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Marquise|Natural|GIA

0.53ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6551657449

Certificate GIA 6551657449

Diamond specifications and retailer prices

From $686 AUD
$481 USD
As of November 2, 2026
Save $1,677 AUD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,363 AUD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551657449. Listed at 14 retailers as of October 30, 2026, with prices from $686 to $2,363, a $1,677 spread on the same certified stone. NZ Jewellers lists it at $2,363. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551657449
Dimensions7.80 × 4.34 × 2.71 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
7.80 mm4.34 mm0.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551657449
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

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 2
Current: $2,363 AUD|Low: $686 AUD|High: $2,489 AUD|Avg: $1,088 AUD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 10$686 AUD
Retailer 11$746 AUD
Retailer 5$796 AUD
Retailer 12$799 AUD
Retailer 4$812 AUD
Retailer 14$812 AUD
Retailer 3$819 AUD
Retailer 7$860 AUD
Retailer 8$915 AUD
Retailer 9$935 AUD
Retailer 13$1,002 AUD
Retailer 6$1,169 AUD
Retailer 2$1,722 AUD
NZ Jewellers$2,363 AUD

34 data points across 14 retailers

14 retailers$686 AUD to $2,363 AUD

A
Cheapest Retailer
-
$686 AUD
$481 USD
Final sale: no returns
A
Retailer 2
-
$746 AUD
$523 USD
View
A
Retailer 3
-
$796 AUD
$558 USD
View
A
Retailer 4
-
$799 AUD
$560 USD
View
A
Retailer 5
-
$812 AUD
$569 USD
View
A
Retailer 6
-
$812 AUD
$569 USD
View
A
Retailer 7
-
$819 AUD
SGD 776 SGD
View
A
Retailer 8
-
$860 AUD
$603 USD
View
A
Retailer 9
-
$915 AUD
£505 GBP
View
A
Retailer 10
-
$935 AUD
£516 GBP
View
B+
Retailer 11
-
$1,002 AUD
$702 USD
View
Retailer 12
-
$1,169 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$1,722 AUD
£950 GBP
View
Most Expensive
B
NZ Jewellers
638f8074-8ac3-4f19-a6b3-2002f86476d3 · Oct 30
$2,363 AUD
$1,656 USD
View
13 more retailers have this diamond
Prices start from $686 AUDSave up to $1,677 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
$686 AUD