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Cushion|Natural|GIA

0.90ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5566324733

Certificate GIA 5566324733

Diamond specifications and retailer prices

From $1,207 AUD
As of November 6, 2026
Save $1,295 AUD (52%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $2,502 AUD at Moon Ocean · As of November 6, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566324733. Listed at 5 retailers as of November 6, 2026, with prices from $1,207 to $2,502, a $1,295 spread on the same certified stone. Moon Ocean lists it at $2,502. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566324733
Dimensions6.16 × 4.97 × 3.26 mm
L/W Ratio1.24
Key to symbols
Crystal, Feather
Top View
6.16 mm4.97 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566324733
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.6%

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: Nov 6
Current: $2,502 AUD|Low: $1,035 AUD|High: $2,680 AUD|Avg: $1,907 AUD|-5.7%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$1,207 AUD
Retailer 5$1,563 AUD
Retailer 2$1,754 AUD
Retailer 3$2,390 AUD
Moon Ocean$2,502 AUD

44 data points across 5 retailers

5 retailers$1,207 AUD to $2,502 AUD

A
Cheapest Retailer
-
$1,207 AUD
Final sale: no returns
B+
Retailer 2
-
$1,563 AUD
View
B+
Retailer 3
-
$1,754 AUD
View
B+
Retailer 4
-
$2,390 AUD
View
Most Expensive
B
Moon Ocean
NVN-FEB50EF55-733 · Nov 6
$2,502 AUD
£1,353 GBP
View
4 more retailers have this diamond
Prices start from $1,207 AUDSave up to $1,295 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
$1,207 AUD