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Cushion|Natural|GIA

0.90ct G SI2 Cushion Natural Diamond

VG • G/SI2 • GIA 1428328163

Certificate GIA 1428328163

Diamond specifications and retailer prices

From $1,409 AUD
$990 USD
As of October 31, 2026
Save $1,406 AUD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,004 AUD at Moon Ocean · As of September 30, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-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 1428328163. Listed at 11 retailers as of October 29, 2026, with a 100% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.90
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.06°
Pavilion angle48.74°
OriginNatural
Grading LabGIA
CertificateGIA 1428328163
Dimensions5.54 × 5.13 × 3.56 mm
L/W Ratio1.08
Key to symbols
Crystal
Top View
5.54 mm5.13 mm0.90 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1428328163
Side View
Table 61.0%Crown 39.06°Girdle: MED-THKPavilion 48.74°Culet: NoneDepth 69.4%

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 31
Current: $4,004 AUD|Low: $1,293 AUD|High: $4,004 AUD|Avg: $1,969 AUD
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$1,409 AUD
Retailer 10$1,463 AUD
Retailer 8$1,466 AUD
Retailer 6$1,529 AUD
Retailer 11$1,690 AUD
Retailer 3$1,719 AUD
Retailer 9$1,764 AUD
Retailer 2$1,803 AUD
Retailer 4$2,144 AUD
Retailer 5$2,815 AUD
Moon Ocean$4,004 AUD

42 data points across 11 retailers

11 retailers$1,409 AUD to $2,815 AUD

A
Cheapest Retailer
-
$1,409 AUD
$990 USD
Final sale: no returns
A
Retailer 2
-
$1,463 AUD
$1,028 USD
View
A
Retailer 3
-
$1,466 AUD
$1,030 USD
View
A
Retailer 4
-
$1,529 AUD
$1,074 USD
View
A
Retailer 5
-
$1,690 AUD
$1,187 USD
View
A
Retailer 6
-
$1,719 AUD
$1,208 USD
View
A
Retailer 7
-
$1,764 AUD
$1,239 USD
View
A
Retailer 8
-
$1,803 AUD
£997 GBP
View
B+
Retailer 9
-
$2,144 AUD
€1,434 EUR
View
B+
Retailer 10
-
$2,815 AUD
£1,557 GBP
View
Most Expensive
Moon Ocean
NVN-317C05FF1-163 · Sep 30
$4,004 AUD
£2,214 GBP
View
Price last confirmed 32 days ago
10 more retailers have this diamond
Prices start from $1,409 AUDSave up to $1,406 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
0.90ct Cushion
$1,409 AUD