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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1548357729

Certificate GIA 1548357729

Diamond specifications and retailer prices

From $1,503 AUD
As of November 6, 2026
Save $2,186 AUD (59%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,689 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 1548357729. Listed at 13 retailers as of November 4, 2026, with prices from $1,503 to $3,689, a $2,186 spread on the same certified stone. MOH London lists it at $3,689. 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
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1548357729
Dimensions7.44 × 5.05 × 3.42 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
7.44 mm5.05 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1548357729
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.8%

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: $3,689 AUD|Low: $1,439 AUD|High: $3,774 AUD|Avg: $2,235 AUD|-2.1%
MOH London
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
November 6, 2026
Retailer 2$1,503 AUD
Retailer 12$1,583 AUD
Retailer 13$1,872 AUD
Retailer 3$1,994 AUD
Retailer 4$2,020 AUD
Retailer 14$2,153 AUD
Retailer 10$2,169 AUD
Retailer 9$2,198 AUD
Retailer 5$2,224 AUD
Retailer 6$2,240 AUD
Retailer 8$2,464 AUD
Retailer 7$2,611 AUD
Retailer 11$2,634 AUD
MOH London$3,689 AUD

41 data points across 14 retailers

13 retailers$1,503 AUD to $3,689 AUD

A
Cheapest Retailer
-
$1,503 AUD
A
Retailer 2
-
$1,583 AUD
View
Final sale: no returns
B+
Retailer 3
-
$1,872 AUD
View
Retailer 4
-
$2,020 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,153 AUD
View
B+
Retailer 6
-
$2,169 AUD
View
Retailer 7
-
$2,198 AUD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$2,224 AUD
View
B+
Retailer 9
-
$2,240 AUD
View
B+
Retailer 10
-
$2,464 AUD
View
B+
Retailer 11
-
$2,611 AUD
View
Retailer 12
-
$2,634 AUD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
1B1A84F62 · Nov 4
$3,689 AUD
£1,996 GBP
View
12 more retailers have this diamond
Prices start from $1,503 AUDSave up to $2,186 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
$1,503 AUD