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Round|Natural|GIA

1.01ct J IF Round Natural Diamond

EX • J/IF • GIA 1488589185

Certificate GIA 1488589185

Diamond specifications and retailer prices

From £1,889 GBP
As of November 6, 2026
Save £2,519 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,407 GBP at NZ Jewellers · As of November 2, 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 J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1488589185. Listed at 20 retailers as of November 2, 2026, with prices from £1,889 to £4,407, a £2,519 spread on the same certified stone. NZ Jewellers lists it at £4,407. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1488589185
Dimensions6.38 × 6.37 × 4.01 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Girdle conditionFaceted
Cert comments
NO BGM…NO BLACK...Minor details of polish are not shown.
Top View
6.38 mm6.37 mm1.01 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1488589185
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°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: Nov 6
Current: £2,184 GBP|Low: £1,898 GBP|High: £3,738 GBP|Avg: £2,395 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£1,898 GBP
Retailer 2£1,944 GBP
Retailer 9£1,945 GBP
Retailer 1£2,184 GBP
Retailer 11£2,190 GBP
Retailer 4£2,219 GBP
Retailer 10£2,362 GBP
Retailer 7£2,450 GBP
Retailer 5£2,462 GBP
Retailer 6£2,573 GBP
Retailer 8£3,684 GBP

44 data points across 11 retailers

20 retailers£1,889 GBP to £4,407 GBP

A
Cheapest Retailer
-
£1,889 GBP
A
Retailer 2
-
£1,898 GBP
View
A
Retailer 3
-
£1,944 GBP
View
A
Retailer 4
-
£1,945 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,066 GBP
View
Retailer 6
-
£2,109 GBP
View
Price last confirmed 56 days ago
B+
Retailer 7
-
£2,109 GBP
View
Retailer 8
-
£2,109 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,184 GBP
View
B+
Retailer 10
-
£2,190 GBP
View
B+
Retailer 11
-
£2,219 GBP
View
Retailer 12
-
£2,362 GBP
View
Price last confirmed 30 days ago
Retailer 13
-
£2,433 GBP
View
Price last confirmed 60 days ago
B+
Retailer 14
-
£2,433 GBP
View
B+
Retailer 15
-
£2,450 GBP
View
B+
Retailer 16
-
£2,462 GBP
View
B+
Retailer 17
-
£2,573 GBP
View
B
Retailer 18
-
£3,684 GBP
View
Retailer 19
-
£4,407 GBP
View
Price last confirmed 57 days ago
Most Expensive
B
NZ Jewellers
da2b8d56-1a72-4b69-ad4f-f6fe86460a3c · Nov 2
£4,407 GBP
$5,932 USD
View
19 more retailers have this diamond
Prices start from £1,889 GBPSave up to £2,519 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
£1,889 GBP