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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 $3,201 USD
As of November 1, 2026
Save $3,331 USD (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,532 USD 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 $3,201 to $6,532, a $3,331 spread on the same certified stone. NZ Jewellers lists it at $6,532. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,532 USD|Low: $3,201 USD|High: $6,532 USD|Avg: $4,347 USD
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$3,201 USD
Retailer 6$3,329 USD
Retailer 13$3,356 USD
Retailer 9$3,749 USD
Retailer 10$3,749 USD
Retailer 8$3,894 USD
Retailer 3$3,895 USD
Retailer 2$3,918 USD
Retailer 4$4,042 USD
Retailer 11$4,326 USD
Retailer 14$4,461 USD
Retailer 5$6,057 USD
Retailer 7$6,269 USD
NZ Jewellers$6,532 USD

39 data points across 14 retailers

10 retailers$3,201 USD to $6,532 USD

A
Cheapest Retailer
-
$3,201 USD
A
Retailer 2
-
$3,329 USD
View
Retailer 3
-
$3,749 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$3,749 USD
View
B+
Retailer 5
-
$3,894 USD
View
B+
Retailer 6
-
$3,895 USD
View
B+
Retailer 7
-
$3,918 USD
View
B+
Retailer 8
-
$4,326 USD
View
B
Retailer 9
-
$6,269 USD
View
Most Expensive
B
NZ Jewellers
8fcb2d63-570f-4727-856d-5667d7af08bb · Nov 3
$6,532 USD
View
9 more retailers have this diamond
Prices start from $3,201 USDSave up to $3,331 USD

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
$3,201 USD