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Round|Natural|IGI

1.71ct K VS1 Round Natural Diamond

EX • K/VS1 • IGI 639424828

Shape and cutting style on the report: Round brilliant

Certificate IGI 639424828

Diamond specifications and retailer prices

From £2,473 GBP
As of November 5, 2026
Save £2,381 GBP (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,930 GBP at NZ Jewellers · As of September 19, 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 639424828. Listed at 17 retailers as of November 5, 2026, with a 96% 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 angle35°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 639424828
Dimensions7.69 × 7.63 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.69 mm7.63 mm1.71 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 639424828
Side View
Table 56.0%Crown 35°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.0%

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 5
Current: £4,855 GBP|Low: £2,473 GBP|High: £5,081 GBP|Avg: £3,282 GBP|-4.4%
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
November 6, 2026
Retailer 9£2,473 GBP
Retailer 12£2,515 GBP
Retailer 5£2,530 GBP
Retailer 13£2,786 GBP
Retailer 4£2,829 GBP
Retailer 10£2,894 GBP
Retailer 2£2,901 GBP
Retailer 7£3,203 GBP
Retailer 11£3,215 GBP
Retailer 6£3,243 GBP
Retailer 8£3,401 GBP
Retailer 3£4,732 GBP
NZ Jewellers£4,855 GBP

35 data points across 13 retailers

17 retailers£2,473 GBP to £4,855 GBP

A
Cheapest Retailer
-
£2,473 GBP
A
Retailer 2
-
£2,515 GBP
View
A
Retailer 3
-
£2,530 GBP
View
Retailer 4
-
£2,702 GBP
View
Price last confirmed 102 days ago
A
Retailer 5
-
£2,786 GBP
View
Retailer 6
-
£2,829 GBP
View
Price last confirmed 44 days ago
Retailer 7
-
£2,829 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
£2,894 GBP
View
A
Retailer 9
-
£2,901 GBP
View
A
Retailer 10
-
£3,203 GBP
View
A
Retailer 11
-
£3,215 GBP
View
A
Retailer 12
-
£3,243 GBP
View
Retailer 13
-
£3,265 GBP
View
Price last confirmed 45 days ago
A
Retailer 14
-
£3,401 GBP
View
B+
Retailer 15
-
£4,732 GBP
View
B+
Retailer 16
-
£4,855 GBP
View
Most Expensive
NZ Jewellers
ece66a54-529a-4bbf-bcc1-8db3d606065c · Sep 19
£4,930 GBP
$6,635 USD
View
Price last confirmed 47 days ago
16 more retailers have this diamond
Prices start from £2,473 GBPSave up to £2,381 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
£2,473 GBP