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Marquise|Natural|GIA

1.71ct D SI2 Marquise Natural Diamond

ID • D/SI2 • GIA 7553746870

Certificate GIA 7553746870

Diamond specifications and retailer prices

From £10,965 GBP
$14,692 USD
As of October 31, 2026
Save £7,364 GBP (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £18,329 GBP 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 7553746870. Listed at 6 retailers as of October 31, 2026, with prices from £10,965 to £18,329, a £7,364 spread on the same certified stone. MOH London lists it at £18,329. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553746870
Dimensions13.42 × 5.89 × 3.67 mm
L/W Ratio2.28
Girdle conditionFaceted
Culet sizeNone
Top View
13.42 mm5.89 mm1.71 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7553746870
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.4%

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: Oct 31
Current: £18,329 GBP|Low: £12,292 GBP|High: £18,550 GBP|Avg: £15,180 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£12,367 GBP
Retailer 3£13,224 GBP
Retailer 4£14,240 GBP
Retailer 5£16,626 GBP
MOH London£18,329 GBP

42 data points across 5 retailers

6 retailers£10,965 GBP to £18,329 GBP

B+
Cheapest Retailer
-
£10,965 GBP
$14,692 USD
B+
Retailer 2
-
£12,367 GBP
View
B+
Retailer 3
-
£13,224 GBP
View
B
Retailer 4
-
£14,240 GBP
€18,171 EUR
View
B
Retailer 5
-
£16,626 GBP
$22,277 USD
View
Most Expensive
B
MOH London
EA31BCE82 · Nov 1
£18,329 GBP
View
5 more retailers have this diamond
Prices start from £10,965 GBPSave up to £7,364 GBP

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
£10,965 GBP