9.68 × 6.64 × 4.04 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.68 mm6.64 mm1.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839603313
Side View
Table 58.0%Crown 31.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,129 NZD|Low: $396 NZD|High: $2,182 NZD|Avg: $1,223 NZD|-2.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$412 NZD
Retailer 9$477 NZD
Retailer 4$568 NZD
Retailer 7$862 NZD
Retailer 10$974 NZD
Retailer 6$1,629 NZD
Retailer 8$1,639 NZD
Retailer 3$1,650 NZD
Retailer 2$2,044 NZD
Brilliant Earth$2,129 NZD

17 data points across 10 retailers

10 retailers$412 NZD to $2,129 NZD

A
Cheapest Retailer
-
$412 NZD
$232 USD
A
Retailer 2
-
$477 NZD
$269 USD
View
A
Retailer 3
-
$568 NZD
HK$2,500 HKD
View
B+
Retailer 4
-
$862 NZD
$486 USD
View
B+
Retailer 5
-
$974 NZD
$549 USD
View
B
Retailer 6
-
$1,629 NZD
SGD 1,241 SGD
View
B
Retailer 7
-
$1,639 NZD
$924 USD
View
Retailer 8
-
$1,650 NZD
$930 USD
View
Price last confirmed 14 days ago
B
Retailer 9
-
$2,044 NZD
£907 GBP
View
Most Expensive
B
Brilliant Earth
21471937A · Oct 31
$2,129 NZD
$1,200 USD
View
9 more retailers have this diamond
Prices start from $412 NZDSave up to $1,718 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.

A
1.57ct Oval
$412 NZD