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Radiant|Natural|IGI

0.91ct I SI1 Radiant Natural Diamond

VG • I/SI1 • IGI 671474674

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 671474674

Diamond specifications and retailer prices

From £683 GBP
$915 USD
As of November 2, 2026
Save £1,185 GBP (63%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,868 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 671474674. Listed at 19 retailers as of October 30, 2026, with prices from £683 to £1,868, a £1,185 spread on the same certified stone. NZ Jewellers lists it at £1,868. 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

0.91
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44°
OriginNatural
Grading LabIGI
CertificateIGI 671474674
Dimensions6.70 × 4.75 × 3.21 mm
L/W Ratio1.41
Culet sizePointed
Top View
6.70 mm4.75 mm0.91 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 671474674
Side View
Table 61.0%Crown 44°Girdle: STK-THKPavilionCulet: NoneDepth 67.6%

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 2
Current: £1,868 GBP|Low: £569 GBP|High: £1,868 GBP|Avg: £934 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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 15£683 GBP
Retailer 3£739 GBP
Retailer 4£749 GBP
Retailer 14£750 GBP
Retailer 6£766 GBP
Retailer 8£766 GBP
Retailer 16£793 GBP
Retailer 13£796 GBP
Retailer 17£828 GBP
Retailer 7£866 GBP
Retailer 5£884 GBP
Retailer 10£914 GBP
Retailer 9£940 GBP
Retailer 2£1,074 GBP
Retailer 11£1,122 GBP
Retailer 12£1,410 GBP
NZ Jewellers£1,868 GBP

44 data points across 17 retailers

19 retailers£683 GBP to £1,868 GBP

B+
Cheapest Retailer
-
£683 GBP
$915 USD
Final sale: no returns
A
Retailer 2
-
£739 GBP
$990 USD
View
Retailer 3
-
£740 GBP
$992 USD
View
Price last confirmed 48 days ago
B+
Retailer 4
-
£749 GBP
$1,003 USD
View
B+
Retailer 5
-
£750 GBP
$1,005 USD
View
B+
Retailer 6
-
£766 GBP
$1,026 USD
View
B+
Retailer 7
-
£766 GBP
$1,026 USD
View
B+
Retailer 8
-
£793 GBP
$1,063 USD
View
B+
Retailer 9
-
£796 GBP
$1,066 USD
View
B+
Retailer 10
-
£828 GBP
$1,110 USD
View
Retailer 11
-
£854 GBP
$1,144 USD
View
Price last confirmed 56 days ago
B+
Retailer 12
-
£866 GBP
$1,160 USD
View
B+
Retailer 13
-
£884 GBP
$1,184 USD
View
B+
Retailer 14
-
£914 GBP
View
B+
Retailer 15
-
£940 GBP
A$1,938 AUD
View
B+
Retailer 16
-
£1,074 GBP
€1,371 EUR
View
B+
Retailer 17
-
£1,122 GBP
ZAR 24,282 ZAR
View
B
Retailer 18
-
£1,410 GBP
View
Most Expensive
B
NZ Jewellers
d43b070d-b5bd-4277-bd56-1e7024ac51e0 · Oct 30
£1,868 GBP
$2,503 USD
View
18 more retailers have this diamond
Prices start from £683 GBPSave up to £1,185 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
0.91ct Radiant
£683 GBP