CaratHunter
Plans
Round|Natural|IGI

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 754512411

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512411

Diamond specifications and retailer prices

From £849 GBP
As of November 6, 2026
Save £1,812 GBP (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,661 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 754512411. Listed at 20 retailers as of November 5, 2026, with prices from £849 to £2,661, a £1,812 spread on the same certified stone. NZ Jewellers lists it at £2,661. 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

1.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 754512411
Dimensions6.47 × 6.49 × 3.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.47 mm6.49 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512411
Side View
Table 59.0%Crown 32.1°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.8%

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 6
Current: £2,661 GBP|Low: £849 GBP|High: £2,661 GBP|Avg: £1,283 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
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2£849 GBP
Retailer 10£966 GBP
Retailer 9£1,011 GBP
Retailer 16£1,037 GBP
Retailer 13£1,044 GBP
Retailer 4£1,091 GBP
Retailer 7£1,091 GBP
Retailer 19£1,132 GBP
Retailer 6£1,141 GBP
Retailer 20£1,163 GBP
Retailer 3£1,192 GBP
Retailer 8£1,195 GBP
Retailer 14£1,211 GBP
Retailer 11£1,259 GBP
Retailer 15£1,278 GBP
Retailer 17£1,331 GBP
Retailer 18£1,467 GBP
Retailer 12£1,632 GBP
Retailer 5£1,921 GBP
NZ Jewellers£2,661 GBP

24 data points across 20 retailers

20 retailers£849 GBP to £2,661 GBP

A
Cheapest Retailer
-
£849 GBP
A
Retailer 2
-
£966 GBP
View
A
Retailer 3
-
£1,011 GBP
View
A
Retailer 4
-
£1,037 GBP
View
A
Retailer 5
-
£1,044 GBP
View
B+
Retailer 6
-
£1,091 GBP
View
Retailer 7
-
£1,091 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,132 GBP
View
B+
Retailer 9
-
£1,141 GBP
View
B+
Retailer 10
-
£1,163 GBP
View
B+
Retailer 11
-
£1,192 GBP
View
B+
Retailer 12
-
£1,195 GBP
View
A
Retailer 13
-
£1,211 GBP
View
B+
Retailer 14
-
£1,259 GBP
View
A
Retailer 15
-
£1,278 GBP
View
B+
Retailer 16
-
£1,331 GBP
View
B+
Retailer 17
-
£1,467 GBP
View
B
Retailer 18
-
£1,632 GBP
View
Retailer 19
-
£1,921 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
7026b706-70dc-4fa0-bdf0-ca6f9984962b · Nov 5
£2,661 GBP
$3,582 USD
View
19 more retailers have this diamond
Prices start from £849 GBPSave up to £1,812 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
1.01ct Round
£849 GBP