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1.57ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1568457611

Certificate GIA 1568457611

Diamond specifications and retailer prices

From $7,894 NZD
HK$34,700 HKD
As of November 1, 2026
Save $10,060 NZD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $17,954 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.57ct natural round diamond

This 1.57ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1568457611. Listed at 8 retailers as of October 30, 2026, with prices from $7,894 to $17,954, a $10,060 spread on the same certified stone. NZ Jewellers lists it at $17,954. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1568457611
Dimensions7.33 × 7.37 × 4.61 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.33 mm7.37 mm1.57 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568457611
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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 1
Current: $17,954 NZD|Low: $7,826 NZD|High: $18,118 NZD|Avg: $12,237 NZD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$7,894 NZD
Retailer 8$9,076 NZD
Retailer 2$10,735 NZD
Retailer 6$10,735 NZD
Retailer 4$11,522 NZD
Retailer 3$12,821 NZD
Retailer 5$15,816 NZD
NZ Jewellers$17,954 NZD

8 data points across 8 retailers

8 retailers$7,894 NZD to $17,954 NZD

A
Cheapest Retailer
-
$7,894 NZD
HK$34,700 HKD
B+
Retailer 2
-
$9,076 NZD
SGD 6,901 SGD
View
B
Retailer 3
-
$10,735 NZD
$6,040 USD
View
B+
Retailer 4
-
$10,735 NZD
$6,040 USD
View
B
Retailer 5
-
$11,522 NZD
€6,174 EUR
View
B
Retailer 6
-
$12,821 NZD
£5,680 GBP
View
B
Retailer 7
-
$15,816 NZD
£7,007 GBP
View
Most Expensive
B
NZ Jewellers
63324216-9f78-451b-b74d-cdd6b53aea90 · Oct 30
$17,954 NZD
$10,102 USD
View
7 more retailers have this diamond
Prices start from $7,894 NZDSave up to $10,060 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 Round
$7,894 NZD