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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 7558661636

Certificate GIA 7558661636

Diamond specifications and retailer prices

From $1,304 AUD
As of November 6, 2026
Save $1,919 AUD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,224 AUD at MOH London · As of November 4, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558661636. Listed at 14 retailers as of November 4, 2026, with prices from $1,304 to $3,224, a $1,919 spread on the same certified stone. MOH London lists it at $3,224. 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558661636
Dimensions5.61 × 5.29 × 3.91 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Pinpoint
Top View
5.61 mm5.29 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558661636
Side View
Table 63.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.9%

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 6
Current: $3,224 AUD|Low: $1,313 AUD|High: $3,262 AUD|Avg: $2,051 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$1,313 AUD
Retailer 11$1,627 AUD
Retailer 9$1,696 AUD
Retailer 10$1,764 AUD
Retailer 8$1,780 AUD
Retailer 5$1,822 AUD
Retailer 6$1,981 AUD
Retailer 7$2,153 AUD
Retailer 3$2,307 AUD
Retailer 4$2,452 AUD
MOH London$3,224 AUD

35 data points across 11 retailers

14 retailers$1,304 AUD to $3,224 AUD

A
Cheapest Retailer
-
$1,304 AUD
A
Retailer 2
-
$1,313 AUD
View
A
Retailer 3
-
$1,627 AUD
View
Final sale: no returns
B+
Retailer 4
-
$1,690 AUD
View
A
Retailer 5
-
$1,696 AUD
View
Retailer 6
-
$1,764 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$1,780 AUD
View
B+
Retailer 8
-
$1,822 AUD
View
B+
Retailer 9
-
$1,959 AUD
View
B+
Retailer 10
-
$1,981 AUD
View
B+
Retailer 11
-
$2,153 AUD
View
Retailer 12
-
$2,307 AUD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
$2,452 AUD
View
Most Expensive
B
MOH London
73F05D08F · Nov 4
$3,224 AUD
£1,744 GBP
View
13 more retailers have this diamond
Prices start from $1,304 AUDSave up to $1,919 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
1.00ct Cushion
$1,304 AUD