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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1

Diamond specifications and retailer prices

From $7,044 AUD
As of November 5, 2026
Save $6,233 AUD (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,278 AUD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 17 retailers as of November 5, 2026, with prices from $7,044 to $13,278, a $6,233 spread on the same certified stone. NZ Jewellers lists it at $13,278. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.82 × 8.01 × 5.07 mm
L/W Ratio1.17
Top View
6.82 mm8.01 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA
Side View
Table 56.0%CrownGirdle: ThinPavilionCuletDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $13,278 AUD|Low: $7,044 AUD|High: $13,278 AUD|Avg: $8,150 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$7,044 AUD
Retailer 6$7,193 AUD
Retailer 8$7,193 AUD
Retailer 9$7,193 AUD
Retailer 4$7,372 AUD
Retailer 2$7,597 AUD
Retailer 5$7,917 AUD
Retailer 7$8,299 AUD
NZ Jewellers$13,278 AUD

39 data points across 9 retailers

17 retailers$7,044 AUD to $13,278 AUD

Retailer 1
-
$7,044 AUD
Price last confirmed 8 days ago
B
Retailer 2
-
$7,044 AUD
View
Retailer 3
-
$7,193 AUD
View
Price last confirmed 37 days ago
B
Retailer 4
-
$7,193 AUD
View
Retailer 5
-
$7,193 AUD
View
Price last confirmed 37 days ago
B
Retailer 6
-
$7,193 AUD
View
Retailer 7
-
$7,193 AUD
View
Price last confirmed 9 days ago
Retailer 8
-
$7,372 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$7,372 AUD
View
B
Retailer 10
-
$7,597 AUD
View
Retailer 11
-
$7,917 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$7,917 AUD
View
Retailer 13
-
$8,299 AUD
View
Price last confirmed 62 days ago
B
Retailer 14
-
$8,299 AUD
View
Retailer 15
-
$8,299 AUD
View
Price last confirmed 39 days ago
Retailer 16
-
$13,278 AUD
View
Price last confirmed 38 days ago
Most Expensive
C
NZ Jewellers
4ac71049-29d8-470d-b9d1-413b2e6939f0 · Nov 5
$13,278 AUD
$9,123 USD
View
16 more retailers have this diamond
Prices start from $7,044 AUDSave up to $6,233 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.

B
1.70ct Heart
$7,044 AUD