Round|Natural|GIA

1.70ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2517960321

Certificate GIA 2517960321

Diamond specifications and retailer prices

From $5,286 USD
As of October 30, 2026
Save $6,226 USD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,512 USD 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2517960321. Listed at 19 retailers as of October 30, 2026, with prices from $5,286 to $11,512, a $6,226 spread on the same certified stone. NZ Jewellers lists it at $11,512. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2517960321
Dimensions7.58 × 7.53 × 4.74 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.58 mm7.53 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2517960321
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

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: $7,081 USD|Low: $4,990 USD|High: $10,263 USD|Avg: $7,123 USD|+2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$5,439 USD
Retailer 6$5,755 USD
Retailer 8$6,236 USD
Retailer 3$6,558 USD
Retailer 7$6,750 USD
Retailer 1$7,081 USD
Retailer 4$8,457 USD
Retailer 2$10,141 USD

44 data points across 8 retailers

19 retailers$5,286 USD to $11,512 USD

B+
Cheapest Retailer
-
$5,286 USD
B+
Retailer 2
-
$5,439 USD
View
B+
Retailer 3
-
$5,653 USD
A$8,696 AUD
View
B
Retailer 4
-
$5,755 USD
View
Final sale: no returns
B+
Retailer 5
-
$5,805 USD
View
B+
Retailer 6
-
$6,236 USD
View
B+
Retailer 7
-
$6,236 USD
View
B+
Retailer 8
-
$6,236 USD
View
B+
Retailer 9
-
$6,558 USD
£5,163 GBP
View
Retailer 10
-
$6,750 USD
A$10,385 AUD
View
Price last confirmed 28 days ago
B
Retailer 11
-
$6,827 USD
View
B
Retailer 12
-
$6,830 USD
View
B
Retailer 13
-
$6,830 USD
View
B
Retailer 14
-
$7,050 USD
View
B
Retailer 15
-
$7,081 USD
€6,744 EUR
View
B
Retailer 16
-
$7,195 USD
View
B
Retailer 17
-
$8,457 USD
ZAR 136,625 ZAR
View
B
Retailer 18
-
$10,141 USD
£7,985 GBP
View
Most Expensive
B
NZ Jewellers
c2d63e4c-e352-4a00-a185-0b26b6856e65 · Oct 30
$11,512 USD
View
18 more retailers have this diamond
Prices start from $5,286 USDSave up to $6,226 USD

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
$5,286 USD