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Marquise|Natural|GIA

1.71ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 6552313728

Certificate GIA 6552313728

Diamond specifications and retailer prices

From £6,601 GBP
A$13,628 AUD
As of November 2, 2026
5 retailers carry this diamond
Most expensive: £12,027 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.71ct natural marquise diamond

This 1.71ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552313728. Listed at 5 retailers as of November 2, 2026. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.02°
Pavilion angle40.13°
OriginNatural
Grading LabGIA
CertificateGIA 6552313728
Dimensions11.54 × 6.09 × 3.93 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.54 mm6.09 mm1.71 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552313728
Side View
Table 59.0%Crown 39.02°Girdle: MED-THKPavilion 40.13°Culet: NoneDepth 64.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £5,243 GBP|Low: £4,794 GBP|High: £10,142 GBP|Avg: £6,668 GBP
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
September 30, 2026
Retailer 11£4,794 GBP
Retailer 1£5,243 GBP
Retailer 5£5,595 GBP
Retailer 21£5,631 GBP
Retailer 13£5,654 GBP
Retailer 18£5,871 GBP
Retailer 10£5,987 GBP
Retailer 17£6,014 GBP
Retailer 19£6,152 GBP
Retailer 14£6,224 GBP
Retailer 6£6,409 GBP
Retailer 2£6,601 GBP
Retailer 12£6,789 GBP
Retailer 20£7,049 GBP
Retailer 9£7,206 GBP
Retailer 3£7,288 GBP
Retailer 7£7,690 GBP
Retailer 16£7,695 GBP
Retailer 4£7,916 GBP
Retailer 8£8,770 GBP
Retailer 15£10,142 GBP

12 data points across 21 retailers

5 retailers

Retailer 1
-
£6,515 GBP
$8,743 USD
Price last confirmed 34 days ago
B
Retailer 2
-
£6,601 GBP
A$13,628 AUD
View
Retailer 3
-
£7,517 GBP
$10,088 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£7,916 GBP
$10,623 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
82c5d364-0212-45a4-9c73-74c8edbeabfd · Sep 30
£12,027 GBP
$16,140 USD
View
Price last confirmed 33 days ago
4 more retailers have this diamond
Prices start from £6,601 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
£6,601 GBP