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Cushion|Natural|GIA

0.33ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6551405799

Certificate GIA 6551405799

Diamond specifications and retailer prices

From $680 AUD
SGD 644 SGD
As of October 31, 2026
Save $942 AUD (58%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,622 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.33ct natural cushion diamond

This 0.33ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551405799. Listed at 11 retailers as of October 28, 2026, with prices from $680 to $1,622, a $942 spread on the same certified stone. Queensmith lists it at $1,622. 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

0.33
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551405799
Dimensions3.87 × 3.88 × 2.59 mm
L/W Ratio1.00
Top View
3.87 mm3.88 mm0.33 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551405799
Side View
Table 62.0%CrownGirdlePavilionCulet: NoneDepth 66.8%

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: $1,622 AUD|Low: $680 AUD|High: $1,743 AUD|Avg: $1,101 AUD|-1.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 8$680 AUD
Retailer 2$867 AUD
Retailer 7$881 AUD
Retailer 9$939 AUD
Retailer 10$951 AUD
Retailer 11$978 AUD
Retailer 5$1,043 AUD
Retailer 6$1,076 AUD
Retailer 3$1,112 AUD
Retailer 4$1,602 AUD
Queensmith$1,622 AUD

36 data points across 11 retailers

11 retailers$680 AUD to $1,622 AUD

A
Cheapest Retailer
-
$680 AUD
SGD 644 SGD
B+
Retailer 2
-
$867 AUD
£478 GBP
View
B+
Retailer 3
-
$881 AUD
$618 USD
View
B+
Retailer 4
-
$939 AUD
$658 USD
View
B+
Retailer 5
-
$951 AUD
£525 GBP
View
B+
Retailer 6
-
$978 AUD
$685 USD
View
B
Retailer 7
-
$1,043 AUD
€696 EUR
View
B
Retailer 8
-
$1,076 AUD
ZAR 12,181 ZAR
View
Retailer 9
-
$1,112 AUD
View
Price last confirmed 30 days ago
B
Retailer 10
-
$1,602 AUD
£884 GBP
View
Most Expensive
B
Queensmith
6551405799 · Oct 28
$1,622 AUD
£895 GBP
View
10 more retailers have this diamond
Prices start from $680 AUDSave up to $942 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
0.33ct Cushion
$680 AUD