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Marquise|Natural|GIA

1.71ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 1568329804

Certificate GIA 1568329804

Diamond specifications and retailer prices

From $16,257 AUD
SGD 15,396 SGD
As of November 1, 2026
Save $12,879 AUD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $29,136 AUD at With Clarity · As of November 1, 2026
View at With Clarity

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded H 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 1568329804. Listed at 15 retailers as of November 1, 2026, with prices from $16,257 to $29,136, a $12,879 spread on the same certified stone. With Clarity lists it at $29,136. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.62°
Pavilion angle38.51°
OriginNatural
Grading LabGIA
CertificateGIA 1568329804
Dimensions11.88 × 6.25 × 3.69 mm
L/W Ratio1.90
Culet sizeNone
Top View
11.88 mm6.25 mm1.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568329804
Side View
Table 60.0%Crown 36.62°Girdle: VTN-THKPavilion 38.51°Culet: NDepth 59.1%

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: $20,769 AUD|Low: $16,257 AUD|High: $29,136 AUD|Avg: $20,116 AUD|+0.8%
Retailer 1
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
With Clarity
November 2, 2026
Retailer 14$16,257 AUD
Retailer 4$17,054 AUD
Retailer 10$17,223 AUD
Retailer 6$17,488 AUD
Retailer 11$17,599 AUD
Retailer 2$17,645 AUD
Retailer 7$17,858 AUD
Retailer 12$17,972 AUD
Retailer 5$20,147 AUD
Retailer 13$20,691 AUD
Retailer 1$20,769 AUD
Retailer 9$21,280 AUD
Retailer 8$23,963 AUD
Retailer 3$25,149 AUD
With Clarity$29,136 AUD

34 data points across 15 retailers

15 retailers$16,257 AUD to $29,136 AUD

B+
Cheapest Retailer
-
$16,257 AUD
SGD 15,396 SGD
B+
Retailer 2
-
$17,054 AUD
$11,952 USD
View
B+
Retailer 3
-
$17,223 AUD
$12,070 USD
View
B
Retailer 4
-
$17,488 AUD
$12,256 USD
View
B+
Retailer 5
-
$17,599 AUD
SGD 16,667 SGD
View
B
Retailer 6
-
$17,645 AUD
$12,366 USD
View
B+
Retailer 7
-
$17,858 AUD
£9,854 GBP
View
B
Retailer 8
-
$17,972 AUD
$12,595 USD
View
B
Retailer 9
-
$20,147 AUD
$14,120 USD
View
B
Retailer 10
-
$20,691 AUD
$14,501 USD
View
B
Retailer 11
-
$20,769 AUD
€13,862 EUR
View
B
Retailer 12
-
$21,280 AUD
$14,914 USD
View
B
Retailer 13
-
$23,963 AUD
$16,794 USD
View
B
Retailer 14
-
$25,149 AUD
$17,625 USD
View
Most Expensive
B
With Clarity
1568329804 · Nov 1
$29,136 AUD
$20,419 USD
View
14 more retailers have this diamond
Prices start from $16,257 AUDSave up to $12,879 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
$16,257 AUD