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Cushion|Natural|GIA

1.05ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 2407138026

Certificate GIA 2407138026

Diamond specifications and retailer prices

From $3,258 AUD
$2,283 USD
As of November 2, 2026
Save $3,620 AUD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,877 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2407138026. Listed at 21 retailers as of November 2, 2026, with prices from $3,258 to $6,877, a $3,620 spread on the same certified stone. MOH London lists it at $6,877. 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

1.05
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2407138026
Dimensions6.24 × 5.72 × 3.83 mm
L/W Ratio1.09
Top View
6.24 mm5.72 mm1.05 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2407138026
Side View
Table 72.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,877 AUD|Low: $2,867 AUD|High: $6,961 AUD|Avg: $4,330 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$3,258 AUD
Retailer 5$3,282 AUD
Retailer 6$3,439 AUD
Retailer 10$3,681 AUD
Retailer 8$4,045 AUD
Retailer 3$4,397 AUD
Retailer 7$4,625 AUD
Retailer 2$4,821 AUD
Retailer 4$5,055 AUD
MOH London$6,877 AUD

44 data points across 10 retailers

21 retailers$3,258 AUD to $6,877 AUD

B
Cheapest Retailer
-
$3,258 AUD
$2,283 USD
Retailer 2
-
$3,282 AUD
$2,300 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$3,336 AUD
$2,338 USD
View
B
Retailer 4
-
$3,349 AUD
$2,347 USD
View
B
Retailer 5
-
$3,439 AUD
$2,410 USD
View
Final sale: no returns
B
Retailer 6
-
$3,459 AUD
View
B
Retailer 7
-
$3,515 AUD
$2,464 USD
View
B
Retailer 8
-
$3,681 AUD
$2,580 USD
View
B
Retailer 9
-
$4,030 AUD
$2,824 USD
View
B
Retailer 10
-
$4,041 AUD
$2,832 USD
View
B
Retailer 11
-
$4,045 AUD
$2,835 USD
View
B
Retailer 12
-
$4,073 AUD
CA$3,965 CAD
View
B
Retailer 13
-
$4,266 AUD
$2,990 USD
View
B
Retailer 14
-
$4,266 AUD
$2,990 USD
View
B
Retailer 15
-
$4,397 AUD
£2,426 GBP
View
B
Retailer 16
-
$4,409 AUD
$3,090 USD
View
Retailer 17
-
$4,625 AUD
View
Price last confirmed 29 days ago
Retailer 18
-
$4,776 AUD
$3,347 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$4,821 AUD
€3,218 EUR
View
B
Retailer 20
-
$5,055 AUD
ZAR 57,232 ZAR
View
Most Expensive
C
MOH London
9B429F84A · Nov 2
$6,877 AUD
£3,795 GBP
View
20 more retailers have this diamond
Prices start from $3,258 AUDSave up to $3,620 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
1.05ct Cushion
$3,258 AUD