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Cushion|Natural|GIA

1.00ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6385370928

Certificate GIA 6385370928

Diamond specifications and retailer prices

From $2,562 AUD
As of November 4, 2026
Save $3,046 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,608 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 6385370928. Listed at 21 retailers as of November 4, 2026, with prices from $2,562 to $5,608, a $3,046 spread on the same certified stone. MOH London lists it at $5,608. 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 6385370928
Dimensions6.68 × 5.35 × 3.55 mm
L/W Ratio1.25
Top View
6.68 mm5.35 mm1.00 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385370928
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $5,608 AUD|Low: $2,237 AUD|High: $5,691 AUD|Avg: $3,518 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$2,237 AUD
Retailer 6$2,562 AUD
Retailer 7$2,908 AUD
Retailer 2$3,113 AUD
Retailer 8$3,298 AUD
Retailer 4$3,487 AUD
Retailer 5$3,916 AUD
Retailer 9$3,946 AUD
Retailer 3$3,985 AUD
MOH London$5,608 AUD

41 data points across 10 retailers

21 retailers$2,562 AUD to $5,608 AUD

B+
Cheapest Retailer
-
$2,562 AUD
B+
Retailer 2
-
$2,608 AUD
View
B+
Retailer 3
-
$2,627 AUD
View
B+
Retailer 4
-
$2,732 AUD
View
B+
Retailer 5
-
$2,735 AUD
View
B+
Retailer 6
-
$2,805 AUD
View
Retailer 7
-
$2,908 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$2,962 AUD
View
B+
Retailer 9
-
$2,997 AUD
View
B+
Retailer 10
-
$3,113 AUD
View
B
Retailer 11
-
$3,196 AUD
View
B
Retailer 12
-
$3,298 AUD
View
B
Retailer 13
-
$3,377 AUD
View
B
Retailer 14
-
$3,377 AUD
View
B
Retailer 15
-
$3,487 AUD
View
B
Retailer 16
-
$3,493 AUD
View
B
Retailer 17
-
$3,916 AUD
View
Retailer 18
-
$3,946 AUD
View
Price last confirmed 32 days ago
B
Retailer 19
-
$3,985 AUD
View
B
Retailer 20
-
$4,611 AUD
View
Most Expensive
B
MOH London
4AE842D31 · Nov 4
$5,608 AUD
£3,034 GBP
View
20 more retailers have this diamond
Prices start from $2,562 AUDSave up to $3,046 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.

B+
1.00ct Cushion
$2,562 AUD