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Heart|Natural|GIA

1.70ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 6532840120

Certificate GIA 6532840120

Diamond specifications and retailer prices

From $3,874 AUD
As of November 6, 2026
Save $4,526 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,925 AUD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct 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 6532840120. Listed at 14 retailers as of November 4, 2026, with a 117% 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

1.70
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6532840120
Dimensions7.69 × 8.35 × 4.81 mm
L/W Ratio1.09
Top View
7.69 mm8.35 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6532840120
Side View
Table 64.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 57.7%

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 6
Current: $8,925 AUD|Low: $3,874 AUD|High: $8,925 AUD|Avg: $5,845 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 8$3,874 AUD
Retailer 2$4,100 AUD
Retailer 3$5,018 AUD
Retailer 10$5,123 AUD
Retailer 6$5,212 AUD
Retailer 5$5,392 AUD
Retailer 4$5,862 AUD
Retailer 9$5,910 AUD
Retailer 7$8,401 AUD
NZ Jewellers$8,925 AUD

27 data points across 10 retailers

14 retailers$3,874 AUD to $8,401 AUD

A
Cheapest Retailer
-
$3,874 AUD
A
Retailer 2
-
$4,100 AUD
View
B+
Retailer 3
-
$4,822 AUD
View
A
Retailer 4
-
$5,018 AUD
View
B+
Retailer 5
-
$5,087 AUD
View
Retailer 6
-
$5,123 AUD
View
Price last confirmed 19 days ago
Retailer 7
-
$5,123 AUD
View
Price last confirmed 21 days ago
A
Retailer 8
-
$5,212 AUD
View
Retailer 9
-
$5,319 AUD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$5,392 AUD
View
B+
Retailer 11
-
$5,862 AUD
View
Retailer 12
-
$5,910 AUD
View
Price last confirmed 18 days ago
B
Retailer 13
-
$8,401 AUD
View
Most Expensive
NZ Jewellers
b07d9086-d00e-4168-8f64-bdfa64b28c04 · Oct 18
$8,925 AUD
$6,132 USD
View
Price last confirmed 19 days ago
13 more retailers have this diamond
Prices start from $3,874 AUDSave up to $4,526 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
1.70ct Heart
$3,874 AUD