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1.70ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2454934135

Certificate GIA 2454934135

Diamond specifications and retailer prices

From $10,735 NZD
$6,050 USD
As of October 30, 2026
Save $13,401 NZD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $24,136 NZD at NZ Jewellers · As of October 30, 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 2454934135. Listed at 20 retailers as of October 30, 2026, with prices from $10,735 to $24,136, a $13,401 spread on the same certified stone. NZ Jewellers lists it at $24,136. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2454934135
Dimensions7.62 × 7.58 × 4.79 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.62 mm7.58 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2454934135
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.1%

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: $24,136 NZD|Low: $10,057 NZD|High: $24,136 NZD|Avg: $14,271 NZD
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
Retailer 15
October 31, 2026
Retailer 13$10,735 NZD
Retailer 10$10,850 NZD
Retailer 14$11,999 NZD
Retailer 3$12,069 NZD
Retailer 11$12,069 NZD
Retailer 7$12,168 NZD
Retailer 5$13,073 NZD
Retailer 12$13,275 NZD
Retailer 2$13,522 NZD
Retailer 15$13,808 NZD
Retailer 8$14,932 NZD
Retailer 4$15,085 NZD
Retailer 6$15,896 NZD
Retailer 9$20,219 NZD
NZ Jewellers$24,136 NZD

40 data points across 15 retailers

20 retailers$10,735 NZD to $24,136 NZD

B
Cheapest Retailer
-
$10,735 NZD
$6,050 USD
B
Retailer 2
-
$10,850 NZD
$6,115 USD
View
B
Retailer 3
-
$10,900 NZD
$6,143 USD
View
B+
Retailer 4
-
$11,222 NZD
A$9,730 AUD
View
B+
Retailer 5
-
$11,403 NZD
$6,427 USD
View
B
Retailer 6
-
$11,999 NZD
CA$9,393 CAD
View
B
Retailer 7
-
$12,069 NZD
$6,802 USD
View
B
Retailer 8
-
$12,069 NZD
$6,802 USD
View
Final sale: no returns
B
Retailer 9
-
$13,073 NZD
$7,368 USD
View
B
Retailer 10
-
$13,275 NZD
$7,482 USD
View
B
Retailer 11
-
$13,522 NZD
£6,001 GBP
View
B
Retailer 12
-
$13,808 NZD
$7,782 USD
View
B
Retailer 13
-
$14,443 NZD
$8,140 USD
View
B
Retailer 14
-
$14,443 NZD
$8,140 USD
View
B
Retailer 15
-
$14,922 NZD
$8,410 USD
View
B
Retailer 16
-
$14,932 NZD
€8,015 EUR
View
B
Retailer 17
-
$15,085 NZD
$8,502 USD
View
Retailer 18
-
$15,896 NZD
$8,959 USD
View
Price last confirmed 8 days ago
B
Retailer 19
-
$20,219 NZD
£8,973 GBP
View
Most Expensive
B
NZ Jewellers
1772f783-3abb-4080-beaa-237e39d46ab9 · Oct 30
$24,136 NZD
$13,603 USD
View
19 more retailers have this diamond
Prices start from $10,735 NZDSave up to $13,401 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
$10,735 NZD