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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 2376933978

Certificate GIA 2376933978

Diamond specifications and retailer prices

From $2,863 AUD
As of November 6, 2026
Save $1,547 AUD (35%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,410 AUD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J 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 2376933978. Listed at 16 retailers as of November 6, 2026, with prices from $2,863 to $4,410, a $1,547 spread on the same certified stone. Washington Diamond lists it at $4,410. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2376933978
Dimensions6.11 × 5.45 × 3.78 mm
L/W Ratio1.12
Top View
6.11 mm5.45 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2376933978
Side View
Table 75.0%CrownGirdle: MED-MEDPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
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 6
Current: $4,144 AUD|Low: $2,777 AUD|High: $4,410 AUD|Avg: $3,275 AUD|+2.9%
Retailer 1
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
Washington Diamond
November 6, 2026
Retailer 14$2,777 AUD
Retailer 11$2,863 AUD
Retailer 8$2,876 AUD
Retailer 7$2,886 AUD
Retailer 13$3,011 AUD
Retailer 9$3,017 AUD
Retailer 15$3,096 AUD
Retailer 4$3,180 AUD
Retailer 10$3,337 AUD
Retailer 12$3,459 AUD
Retailer 6$3,481 AUD
Retailer 5$3,509 AUD
Retailer 2$3,522 AUD
Retailer 3$3,522 AUD
Retailer 16$3,639 AUD
Retailer 1$4,144 AUD
Washington Diamond$4,410 AUD

22 data points across 17 retailers

16 retailers$2,863 AUD to $4,410 AUD

B
Cheapest Retailer
-
$2,863 AUD
B
Retailer 2
-
$2,876 AUD
View
B
Retailer 3
-
$2,886 AUD
View
B
Retailer 4
-
$3,011 AUD
View
B
Retailer 5
-
$3,017 AUD
View
B
Retailer 6
-
$3,096 AUD
View
B
Retailer 7
-
$3,180 AUD
View
B
Retailer 8
-
$3,337 AUD
View
B
Retailer 9
-
$3,459 AUD
View
B
Retailer 10
-
$3,481 AUD
View
B
Retailer 11
-
$3,509 AUD
View
B
Retailer 12
-
$3,522 AUD
View
B
Retailer 13
-
$3,522 AUD
View
C
Retailer 14
-
$3,639 AUD
View
C
Retailer 15
-
$4,144 AUD
View
Most Expensive
Washington Diamond
1917992662 · Nov 6
$4,410 AUD
$3,030 USD
View
15 more retailers have this diamond
Prices start from $2,863 AUDSave up to $1,547 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
$2,863 AUD