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Oval|Lab Grown|GIA

1.57ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • GIA 1488286741

Certificate GIA 1488286741

Diamond specifications and retailer prices

From $536 NZD
$302 USD
As of October 29, 2026
Save $1,824 NZD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,360 NZD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

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 stated by the retailer rather than the lab and certified by GIA 1488286741. Listed at 5 retailers as of October 29, 2026, with prices from $536 to $2,360, a $1,824 spread on the same certified stone. NZ Jewellers lists it at $2,360. 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 (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1488286741
Dimensions9.30 × 6.56 × 4.15 mm
L/W Ratio1.42
Culet sizeNone
Key to symbols
Growth Remnant
Top View
9.30 mm6.56 mm1.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1488286741
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $2,360 NZD|Low: $406 NZD|High: $4,010 NZD|Avg: $1,525 NZD|+31.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5$536 NZD
Retailer 3$623 NZD
Retailer 2$665 NZD
Retailer 4$1,262 NZD
NZ Jewellers$2,360 NZD
Retailer 6$4,010 NZD

6 data points across 6 retailers

5 retailers$536 NZD to $2,360 NZD

A
Cheapest Retailer
-
$536 NZD
$302 USD
A
Retailer 2
-
$623 NZD
$351 USD
View
A
Retailer 3
-
$665 NZD
$375 USD
View
B+
Retailer 4
-
$1,262 NZD
$711 USD
View
Most Expensive
B
NZ Jewellers
183be7ed-f4f4-4135-a6f1-b5774f659b7e · Oct 31
$2,360 NZD
$1,330 USD
View
4 more retailers have this diamond
Prices start from $536 NZDSave up to $1,824 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
$536 NZD