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Cushion|Natural|GIA

1.70ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 1558587225

Certificate GIA 1558587225

Diamond specifications and retailer prices

From $5,479 AUD
HK$30,000 HKD
As of November 1, 2026
Save $6,173 AUD (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,652 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.7ct natural cushion diamond

This 1.7ct natural cushion 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 stated by the retailer rather than the lab and certified by GIA 1558587225. Listed at 14 retailers as of November 1, 2026, with prices from $5,479 to $11,652, a $6,173 spread on the same certified stone. MOH London lists it at $11,652. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558587225
Dimensions8.04 × 6.04 × 4.17 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Twinning Wisp, Crystal, Feather, Indented Natural, Needle
Top View
8.04 mm6.04 mm1.70 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558587225
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $11,652 AUD|Low: $5,443 AUD|High: $12,488 AUD|Avg: $7,614 AUD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$5,479 AUD
Retailer 2$5,836 AUD
Retailer 10$6,752 AUD
Retailer 3$6,830 AUD
Retailer 12$6,974 AUD
Retailer 5$7,233 AUD
Retailer 7$7,303 AUD
Retailer 9$7,533 AUD
Retailer 11$7,715 AUD
Retailer 4$7,747 AUD
Retailer 6$8,278 AUD
MOH London$11,652 AUD

25 data points across 12 retailers

14 retailers$5,479 AUD to $11,652 AUD

A
Cheapest Retailer
-
$5,479 AUD
HK$30,000 HKD
B+
Retailer 2
-
$5,836 AUD
₹389,501 INR
View
B+
Retailer 3
-
$6,752 AUD
$4,732 USD
View
Final sale: no returns
B+
Retailer 4
-
$6,830 AUD
SGD 6,468 SGD
View
B+
Retailer 5
-
$6,974 AUD
SGD 6,605 SGD
View
B
Retailer 6
-
$7,100 AUD
$4,976 USD
View
B+
Retailer 7
-
$7,233 AUD
£3,991 GBP
View
B
Retailer 8
-
$7,303 AUD
£4,030 GBP
View
B
Retailer 9
-
$7,529 AUD
View
B
Retailer 10
-
$7,533 AUD
$5,279 USD
View
B+
Retailer 11
-
$7,715 AUD
$5,407 USD
View
Retailer 12
-
$7,747 AUD
$5,429 USD
View
Price last confirmed 17 days ago
B
Retailer 13
-
$8,278 AUD
€5,525 EUR
View
Most Expensive
B
MOH London
1CE160ECC · Nov 2
$11,652 AUD
£6,430 GBP
View
13 more retailers have this diamond
Prices start from $5,479 AUDSave up to $6,173 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.

A
1.70ct Cushion
$5,479 AUD