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Cushion|Natural|GIA

0.50ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6545567548

Certificate GIA 6545567548

Diamond specifications and retailer prices

From $451 AUD
As of November 5, 2026
Save $629 AUD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,329 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545567548. Listed at 12 retailers as of November 5, 2026, with a 139% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545567548
Dimensions4.59 × 4.32 × 2.98 mm
L/W Ratio1.06
Top View
4.59 mm4.32 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545567548
Side View
Table 62.0%CrownGirdlePavilionCulet: NoneDepth 69.0%

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 5
Current: $2,329 AUD|Low: $448 AUD|High: $2,421 AUD|Avg: $974 AUD
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 10$451 AUD
Retailer 11$589 AUD
Retailer 6$600 AUD
Retailer 7$607 AUD
Retailer 9$648 AUD
Retailer 12$659 AUD
Retailer 8$729 AUD
Retailer 3$763 AUD
Retailer 5$876 AUD
Retailer 4$929 AUD
Retailer 2$1,080 AUD
Queensmith$2,329 AUD

41 data points across 12 retailers

12 retailers$451 AUD to $1,080 AUD

A
Cheapest Retailer
-
$451 AUD
A
Retailer 2
-
$589 AUD
View
A
Retailer 3
-
$600 AUD
View
A
Retailer 4
-
$607 AUD
View
A
Retailer 5
-
$648 AUD
View
A
Retailer 6
-
$659 AUD
View
A
Retailer 7
-
$729 AUD
View
B+
Retailer 8
-
$763 AUD
View
B+
Retailer 9
-
$876 AUD
View
Retailer 10
-
$929 AUD
View
Price last confirmed 35 days ago
B+
Retailer 11
-
$1,080 AUD
View
Most Expensive
Queensmith
6545567548 · Oct 28
$2,329 AUD
£1,260 GBP
View
Price last confirmed 9 days ago
11 more retailers have this diamond
Prices start from $451 AUDSave up to $629 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
0.50ct Cushion
$451 AUD