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Heart|Natural|GIA

1.71ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 2546649146

Certificate GIA 2546649146

Diamond specifications and retailer prices

From $4,154 AUD
As of November 6, 2026
Save $5,021 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,558 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.71ct natural heart diamond

This 1.71ct 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 2546649146. Listed at 13 retailers as of November 1, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.71
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 2546649146
Dimensions7.44 × 8.47 × 4.62 mm
L/W Ratio1.14
Top View
7.44 mm8.47 mm1.71 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2546649146
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 54.6%

Caratlytics Score

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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 6
Current: $9,558 AUD|Low: $4,154 AUD|High: $9,558 AUD|Avg: $6,122 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$4,154 AUD
Retailer 2$4,382 AUD
Retailer 4$5,238 AUD
Retailer 3$5,433 AUD
Retailer 9$5,487 AUD
Retailer 10$5,487 AUD
Retailer 5$5,643 AUD
Retailer 8$6,330 AUD
Retailer 7$9,175 AUD
NZ Jewellers$9,558 AUD

30 data points across 10 retailers

13 retailers$4,154 AUD to $9,175 AUD

A
Cheapest Retailer
-
$4,154 AUD
A
Retailer 2
-
$4,382 AUD
View
B+
Retailer 3
-
$5,120 AUD
View
B+
Retailer 4
-
$5,238 AUD
View
B+
Retailer 5
-
$5,427 AUD
View
B+
Retailer 6
-
$5,433 AUD
View
Retailer 7
-
$5,487 AUD
View
Price last confirmed 21 days ago
Retailer 8
-
$5,487 AUD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$5,643 AUD
View
Retailer 10
-
$5,698 AUD
View
Price last confirmed 21 days ago
Retailer 11
-
$6,330 AUD
View
Price last confirmed 18 days ago
B
Retailer 12
-
$9,175 AUD
View
Most Expensive
NZ Jewellers
cdb23090-4389-44ac-abe7-51aca431cef0 · Oct 18
$9,558 AUD
$6,567 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from $4,154 AUDSave up to $5,021 AUD

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
1.71ct Heart
$4,154 AUD