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Cushion|Natural|GIA

1.57ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1558083901

Certificate GIA 1558083901

Diamond specifications and retailer prices

From $4,932 NZD
$2,775 USD
As of November 2, 2026
Save $1,413 NZD (22%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,345 NZD at Jared · As of November 2, 2026
View at Jared

About this 1.57ct natural cushion diamond

This 1.57ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558083901. Listed at 7 retailers as of November 2, 2026, with prices from $4,932 to $6,345, a $1,413 spread on the same certified stone. Jared lists it at $6,345. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558083901
Dimensions6.54 × 6.40 × 4.35 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.54 mm6.40 mm1.57 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558083901
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.0%

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: Nov 2
Current: $6,345 NZD|Low: $4,424 NZD|High: $6,896 NZD|Avg: $5,837 NZD|-8.0%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$4,459 NZD
Retailer 6$4,932 NZD
Retailer 4$5,344 NZD
Retailer 2$5,769 NZD
Retailer 3$6,132 NZD
Retailer 7$6,132 NZD
Retailer 5$6,301 NZD
Jared$6,345 NZD
Retailer 9$6,361 NZD

40 data points across 9 retailers

7 retailers$4,932 NZD to $6,345 NZD

A
Cheapest Retailer
-
$4,932 NZD
$2,775 USD
Final sale: no returns
A
Retailer 2
-
$5,344 NZD
$3,007 USD
View
A
Retailer 3
-
$5,769 NZD
£2,556 GBP
View
A
Retailer 4
-
$6,132 NZD
$3,450 USD
View
A
Retailer 5
-
$6,132 NZD
$3,450 USD
View
A
Retailer 6
-
$6,301 NZD
SGD 4,791 SGD
View
Most Expensive
A
Jared
159877868 · Nov 2
$6,345 NZD
$3,570 USD
View
6 more retailers have this diamond
Prices start from $4,932 NZDSave up to $1,413 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 Cushion
$4,932 NZD