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Marquise|Natural|GIA

1.71ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 1553578563

Certificate GIA 1553578563

Diamond specifications and retailer prices

From $7,749 AUD
As of November 5, 2026
Save $7,500 AUD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $17,357 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.71ct natural marquise diamond

This 1.71ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553578563. Listed at 10 retailers as of November 4, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.62°
Pavilion angle40.68°
OriginNatural
Grading LabGIA
CertificateGIA 1553578563
Dimensions11.31 × 6.11 × 4.02 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.31 mm6.11 mm1.71 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553578563
Side View
Table 59.0%Crown 40.62°Girdle: STK-VTKPavilion 40.68°Culet: NoneDepth 65.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $17,357 AUD|Low: $5,354 AUD|High: $17,357 AUD|Avg: $10,359 AUD
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 6, 2026
Retailer 4$5,354 AUD
Retailer 3$7,689 AUD
Retailer 14$7,749 AUD
Retailer 5$7,923 AUD
Retailer 12$8,562 AUD
Retailer 11$9,323 AUD
Retailer 13$9,860 AUD
Retailer 8$9,951 AUD
Retailer 2$10,015 AUD
Retailer 7$10,766 AUD
Retailer 6$11,324 AUD
Retailer 10$15,193 AUD
Retailer 9$15,248 AUD
NZ Jewellers$17,357 AUD

28 data points across 14 retailers

10 retailers$7,749 AUD to $15,248 AUD

B+
Cheapest Retailer
-
$7,749 AUD
B+
Retailer 2
-
$8,562 AUD
View
B+
Retailer 3
-
$9,323 AUD
View
B+
Retailer 4
-
$9,860 AUD
View
B+
Retailer 5
-
$9,951 AUD
View
B
Retailer 6
-
$10,015 AUD
View
B
Retailer 7
-
$10,766 AUD
View
B
Retailer 8
-
$15,193 AUD
View
B
Retailer 9
-
$15,248 AUD
View
Most Expensive
NZ Jewellers
28db76eb-31cd-40a2-982c-cff330a3cb19 · Sep 30
$17,357 AUD
$11,926 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $7,749 AUDSave up to $7,500 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.

B+
1.71ct Marquise
$7,749 AUD