Round|Natural|IGI

1.06ct J IF Round Natural Diamond

EX • J/IF • IGI 815627651

Shape and cutting style on the report: Round brilliant

Certificate IGI 815627651

Diamond specifications and retailer prices

From £1,609 GBP
As of October 30, 2026
Save £1,546 GBP (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,163 GBP at NZ Jewellers · As of August 22, 2026
View at NZ Jewellers

About this 1.06ct natural round diamond

This 1.06ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 815627651. Listed at 13 retailers as of October 29, 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

1.06
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 815627651
Dimensions6.47 × 6.52 × 4.08 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.47 mm6.52 mm1.06 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815627651
Side View
Table 56.0%Crown 36.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.9%

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: Oct 30
Current: £4,163 GBP|Low: £1,600 GBP|High: £4,163 GBP|Avg: £2,252 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9£1,600 GBP
Retailer 3£1,609 GBP
Retailer 8£1,664 GBP
Retailer 7£1,791 GBP
Retailer 6£1,987 GBP
Retailer 5£1,989 GBP
Retailer 2£2,212 GBP
Retailer 4£3,155 GBP
NZ Jewellers£4,163 GBP

31 data points across 9 retailers

13 retailers£1,609 GBP to £3,155 GBP

Retailer 1
-
£1,600 GBP
$2,144 USD
Price last confirmed 38 days ago
A
Retailer 2
-
£1,609 GBP
View
Retailer 3
-
£1,791 GBP
$2,400 USD
View
Price last confirmed 23 days ago
Retailer 4
-
£1,846 GBP
$2,473 USD
View
Price last confirmed 39 days ago
Retailer 5
-
£1,874 GBP
$2,511 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
£1,987 GBP
$2,662 USD
View
A
Retailer 7
-
£1,989 GBP
$2,665 USD
View
A
Retailer 8
-
£2,212 GBP
€2,823 EUR
View
Retailer 9
-
£2,390 GBP
$3,202 USD
View
Price last confirmed 70 days ago
B+
Retailer 10
-
£3,155 GBP
View
Retailer 11
-
£3,345 GBP
$4,482 USD
View
Price last confirmed 40 days ago
Retailer 12
-
£3,744 GBP
$5,017 USD
View
Price last confirmed 33 days ago
Most Expensive
NZ Jewellers
c1644dd9-64ca-487e-853a-4f986082ad10 · Aug 22
£4,163 GBP
$5,578 USD
View
Price last confirmed 70 days ago
12 more retailers have this diamond
Prices start from £1,609 GBPSave up to £1,546 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
1.06ct Round
£1,609 GBP