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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1555112868

Certificate GIA 1555112868

Diamond specifications and retailer prices

From $7,162 AUD
As of November 6, 2026
Save $5,130 AUD (42%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,978 AUD at NZ Jewellers · As of September 30, 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 1555112868. Listed at 13 retailers as of November 6, 2026, with a 72% 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555112868
Dimensions8.30 × 6.99 × 5.09 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Natural
Top View
8.30 mm6.99 mm1.70 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555112868
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,240 AUD|Low: $6,565 AUD|High: $12,508 AUD|Avg: $8,681 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$7,162 AUD
Retailer 6$7,408 AUD
Retailer 3$7,497 AUD
Retailer 8$7,821 AUD
Retailer 1$8,240 AUD
Retailer 4$8,729 AUD
Retailer 5$9,467 AUD
Retailer 2$12,292 AUD

46 data points across 8 retailers

13 retailers$7,162 AUD to $12,292 AUD

B+
Cheapest Retailer
-
$7,162 AUD
Final sale: no returns
B+
Retailer 2
-
$7,408 AUD
View
B+
Retailer 3
-
$7,497 AUD
View
Retailer 4
-
$7,760 AUD
View
Price last confirmed 30 days ago
Retailer 5
-
$7,760 AUD
View
Price last confirmed 30 days ago
Retailer 6
-
$7,760 AUD
View
Price last confirmed 37 days ago
Retailer 7
-
$7,821 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$8,240 AUD
View
B
Retailer 9
-
$8,729 AUD
View
Retailer 10
-
$8,954 AUD
View
Price last confirmed 39 days ago
B
Retailer 11
-
$9,467 AUD
View
B
Retailer 12
-
$12,292 AUD
View
Most Expensive
NZ Jewellers
0e69b47c-47ab-4532-8b09-b66fb4f696aa · Sep 30
$12,978 AUD
$8,917 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $7,162 AUDSave up to $5,130 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
$7,162 AUD