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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

GD • J/SI2 • GIA 6281730589

Certificate GIA 6281730589

Diamond specifications and retailer prices

From $3,700 AUD
As of November 6, 2026
Save $3,539 AUD (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,238 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6281730589. Listed at 6 retailers as of November 2, 2026, with prices from $3,700 to $7,238, a $3,539 spread on the same certified stone. MOH London lists it at $7,238. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6281730589
Dimensions6.00 × 5.34 × 3.65 mm
L/W Ratio1.12
Cert comments
CANADIAN DIAMOND
Top View
6.00 mm5.34 mm1.00 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6281730589
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,238 AUD|Low: $3,611 AUD|High: $7,325 AUD|Avg: $4,530 AUD|+1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$3,700 AUD
Retailer 7$3,756 AUD
Retailer 4$3,791 AUD
Retailer 5$3,802 AUD
Retailer 3$4,130 AUD
Retailer 8$4,797 AUD
Retailer 2$4,807 AUD
MOH London$7,238 AUD

26 data points across 8 retailers

6 retailers$3,700 AUD to $7,238 AUD

B
Cheapest Retailer
-
$3,700 AUD
Retailer 2
-
$3,791 AUD
View
Price last confirmed 10 days ago
B
Retailer 3
-
$3,802 AUD
View
Retailer 4
-
$4,130 AUD
View
Price last confirmed 9 days ago
C
Retailer 5
-
$4,807 AUD
View
Most Expensive
C
MOH London
49330C978 · Nov 2
$7,238 AUD
£3,916 GBP
View
5 more retailers have this diamond
Prices start from $3,700 AUDSave up to $3,539 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
1.00ct Cushion
$3,700 AUD