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Heart|Natural|GIA

1.57ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 6501528525

Certificate GIA 6501528525

Diamond specifications and retailer prices

From $5,774 NZD
As of November 1, 2026
Save $6,009 NZD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,783 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6501528525. Listed at 10 retailers as of November 1, 2026, with prices from $5,774 to $11,783, a $6,009 spread on the same certified stone. NZ Jewellers lists it at $11,783. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6501528525
Dimensions6.75 × 8.42 × 4.80 mm
L/W Ratio1.25
Top View
6.75 mm8.42 mm1.57 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501528525
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.0%

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 1
Current: $11,783 NZD|Low: $5,774 NZD|High: $11,783 NZD|Avg: $7,842 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 12$5,774 NZD
Retailer 6$6,005 NZD
Retailer 13$6,054 NZD
Retailer 9$6,763 NZD
Retailer 10$6,763 NZD
Retailer 8$7,024 NZD
Retailer 3$7,026 NZD
Retailer 2$7,068 NZD
Retailer 4$7,291 NZD
Retailer 11$7,804 NZD
Retailer 14$8,047 NZD
Retailer 5$10,926 NZD
Retailer 7$11,309 NZD
NZ Jewellers$11,783 NZD

39 data points across 14 retailers

10 retailers$5,774 NZD to $11,783 NZD

A
Cheapest Retailer
-
$5,774 NZD
A
Retailer 2
-
$6,005 NZD
View
Retailer 3
-
$6,763 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$6,763 NZD
View
B+
Retailer 5
-
$7,024 NZD
View
B+
Retailer 6
-
$7,026 NZD
View
B+
Retailer 7
-
$7,068 NZD
View
B+
Retailer 8
-
$7,804 NZD
View
B
Retailer 9
-
$11,309 NZD
View
Most Expensive
B
NZ Jewellers
8fcb2d63-570f-4727-856d-5667d7af08bb · Nov 3
$11,783 NZD
$6,532 USD
View
9 more retailers have this diamond
Prices start from $5,774 NZDSave up to $6,009 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 Heart
$5,774 NZD