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Marquise|Natural|GIA

1.71ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6552471720

Certificate GIA 6552471720

Diamond specifications and retailer prices

From £4,868 GBP
SGD 8,828 SGD
As of October 27, 2026
Save £2,629 GBP (35%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £7,497 GBP at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded F 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 6552471720. Listed at 10 retailers as of October 27, 2026, with prices from £4,868 to £7,497, a £2,629 spread on the same certified stone. The Diamond Guys lists it at £7,497. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552471720
Dimensions11.87 × 6.20 × 3.96 mm
L/W Ratio1.91
Culet sizeNone
Top View
11.87 mm6.20 mm1.71 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552471720
Side View
Table 60.0%Crown 39.4°Girdle: MED-THKPavilion 41.2°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £4,868 GBP|Low: £4,696 GBP|High: £9,355 GBP|Avg: £6,767 GBP|-9.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
October 27, 2026
Retailer 2£4,696 GBP
Retailer 1£4,868 GBP
Retailer 11£5,637 GBP
Retailer 5£5,713 GBP
Retailer 6£5,840 GBP
Retailer 10£6,041 GBP
Retailer 9£6,842 GBP
Retailer 4£6,861 GBP
Retailer 7£6,903 GBP
Retailer 8£7,030 GBP
The Diamond Guys£7,497 GBP
Retailer 3£9,355 GBP

28 data points across 12 retailers

10 retailers£4,868 GBP to £7,497 GBP

A
Cheapest Retailer
-
£4,868 GBP
SGD 8,828 SGD
Retailer 2
-
£5,637 GBP
SGD 10,223 SGD
View
Price last confirmed 22 days ago
Retailer 3
-
£5,713 GBP
$7,666 USD
View
Price last confirmed 7 days ago
Retailer 4
-
£5,840 GBP
$7,837 USD
View
Price last confirmed 9 days ago
Retailer 5
-
£6,041 GBP
$8,106 USD
View
Price last confirmed 10 days ago
Retailer 6
-
£6,842 GBP
$9,182 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£6,861 GBP
€8,769 EUR
View
Retailer 8
-
£6,903 GBP
$9,264 USD
View
Price last confirmed 9 days ago
Retailer 9
-
£7,030 GBP
$9,434 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
The Diamond Guys
1963430014 · Nov 2
£7,497 GBP
$10,061 USD
View
9 more retailers have this diamond
Prices start from £4,868 GBPSave up to £2,629 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.

A
1.71ct Marquise
£4,868 GBP