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Marquise|Natural|GIA

1.71ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6552304084

Certificate GIA 6552304084

Diamond specifications and retailer prices

From £9,700 GBP
CA$18,078 CAD
As of November 2, 2026
Save £2,827 GBP (23%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £12,526 GBP at Yorxs · As of November 2, 2026
View at Yorxs

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 6552304084. Listed at 10 retailers as of November 2, 2026, with prices from £9,700 to £12,526, a £2,827 spread on the same certified stone. Yorxs lists it at £12,526. 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 angle39.51°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552304084
Dimensions11.51 × 6.16 × 3.97 mm
L/W Ratio1.87
Culet sizeNone
Top View
11.51 mm6.16 mm1.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552304084
Side View
Table 57.0%Crown 39.51°Girdle: MED-VTKPavilion 39.8°Culet: NoneDepth 64.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £11,841 GBP|Low: £6,729 GBP|High: £12,526 GBP|Avg: £10,594 GBP|-1.1%
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
Yorxs
November 3, 2026
Retailer 5£6,729 GBP
Retailer 13£8,162 GBP
Retailer 3£8,650 GBP
Retailer 4£9,114 GBP
Retailer 6£9,700 GBP
Retailer 2£10,445 GBP
Retailer 10£11,326 GBP
Retailer 9£11,781 GBP
Retailer 11£11,781 GBP
Retailer 1£11,841 GBP
Retailer 7£12,029 GBP
Retailer 12£12,176 GBP
Retailer 8£12,410 GBP
Yorxs£12,526 GBP

22 data points across 14 retailers

10 retailers£9,700 GBP to £12,526 GBP

B
Cheapest Retailer
-
£9,700 GBP
CA$18,078 CAD
B
Retailer 2
-
£11,326 GBP
$15,199 USD
View
B
Retailer 3
-
£11,781 GBP
$15,810 USD
View
B
Retailer 4
-
£11,781 GBP
$15,810 USD
View
B
Retailer 5
-
£11,841 GBP
View
B
Retailer 6
-
£12,029 GBP
$16,142 USD
View
B
Retailer 7
-
£12,176 GBP
$16,340 USD
View
Retailer 8
-
£12,410 GBP
$16,654 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£12,410 GBP
$16,654 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Yorxs
621132763 · Nov 2
£12,526 GBP
€16,009 EUR
View
9 more retailers have this diamond
Prices start from £9,700 GBPSave up to £2,827 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
£9,700 GBP