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Marquise|Natural|GIA

1.73ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1563282592

Certificate GIA 1563282592

Diamond specifications and retailer prices

From $8,265 AUD
As of November 6, 2026
Save $10,176 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,441 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.73ct natural marquise diamond

This 1.73ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563282592. Listed at 16 retailers as of November 5, 2026, with prices from $8,265 to $18,441, a $10,176 spread on the same certified stone. NZ Jewellers lists it at $18,441. 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

1.73
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563282592
Dimensions11.92 × 6.26 × 3.98 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
11.92 mm6.26 mm1.73 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1563282592
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.7%

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: $8,265 AUD|Low: $8,265 AUD|High: $15,531 AUD|Avg: $11,130 AUD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$8,265 AUD
Retailer 4$10,294 AUD
Retailer 6$10,755 AUD
Retailer 2$10,988 AUD
Retailer 7$11,196 AUD
Retailer 3$11,330 AUD
Retailer 8$11,374 AUD
Retailer 5$15,324 AUD

30 data points across 8 retailers

16 retailers$8,265 AUD to $18,441 AUD

A
Cheapest Retailer
-
$8,265 AUD
B+
Retailer 2
-
$9,331 AUD
View
B+
Retailer 3
-
$9,616 AUD
View
B+
Retailer 4
-
$9,860 AUD
View
Retailer 5
-
$10,178 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$10,294 AUD
View
B
Retailer 7
-
$10,755 AUD
View
B+
Retailer 8
-
$10,988 AUD
View
B
Retailer 9
-
$11,026 AUD
View
B
Retailer 10
-
$11,196 AUD
View
B
Retailer 11
-
$11,263 AUD
View
B
Retailer 12
-
$11,330 AUD
View
B
Retailer 13
-
$11,374 AUD
View
B
Retailer 14
-
$12,723 AUD
View
B
Retailer 15
-
$15,324 AUD
View
Most Expensive
B
NZ Jewellers
c17802bd-7fcc-4d68-9f8f-e54b2126050f · Nov 5
$18,441 AUD
$12,671 USD
View
15 more retailers have this diamond
Prices start from $8,265 AUDSave up to $10,176 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
1.73ct Marquise
$8,265 AUD