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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1529474214

Certificate GIA 1529474214

Diamond specifications and retailer prices

From $7,629 AUD
As of November 4, 2026
Save $5,581 AUD (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,079 AUD at NZ Jewellers · As of October 6, 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 1529474214. Listed at 16 retailers as of November 4, 2026, with a 73% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle41.28°
OriginNatural
Grading LabGIA
CertificateGIA 1529474214
Dimensions6.96 × 8.05 × 4.93 mm
L/W Ratio1.16
Culet sizePointed
Key to symbols
Twinning Wisp
Top View
6.96 mm8.05 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529474214
Side View
Table 59.0%Crown 39.1°Girdle: VTK-VTKPavilion 41.28°Culet: NoneDepth 61.2%

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 4
Current: $15,079 AUD|Low: $7,628 AUD|High: $15,079 AUD|Avg: $9,669 AUD
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 7, 2026
Retailer 5$7,629 AUD
Retailer 4$7,864 AUD
Retailer 11$8,322 AUD
Retailer 13$8,390 AUD
Retailer 8$8,587 AUD
Retailer 9$8,628 AUD
Retailer 14$9,016 AUD
Retailer 12$9,239 AUD
Retailer 6$9,316 AUD
Retailer 2$9,571 AUD
Retailer 3$10,403 AUD
Retailer 10$11,000 AUD
Retailer 7$13,211 AUD
NZ Jewellers$15,079 AUD

38 data points across 14 retailers

16 retailers$7,629 AUD to $13,211 AUD

B+
Cheapest Retailer
-
$7,629 AUD
B
Retailer 2
-
$7,864 AUD
View
B+
Retailer 3
-
$8,322 AUD
View
Final sale: no returns
B+
Retailer 4
-
$8,390 AUD
View
B+
Retailer 5
-
$8,587 AUD
View
B+
Retailer 6
-
$8,628 AUD
View
Retailer 7
-
$9,016 AUD
View
Price last confirmed 30 days ago
Retailer 8
-
$9,016 AUD
View
Price last confirmed 31 days ago
B
Retailer 9
-
$9,239 AUD
View
Retailer 10
-
$9,316 AUD
View
Price last confirmed 34 days ago
Retailer 11
-
$9,374 AUD
View
Price last confirmed 37 days ago
B
Retailer 12
-
$9,571 AUD
View
Retailer 13
-
$10,403 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$11,000 AUD
View
B
Retailer 15
-
$13,211 AUD
View
Most Expensive
NZ Jewellers
49f3b747-36dc-4e22-8659-c3a39488ed05 · Oct 6
$15,079 AUD
$10,361 USD
View
Price last confirmed 31 days ago
15 more retailers have this diamond
Prices start from $7,629 AUDSave up to $5,581 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
$7,629 AUD