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0.71ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 670405190

Shape and cutting style on the report: Round brilliant

Certificate IGI 670405190

Diamond specifications and retailer prices

From £257 GBP
As of November 6, 2026
Save £933 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,190 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.71ct natural round diamond

This 0.71ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670405190. Listed at 12 retailers as of November 5, 2026, with prices from £257 to £1,190, a £933 spread on the same certified stone. NZ Jewellers lists it at £1,190. 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

0.71
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 670405190
Dimensions5.73 × 5.70 × 3.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.73 mm5.70 mm0.71 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670405190
Side View
Table 59.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.8%

Caratlytics Score

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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: £257 GBP|Low: £257 GBP|High: £886 GBP|Avg: £482 GBP|-4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£257 GBP
Retailer 3£383 GBP
Retailer 7£409 GBP
Retailer 8£421 GBP
Retailer 5£480 GBP
Retailer 2£501 GBP
Retailer 6£502 GBP
Retailer 4£875 GBP

45 data points across 8 retailers

12 retailers£257 GBP to £1,190 GBP

A
Cheapest Retailer
-
£257 GBP
A
Retailer 2
-
£380 GBP
View
A
Retailer 3
-
£383 GBP
View
Retailer 4
-
£409 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£409 GBP
View
A
Retailer 6
-
£438 GBP
View
A
Retailer 7
-
£477 GBP
View
A
Retailer 8
-
£480 GBP
View
A
Retailer 9
-
£501 GBP
View
A
Retailer 10
-
£502 GBP
View
B
Retailer 11
-
£875 GBP
View
Most Expensive
B
NZ Jewellers
d8a109e0-b145-4883-9a17-f0f93350aedb · Nov 5
£1,190 GBP
$1,602 USD
View
11 more retailers have this diamond
Prices start from £257 GBPSave up to £933 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
0.71ct Round
£257 GBP