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Marquise|Natural|GIA

0.53ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5566120475

Certificate GIA 5566120475

Diamond specifications and retailer prices

From $732 AUD
As of November 6, 2026
Save $1,134 AUD (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,930 AUD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.53ct natural marquise diamond

This 0.53ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566120475. Listed at 6 retailers as of November 4, 2026, with a 155% 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

0.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5566120475
Dimensions4.31 × 8.37 × 2.67 mm
L/W Ratio1.94
Top View
4.31 mm8.37 mm0.53 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566120475
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 61.9%

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: $984 AUD|Low: $732 AUD|High: $2,198 AUD|Avg: $1,248 AUD|-13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3$732 AUD
Retailer 1$984 AUD
Retailer 2$984 AUD
Retailer 4$1,866 AUD

32 data points across 4 retailers

6 retailers$732 AUD to $1,866 AUD

A
Cheapest Retailer
-
$732 AUD
Final sale: no returns
B+
Retailer 2
-
$984 AUD
View
B+
Retailer 3
-
$984 AUD
View
Retailer 4
-
$1,006 AUD
View
Price last confirmed 36 days ago
B
Retailer 5
-
$1,866 AUD
View
Most Expensive
NZ Jewellers
55872ae0-d7f1-4cb4-bb90-3bfdb4cc6f98 · Sep 25
$2,930 AUD
$2,013 USD
View
Price last confirmed 42 days ago
5 more retailers have this diamond
Prices start from $732 AUDSave up to $1,134 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
0.53ct Marquise
$732 AUD