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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2556351055

Certificate GIA 2556351055

Diamond specifications and retailer prices

From $1,913 AUD
₹128,005 INR
As of October 26, 2026
Save $2,543 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,457 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556351055. Listed at 16 retailers as of October 26, 2026, with prices from $1,913 to $4,457, a $2,543 spread on the same certified stone. MOH London lists it at $4,457. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556351055
Dimensions6.41 × 5.14 × 3.65 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.41 mm5.14 mm1.00 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556351055
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.9%

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: Oct 26
Current: $4,457 AUD|Low: $1,908 AUD|High: $4,831 AUD|Avg: $2,842 AUD|-7.7%
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
Retailer 15
Retailer 16
October 27, 2026
Retailer 12$1,913 AUD
Retailer 16$2,002 AUD
Retailer 7$2,259 AUD
Retailer 6$2,289 AUD
Retailer 14$2,315 AUD
Retailer 2$2,485 AUD
Retailer 5$2,540 AUD
Retailer 13$2,578 AUD
Retailer 3$2,627 AUD
Retailer 4$2,735 AUD
Retailer 8$2,823 AUD
Retailer 9$2,830 AUD
Retailer 15$2,847 AUD
Retailer 11$3,093 AUD
Retailer 10$3,451 AUD
MOH London$4,457 AUD

18 data points across 16 retailers

16 retailers$1,913 AUD to $4,457 AUD

A
Cheapest Retailer
-
$1,913 AUD
₹128,005 INR
Retailer 2
-
$2,259 AUD
$1,587 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$2,289 AUD
$1,608 USD
View
A
Retailer 4
-
$2,315 AUD
$1,626 USD
View
A
Retailer 5
-
$2,485 AUD
£1,375 GBP
View
B+
Retailer 6
-
$2,540 AUD
$1,784 USD
View
A
Retailer 7
-
$2,578 AUD
$1,811 USD
View
B+
Retailer 8
-
$2,627 AUD
$1,845 USD
View
A
Retailer 9
-
$2,735 AUD
$1,921 USD
View
A
Retailer 10
-
$2,823 AUD
$1,983 USD
View
A
Retailer 11
-
$2,830 AUD
£1,565 GBP
View
A
Retailer 12
-
$2,847 AUD
$2,000 USD
View
B+
Retailer 13
-
$3,093 AUD
ZAR 35,100 ZAR
View
B+
Retailer 14
-
$3,451 AUD
€2,309 EUR
View
Retailer 15
-
$3,555 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
4344F8F96 · Oct 26
$4,457 AUD
£2,465 GBP
View
15 more retailers have this diamond
Prices start from $1,913 AUDSave up to $2,543 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
$1,913 AUD