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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6402234126

Certificate GIA 6402234126

Diamond specifications and retailer prices

From $1,739 AUD
As of November 4, 2026
Save $2,024 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,763 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6402234126. Listed at 20 retailers as of November 4, 2026, with prices from $1,739 to $3,763, a $2,024 spread on the same certified stone. MOH London lists it at $3,763. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6402234126
Dimensions5.65 × 5.36 × 3.70 mm
L/W Ratio1.05
Top View
5.65 mm5.36 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6402234126
Side View
Table 60.0%CrownGirdle: VTK-ETKPavilionCulet: 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 4
Current: $3,763 AUD|Low: $1,739 AUD|High: $3,819 AUD|Avg: $2,365 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 7$1,739 AUD
Retailer 3$1,802 AUD
Retailer 10$1,822 AUD
Retailer 9$1,880 AUD
Retailer 11$1,952 AUD
Retailer 2$2,070 AUD
Retailer 8$2,144 AUD
Retailer 6$2,378 AUD
Retailer 5$2,628 AUD
Retailer 4$2,954 AUD
MOH London$3,763 AUD

33 data points across 11 retailers

20 retailers$1,739 AUD to $3,763 AUD

A
Cheapest Retailer
-
$1,739 AUD
B+
Retailer 2
-
$1,802 AUD
View
Final sale: no returns
B+
Retailer 3
-
$1,808 AUD
View
A
Retailer 4
-
$1,822 AUD
View
A
Retailer 5
-
$1,880 AUD
View
Retailer 6
-
$1,952 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$2,070 AUD
View
B+
Retailer 8
-
$2,074 AUD
View
B+
Retailer 9
-
$2,110 AUD
View
B+
Retailer 10
-
$2,144 AUD
View
B+
Retailer 11
-
$2,182 AUD
View
B+
Retailer 12
-
$2,183 AUD
View
B+
Retailer 13
-
$2,329 AUD
View
B+
Retailer 14
-
$2,329 AUD
View
B+
Retailer 15
-
$2,378 AUD
View
B+
Retailer 16
-
$2,401 AUD
View
B+
Retailer 17
-
$2,628 AUD
View
Retailer 18
-
$2,816 AUD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$2,954 AUD
View
Most Expensive
B
MOH London
E71019BC0 · Nov 4
$3,763 AUD
£2,036 GBP
View
19 more retailers have this diamond
Prices start from $1,739 AUDSave up to $2,024 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
$1,739 AUD