CaratHunter
Plans
Marquise|Natural|GIA

1.71ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 1553578563

Certificate GIA 1553578563

Diamond specifications and retailer prices

From £3,978 GBP
As of November 5, 2026
Save £3,850 GBP (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,910 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553578563. Listed at 10 retailers as of November 4, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.62°
Pavilion angle40.68°
OriginNatural
Grading LabGIA
CertificateGIA 1553578563
Dimensions11.31 × 6.11 × 4.02 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.31 mm6.11 mm1.71 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553578563
Side View
Table 59.0%Crown 40.62°Girdle: STK-VTKPavilion 40.68°Culet: NoneDepth 65.7%

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: Nov 5
Current: £8,910 GBP|Low: £2,749 GBP|High: £8,910 GBP|Avg: £5,318 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 4£2,749 GBP
Retailer 3£3,947 GBP
Retailer 14£3,978 GBP
Retailer 5£4,067 GBP
Retailer 12£4,395 GBP
Retailer 11£4,786 GBP
Retailer 13£5,062 GBP
Retailer 8£5,108 GBP
Retailer 2£5,141 GBP
Retailer 7£5,526 GBP
Retailer 6£5,813 GBP
Retailer 10£7,799 GBP
Retailer 9£7,827 GBP
NZ Jewellers£8,910 GBP

28 data points across 14 retailers

10 retailers£3,978 GBP to £7,827 GBP

B+
Cheapest Retailer
-
£3,978 GBP
B+
Retailer 2
-
£4,395 GBP
View
B+
Retailer 3
-
£4,786 GBP
View
B+
Retailer 4
-
£5,062 GBP
View
B+
Retailer 5
-
£5,108 GBP
View
B
Retailer 6
-
£5,141 GBP
View
B
Retailer 7
-
£5,526 GBP
View
B
Retailer 8
-
£7,799 GBP
View
B
Retailer 9
-
£7,827 GBP
View
Most Expensive
NZ Jewellers
28db76eb-31cd-40a2-982c-cff330a3cb19 · Sep 30
£8,910 GBP
$11,926 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from £3,978 GBPSave up to £3,850 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
£3,978 GBP