Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 3515598560

Certificate GIA 3515598560

Diamond specifications and retailer prices

From $7,850 AUD
$5,514 USD
As of October 30, 2026
Save $6,865 AUD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $16,616 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3515598560. Listed at 24 retailers as of October 29, 2026, with a 87% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3515598560
Dimensions7.69 × 7.65 × 4.72 mm
L/W Ratio1.01
Star length50%
Top View
7.69 mm7.65 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3515598560
Side View
Table 58.0%Crown 34°Girdle: ThickPavilion 41.4°Culet: NoneDepth 61.6%

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: Oct 30
Current: $10,857 AUD|Low: $7,615 AUD|High: $14,813 AUD|Avg: $9,951 AUD|+3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6$8,025 AUD
Retailer 7$8,308 AUD
Retailer 9$8,378 AUD
Retailer 2$8,867 AUD
Retailer 5$9,000 AUD
Retailer 3$9,464 AUD
Retailer 1$10,857 AUD
Retailer 8$10,950 AUD
Retailer 10$11,845 AUD
Retailer 4$14,715 AUD

36 data points across 10 retailers

24 retailers$7,850 AUD to $14,715 AUD

B+
Cheapest Retailer
-
$7,850 AUD
$5,514 USD
B+
Retailer 2
-
$8,025 AUD
$5,637 USD
View
B+
Retailer 3
-
$8,308 AUD
$5,836 USD
View
Final sale: no returns
B+
Retailer 4
-
$8,867 AUD
$6,229 USD
View
Retailer 5
-
$9,000 AUD
$6,322 USD
View
Price last confirmed 42 days ago
B+
Retailer 6
-
$9,000 AUD
$6,322 USD
View
Retailer 7
-
$9,000 AUD
$6,322 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$9,000 AUD
$6,322 USD
View
Price last confirmed 23 days ago
Retailer 9
-
$9,000 AUD
$6,322 USD
View
Price last confirmed 31 days ago
Retailer 10
-
$9,000 AUD
$6,322 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$9,464 AUD
£5,235 GBP
View
B
Retailer 12
-
$9,624 AUD
$6,760 USD
View
B
Retailer 13
-
$9,624 AUD
$6,760 USD
View
B
Retailer 14
-
$9,951 AUD
$6,990 USD
View
Retailer 15
-
$10,385 AUD
$7,295 USD
View
Price last confirmed 22 days ago
Retailer 16
-
$10,385 AUD
$7,295 USD
View
Price last confirmed 39 days ago
Retailer 17
-
$10,385 AUD
$7,295 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$10,385 AUD
$7,295 USD
View
B
Retailer 19
-
$10,857 AUD
€7,263 EUR
View
Retailer 20
-
$10,950 AUD
$7,692 USD
View
Price last confirmed 16 days ago
B
Retailer 21
-
$14,715 AUD
£8,139 GBP
View
Retailer 22
-
$16,616 AUD
$11,672 USD
View
Price last confirmed 41 days ago
Retailer 23
-
$16,616 AUD
$11,672 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
b4ae3efc-6d45-444a-9a24-6e8e8b9a0d18 · Oct 20
$16,616 AUD
$11,672 USD
View
Price last confirmed 10 days ago
23 more retailers have this diamond
Prices start from $7,850 AUDSave up to $6,865 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 Round
$7,850 AUD