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Marquise|Natural|GIA

1.71ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6542771669

Certificate GIA 6542771669

Diamond specifications and retailer prices

From $17,597 AUD
$12,361 USD
As of November 1, 2026
Save $12,025 AUD (41%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $29,622 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542771669. Listed at 16 retailers as of November 1, 2026, with prices from $17,597 to $29,622, a $12,025 spread on the same certified stone. MOH London lists it at $29,622. 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

1.71
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542771669
Dimensions13.41 × 6.25 × 3.65 mm
L/W Ratio2.15
Top View
13.41 mm6.25 mm1.71 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542771669
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.4%

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 1
Current: $29,622 AUD|Low: $17,046 AUD|High: $30,614 AUD|Avg: $21,449 AUD|-2.2%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 17$17,597 AUD
Retailer 4$17,631 AUD
Retailer 15$18,175 AUD
Retailer 14$18,967 AUD
Retailer 9$19,065 AUD
Retailer 11$19,125 AUD
Retailer 12$20,231 AUD
Retailer 8$20,248 AUD
Retailer 10$20,252 AUD
Retailer 16$20,547 AUD
Retailer 7$21,337 AUD
Retailer 6$21,454 AUD
Retailer 13$21,454 AUD
Retailer 5$22,165 AUD
Retailer 2$23,891 AUD
Retailer 3$26,869 AUD
MOH London$29,622 AUD

42 data points across 17 retailers

16 retailers$17,597 AUD to $29,622 AUD

B+
Cheapest Retailer
-
$17,597 AUD
$12,361 USD
B+
Retailer 2
-
$17,631 AUD
$12,385 USD
View
B+
Retailer 3
-
$18,175 AUD
$12,767 USD
View
Final sale: no returns
B+
Retailer 4
-
$18,967 AUD
$13,323 USD
View
B+
Retailer 5
-
$19,125 AUD
$13,434 USD
View
B+
Retailer 6
-
$20,231 AUD
$14,211 USD
View
B+
Retailer 7
-
$20,248 AUD
$14,223 USD
View
B+
Retailer 8
-
$20,252 AUD
£11,202 GBP
View
B
Retailer 9
-
$20,547 AUD
$14,433 USD
View
B+
Retailer 10
-
$21,337 AUD
$14,988 USD
View
B+
Retailer 11
-
$21,454 AUD
$15,070 USD
View
B+
Retailer 12
-
$21,454 AUD
$15,070 USD
View
B+
Retailer 13
-
$22,165 AUD
$15,570 USD
View
B+
Retailer 14
-
$23,891 AUD
€15,983 EUR
View
B
Retailer 15
-
$26,869 AUD
$18,874 USD
View
Most Expensive
B
MOH London
D450E2016 · Nov 1
$29,622 AUD
£16,384 GBP
View
15 more retailers have this diamond
Prices start from $17,597 AUDSave up to $12,025 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
$17,597 AUD