CaratHunter
Plans
Cushion|Natural|GIA

0.90ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1553406855

Certificate GIA 1553406855

Diamond specifications and retailer prices

From $1,622 AUD
HK$8,900 HKD
As of October 30, 2026
Save $2,524 AUD (61%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,146 AUD at Moon Ocean · As of October 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 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 1553406855. Listed at 20 retailers as of October 30, 2026, with prices from $1,622 to $4,146, a $2,524 spread on the same certified stone. Moon Ocean lists it at $4,146. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.58°
Pavilion angle52.04°
OriginNatural
Grading LabGIA
CertificateGIA 1553406855
Dimensions6.70 × 5.00 × 3.49 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Feather
Top View
6.70 mm5.00 mm0.90 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553406855
Side View
Table 68.0%Crown 38.58°Girdle: STK-THKPavilion 52.04°Culet: NoneDepth 69.7%

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 30
Current: $4,146 AUD|Low: $1,638 AUD|High: $4,188 AUD|Avg: $2,623 AUD|-1.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,648 AUD
Retailer 11$1,982 AUD
Retailer 10$1,993 AUD
Retailer 7$2,154 AUD
Retailer 9$2,278 AUD
Retailer 3$2,310 AUD
Retailer 4$2,391 AUD
Retailer 5$2,930 AUD
Retailer 6$3,139 AUD
Retailer 8$3,768 AUD
Moon Ocean$4,146 AUD

24 data points across 11 retailers

20 retailers$1,622 AUD to $4,146 AUD

A
Cheapest Retailer
-
$1,622 AUD
HK$8,900 HKD
A
Retailer 2
-
$1,648 AUD
₹110,277 INR
View
B+
Retailer 3
-
$1,982 AUD
$1,392 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,990 AUD
$1,398 USD
View
A
Retailer 5
-
$1,993 AUD
SGD 1,892 SGD
View
A
Retailer 6
-
$2,148 AUD
$1,509 USD
View
A
Retailer 7
-
$2,154 AUD
$1,513 USD
View
B+
Retailer 8
-
$2,278 AUD
$1,600 USD
View
B+
Retailer 9
-
$2,281 AUD
SGD 2,165 SGD
View
B+
Retailer 10
-
$2,310 AUD
$1,623 USD
View
B+
Retailer 11
-
$2,342 AUD
$1,645 USD
View
B+
Retailer 12
-
$2,359 AUD
$1,657 USD
View
B+
Retailer 13
-
$2,376 AUD
$1,669 USD
View
B+
Retailer 14
-
$2,391 AUD
£1,322 GBP
View
Retailer 15
-
$2,803 AUD
View
Price last confirmed 24 days ago
B+
Retailer 16
-
$2,930 AUD
€1,960 EUR
View
B
Retailer 17
-
$3,139 AUD
ZAR 35,619 ZAR
View
B
Retailer 18
-
$3,157 AUD
$2,218 USD
View
B
Retailer 19
-
$3,768 AUD
£2,084 GBP
View
Most Expensive
B
Moon Ocean
NVN-08D239B4C-855 · Oct 30
$4,146 AUD
£2,293 GBP
View
19 more retailers have this diamond
Prices start from $1,622 AUDSave up to $2,524 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
$1,622 AUD