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Marquise|Natural|IGI

1.71ct K SI2 Marquise Natural Diamond

VG • K/SI2 • IGI 835613728

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 835613728

Diamond specifications and retailer prices

From £2,968 GBP
As of November 6, 2026
Save £3,640 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £6,607 GBP at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 835613728. Listed at 14 retailers as of November 5, 2026, with prices from £2,968 to £6,607, a £3,640 spread on the same certified stone. NZ Jewellers lists it at £6,607. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle34.9°
OriginNatural
Grading LabIGI
CertificateIGI 835613728
Dimensions12.56 × 6.26 × 3.66 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Top View
12.56 mm6.26 mm1.71 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 835613728
Side View
Table 56.0%Crown 39.2°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 58.5%

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: Nov 6
Current: £6,607 GBP|Low: £2,968 GBP|High: £6,607 GBP|Avg: £4,269 GBP
NZ Jewellers
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
November 6, 2026
Retailer 2£2,968 GBP
Retailer 5£3,446 GBP
Retailer 6£3,603 GBP
Retailer 12£3,923 GBP
Retailer 7£3,937 GBP
Retailer 4£3,951 GBP
Retailer 11£3,951 GBP
Retailer 14£3,951 GBP
Retailer 10£4,057 GBP
Retailer 3£4,064 GBP
Retailer 8£4,197 GBP
Retailer 13£4,558 GBP
Retailer 9£6,275 GBP
NZ Jewellers£6,607 GBP

35 data points across 14 retailers

14 retailers£2,968 GBP to £6,607 GBP

A
Cheapest Retailer
-
£2,968 GBP
B+
Retailer 2
-
£3,446 GBP
View
B+
Retailer 3
-
£3,603 GBP
View
B+
Retailer 4
-
£3,923 GBP
View
B+
Retailer 5
-
£3,937 GBP
View
B+
Retailer 6
-
£3,951 GBP
View
B+
Retailer 7
-
£3,951 GBP
View
Retailer 8
-
£3,951 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£4,057 GBP
View
B+
Retailer 10
-
£4,064 GBP
View
B+
Retailer 11
-
£4,197 GBP
View
B+
Retailer 12
-
£4,558 GBP
View
B
Retailer 13
-
£6,275 GBP
View
Most Expensive
B
NZ Jewellers
1b1b6266-81f8-45e1-bb00-f08c3993680a · Nov 5
£6,607 GBP
$8,844 USD
View
13 more retailers have this diamond
Prices start from £2,968 GBPSave up to £3,640 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
£2,968 GBP