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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 €11,183 EUR
$12,543 USD
As of November 1, 2026
Save €7,642 EUR (41%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €18,825 EUR 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 November 1, 2026, with prices from €11,183 to €18,825, a €7,642 spread on the same certified stone. MOH London lists it at €18,825. 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 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

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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: €18,825 EUR|Low: €7,913 EUR|High: €19,026 EUR|Avg: €13,017 EUR|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
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Retailer 20
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Retailer 22
November 2, 2026
Retailer 10€7,913 EUR
Retailer 12€10,093 EUR
Retailer 9€10,589 EUR
Retailer 15€10,990 EUR
Retailer 3€11,183 EUR
Retailer 20€11,550 EUR
Retailer 18€11,840 EUR
Retailer 22€12,154 EUR
Retailer 11€12,510 EUR
Retailer 6€12,868 EUR
Retailer 13€12,872 EUR
Retailer 19€12,950 EUR
Retailer 21€13,228 EUR
Retailer 4€13,258 EUR
Retailer 8€13,258 EUR
Retailer 14€13,346 EUR
Retailer 7€13,704 EUR
Retailer 5€14,129 EUR
Retailer 2€15,184 EUR
Retailer 17€16,826 EUR
Retailer 16€17,708 EUR
MOH London€18,825 EUR

22 data points across 22 retailers

17 retailers€11,183 EUR to €18,825 EUR

B+
Cheapest Retailer
-
€11,183 EUR
$12,543 USD
B
Retailer 2
-
€11,550 EUR
$12,955 USD
View
Final sale: no returns
B
Retailer 3
-
€11,840 EUR
$13,280 USD
View
B
Retailer 4
-
€12,154 EUR
$13,632 USD
View
B
Retailer 5
-
€12,868 EUR
$14,433 USD
View
B
Retailer 6
-
€12,872 EUR
£11,368 GBP
View
Retailer 7
-
€12,950 EUR
A$22,345 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
€13,228 EUR
$14,837 USD
View
B
Retailer 9
-
€13,258 EUR
$14,870 USD
View
B
Retailer 10
-
€13,258 EUR
$14,870 USD
View
Retailer 11
-
€13,560 EUR
$15,209 USD
View
Price last confirmed 39 days ago
B
Retailer 12
-
€13,704 EUR
$15,370 USD
View
B
Retailer 13
-
€14,129 EUR
$15,847 USD
View
B
Retailer 14
-
€15,184 EUR
View
B
Retailer 15
-
€16,826 EUR
£14,860 GBP
View
B
Retailer 16
-
€17,708 EUR
ZAR 320,865 ZAR
View
Most Expensive
B
MOH London
0C76255AB · Nov 1
€18,825 EUR
£16,625 GBP
View
16 more retailers have this diamond
Prices start from €11,183 EURSave up to €7,642 EUR

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
€11,183 EUR