Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 3515598560

Certificate GIA 3515598560

Diamond specifications and retailer prices

From $9,783 NZD
$5,514 USD
As of October 30, 2026
Save $8,557 NZD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $20,710 NZD 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: $11,796 NZD|Low: $9,491 NZD|High: $18,462 NZD|Avg: $12,424 NZD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$10,002 NZD
Retailer 7$10,355 NZD
Retailer 9$10,442 NZD
Retailer 2$11,052 NZD
Retailer 5$11,217 NZD
Retailer 1$11,796 NZD
Retailer 3$13,531 NZD
Retailer 8$13,648 NZD
Retailer 10$14,762 NZD
Retailer 4$18,340 NZD

36 data points across 10 retailers

24 retailers$9,783 NZD to $18,340 NZD

B+
Cheapest Retailer
-
$9,783 NZD
$5,514 USD
B+
Retailer 2
-
$10,002 NZD
$5,637 USD
View
B+
Retailer 3
-
$10,355 NZD
$5,836 USD
View
Final sale: no returns
B+
Retailer 4
-
$11,052 NZD
$6,229 USD
View
Retailer 5
-
$11,217 NZD
$6,322 USD
View
Price last confirmed 43 days ago
B+
Retailer 6
-
$11,217 NZD
$6,322 USD
View
Retailer 7
-
$11,217 NZD
$6,322 USD
View
Price last confirmed 16 days ago
Retailer 8
-
$11,217 NZD
$6,322 USD
View
Price last confirmed 24 days ago
Retailer 9
-
$11,217 NZD
$6,322 USD
View
Price last confirmed 32 days ago
Retailer 10
-
$11,217 NZD
$6,322 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
$11,796 NZD
£5,235 GBP
View
B
Retailer 12
-
$11,994 NZD
$6,760 USD
View
B
Retailer 13
-
$11,994 NZD
$6,760 USD
View
B
Retailer 14
-
$12,402 NZD
$6,990 USD
View
Retailer 15
-
$12,944 NZD
$7,295 USD
View
Price last confirmed 22 days ago
Retailer 16
-
$12,944 NZD
$7,295 USD
View
Price last confirmed 40 days ago
Retailer 17
-
$12,944 NZD
$7,295 USD
View
Price last confirmed 11 days ago
B
Retailer 18
-
$12,944 NZD
$7,295 USD
View
B
Retailer 19
-
$13,531 NZD
€7,263 EUR
View
Retailer 20
-
$13,648 NZD
$7,692 USD
View
Price last confirmed 17 days ago
B
Retailer 21
-
$18,340 NZD
£8,139 GBP
View
Retailer 22
-
$20,710 NZD
$11,672 USD
View
Price last confirmed 42 days ago
Retailer 23
-
$20,710 NZD
$11,672 USD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
b4ae3efc-6d45-444a-9a24-6e8e8b9a0d18 · Oct 20
$20,710 NZD
$11,672 USD
View
Price last confirmed 11 days ago
23 more retailers have this diamond
Prices start from $9,783 NZDSave up to $8,557 NZD

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
$9,783 NZD