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Round|Natural|IGI

1.71ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 674514617

Shape and cutting style on the report: Round brilliant

Certificate IGI 674514617

Diamond specifications and retailer prices

From £2,528 GBP
As of November 4, 2026
Save £2,477 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,306 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.71ct natural round diamond

This 1.71ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 674514617. Listed at 15 retailers as of November 4, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 674514617
Dimensions7.59 × 7.64 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.59 mm7.64 mm1.71 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 674514617
Side View
Table 55.0%Crown 36.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £5,005 GBP|Low: £2,528 GBP|High: £5,306 GBP|Avg: £3,362 GBP|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12£2,528 GBP
Retailer 3£2,608 GBP
Retailer 9£2,745 GBP
Retailer 10£2,873 GBP
Retailer 11£2,873 GBP
Retailer 8£2,983 GBP
Retailer 5£3,303 GBP
Retailer 4£3,314 GBP
Retailer 6£3,337 GBP
Retailer 2£3,506 GBP
Retailer 7£4,804 GBP
NZ Jewellers£5,005 GBP

36 data points across 12 retailers

15 retailers£2,528 GBP to £5,005 GBP

A
Cheapest Retailer
-
£2,528 GBP
A
Retailer 2
-
£2,608 GBP
View
A
Retailer 3
-
£2,745 GBP
View
A
Retailer 4
-
£2,873 GBP
View
Retailer 5
-
£2,873 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£2,983 GBP
View
Retailer 7
-
£3,046 GBP
View
Price last confirmed 44 days ago
A
Retailer 8
-
£3,303 GBP
View
A
Retailer 9
-
£3,314 GBP
View
A
Retailer 10
-
£3,337 GBP
View
A
Retailer 11
-
£3,506 GBP
View
Retailer 12
-
£3,514 GBP
View
Price last confirmed 45 days ago
B+
Retailer 13
-
£4,804 GBP
View
B+
Retailer 14
-
£5,005 GBP
View
Most Expensive
NZ Jewellers
26683efd-7bc2-475f-93d8-b97d9173b047 · Sep 25
£5,306 GBP
$7,142 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from £2,528 GBPSave up to £2,477 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 Round
£2,528 GBP