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Round|Natural|GIA

1.70ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2486987805

Certificate GIA 2486987805

Diamond specifications and retailer prices

From $6,760 AUD
HK$37,100 HKD
As of October 30, 2026
Save $8,607 AUD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,368 AUD 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 2486987805. Listed at 15 retailers as of October 30, 2026, with prices from $6,760 to $15,368, a $8,607 spread on the same certified stone. NZ Jewellers lists it at $15,368. 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 angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2486987805
Dimensions7.64 × 7.60 × 4.79 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
7.64 mm7.60 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2486987805
Side View
Table 56.0%Crown 34°GirdlePavilion 41.6°Culet: NoneDepth 62.8%

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: $15,368 AUD|Low: $6,760 AUD|High: $15,368 AUD|Avg: $9,659 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
Retailer 15
October 31, 2026
Retailer 5$6,760 AUD
Retailer 7$7,470 AUD
Retailer 4$8,013 AUD
Retailer 15$8,480 AUD
Retailer 2$8,755 AUD
Retailer 6$9,125 AUD
Retailer 11$9,188 AUD
Retailer 12$9,188 AUD
Retailer 13$9,188 AUD
Retailer 3$9,414 AUD
Retailer 8$10,042 AUD
Retailer 14$10,602 AUD
Retailer 9$11,925 AUD
Retailer 10$13,609 AUD
NZ Jewellers$15,368 AUD

30 data points across 15 retailers

15 retailers$6,760 AUD to $15,368 AUD

B+
Cheapest Retailer
-
$6,760 AUD
HK$37,100 HKD
Retailer 2
-
$7,781 AUD
SGD 7,386 SGD
View
Price last confirmed 17 days ago
B
Retailer 3
-
$8,013 AUD
$5,629 USD
View
B
Retailer 4
-
$8,480 AUD
$5,957 USD
View
Final sale: no returns
B
Retailer 5
-
$8,755 AUD
£4,842 GBP
View
B
Retailer 6
-
$9,125 AUD
$6,410 USD
View
B
Retailer 7
-
$9,188 AUD
$6,454 USD
View
B
Retailer 8
-
$9,188 AUD
$6,454 USD
View
B
Retailer 9
-
$9,188 AUD
$6,454 USD
View
B
Retailer 10
-
$9,414 AUD
$6,612 USD
View
B
Retailer 11
-
$10,042 AUD
€6,718 EUR
View
B
Retailer 12
-
$10,602 AUD
$7,447 USD
View
B
Retailer 13
-
$11,925 AUD
£6,596 GBP
View
B
Retailer 14
-
$13,609 AUD
£7,527 GBP
View
Most Expensive
B
NZ Jewellers
f6369b8a-33a9-40e1-bee2-eecd729aa35f · Oct 30
$15,368 AUD
$10,795 USD
View
14 more retailers have this diamond
Prices start from $6,760 AUDSave up to $8,607 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
$6,760 AUD