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Marquise|Natural|GIA

1.71ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2557313720

Certificate GIA 2557313720

Diamond specifications and retailer prices

From $17,521 CAD
$12,543 USD
As of October 30, 2026
Save $11,972 CAD (41%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $29,494 CAD 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 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 2557313720. Listed at 17 retailers as of October 30, 2026, with prices from $17,521 to $29,494, a $11,972 spread on the same certified stone. MOH London lists it at $29,494. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.82°
Pavilion angle38.37°
OriginNatural
Grading LabGIA
CertificateGIA 2557313720
Dimensions11.66 × 6.16 × 3.86 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.66 mm6.16 mm1.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557313720
Side View
Table 58.0%Crown 39.82°Girdle: MED-THKPavilion 38.37°Culet: NoneDepth 62.7%

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: Oct 30
Current: $29,494 CAD|Low: $12,397 CAD|High: $29,810 CAD|Avg: $20,306 CAD|-1.1%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 1, 2026
Retailer 10$12,397 CAD
Retailer 12$15,814 CAD
Retailer 9$16,591 CAD
Retailer 15$17,218 CAD
Retailer 3$17,521 CAD
Retailer 21$18,097 CAD
Retailer 19$18,551 CAD
Retailer 23$19,043 CAD
Retailer 16$19,397 CAD
Retailer 11$19,600 CAD
Retailer 2$20,000 CAD
Retailer 6$20,161 CAD
Retailer 20$20,289 CAD
Retailer 22$20,726 CAD
Retailer 4$20,772 CAD
Retailer 8$20,772 CAD
Retailer 14$20,910 CAD
Retailer 7$21,470 CAD
Retailer 5$22,137 CAD
Retailer 17$23,795 CAD
Retailer 18$26,363 CAD
Retailer 13$27,745 CAD
MOH London$29,494 CAD

22 data points across 23 retailers

17 retailers$17,521 CAD to $29,494 CAD

B+
Cheapest Retailer
-
$17,521 CAD
$12,543 USD
B
Retailer 2
-
$18,097 CAD
$12,955 USD
View
Final sale: no returns
B
Retailer 3
-
$18,551 CAD
$13,280 USD
View
B
Retailer 4
-
$19,043 CAD
$13,632 USD
View
B
Retailer 5
-
$20,000 CAD
£11,274 GBP
View
B
Retailer 6
-
$20,161 CAD
$14,433 USD
View
Retailer 7
-
$20,289 CAD
A$22,345 AUD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$20,726 CAD
$14,837 USD
View
B
Retailer 9
-
$20,772 CAD
$14,870 USD
View
B
Retailer 10
-
$20,772 CAD
$14,870 USD
View
Retailer 11
-
$21,245 CAD
$15,209 USD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$21,470 CAD
$15,370 USD
View
B
Retailer 13
-
$22,137 CAD
$15,847 USD
View
B
Retailer 14
-
$23,795 CAD
€16,223 EUR
View
B
Retailer 15
-
$26,363 CAD
£14,860 GBP
View
B
Retailer 16
-
$27,745 CAD
ZAR 320,865 ZAR
View
Most Expensive
B
MOH London
0C76255AB · Nov 1
$29,494 CAD
£16,625 GBP
View
16 more retailers have this diamond
Prices start from $17,521 CADSave up to $11,972 CAD

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
$17,521 CAD