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Cushion|Natural|GIA

1.00ct G SI2 Cushion Natural Diamond

VG • G/SI2 • GIA 1528811405

Certificate GIA 1528811405

Diamond specifications and retailer prices

From $1,598 AUD
As of November 6, 2026
Save $2,165 AUD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,763 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1528811405. Listed at 12 retailers as of November 2, 2026, with prices from $1,598 to $3,763, a $2,165 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1528811405
Dimensions6.80 × 5.22 × 3.52 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.80 mm5.22 mm1.00 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1528811405
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

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: $3,763 AUD|Low: $1,598 AUD|High: $3,909 AUD|Avg: $2,314 AUD|-3.7%
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$1,598 AUD
Retailer 10$1,685 AUD
Retailer 11$1,883 AUD
Retailer 9$1,990 AUD
Retailer 4$2,112 AUD
Retailer 8$2,263 AUD
Retailer 3$2,345 AUD
Retailer 6$2,371 AUD
Retailer 7$2,377 AUD
Retailer 5$2,975 AUD
MOH London$3,763 AUD

22 data points across 11 retailers

12 retailers$1,598 AUD to $3,763 AUD

A
Cheapest Retailer
-
$1,598 AUD
A
Retailer 2
-
$1,685 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,883 AUD
View
A
Retailer 4
-
$1,990 AUD
View
A
Retailer 5
-
$2,112 AUD
View
A
Retailer 6
-
$2,263 AUD
View
A
Retailer 7
-
$2,345 AUD
View
A
Retailer 8
-
$2,362 AUD
View
A
Retailer 9
-
$2,371 AUD
View
A
Retailer 10
-
$2,377 AUD
View
B+
Retailer 11
-
$2,975 AUD
View
Most Expensive
B+
MOH London
063664E99 · Nov 2
$3,763 AUD
£2,036 GBP
View
11 more retailers have this diamond
Prices start from $1,598 AUDSave up to $2,165 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
$1,598 AUD