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Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 3555623838

Certificate GIA 3555623838

Diamond specifications and retailer prices

From £755 GBP
HK$7,900 HKD
As of October 30, 2026
Save £1,663 GBP (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,417 GBP at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 3555623838. Listed at 18 retailers as of October 30, 2026, with prices from £755 to £2,417, a £1,663 spread on the same certified stone. NZ Jewellers lists it at £2,417. 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

1.01
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
Crown angle38.5°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555623838
Dimensions6.22 × 6.28 × 4.00 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.22 mm6.28 mm1.01 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3555623838
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 63.9%

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: £2,417 GBP|Low: £755 GBP|High: £2,620 GBP|Avg: £1,191 GBP|-7.7%
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
October 31, 2026
Retailer 16£755 GBP
Retailer 15£829 GBP
Retailer 3£861 GBP
Retailer 13£874 GBP
Retailer 14£927 GBP
Retailer 6£946 GBP
Retailer 10£946 GBP
Retailer 7£981 GBP
Retailer 9£1,032 GBP
Retailer 11£1,036 GBP
Retailer 17£1,075 GBP
Retailer 18£1,075 GBP
Retailer 4£1,112 GBP
Retailer 2£1,117 GBP
Retailer 12£1,287 GBP
Retailer 8£1,313 GBP
Retailer 5£1,921 GBP
NZ Jewellers£2,417 GBP

33 data points across 18 retailers

18 retailers£755 GBP to £2,417 GBP

A
Cheapest Retailer
-
£755 GBP
HK$7,900 HKD
B+
Retailer 2
-
£829 GBP
$1,111 USD
View
Final sale: no returns
A
Retailer 3
-
£861 GBP
$1,153 USD
View
A
Retailer 4
-
£874 GBP
$1,171 USD
View
A
Retailer 5
-
£927 GBP
$1,242 USD
View
B+
Retailer 6
-
£946 GBP
$1,267 USD
View
B+
Retailer 7
-
£946 GBP
$1,267 USD
View
B+
Retailer 8
-
£981 GBP
$1,315 USD
View
A
Retailer 9
-
£1,032 GBP
$1,383 USD
View
B+
Retailer 10
-
£1,036 GBP
$1,388 USD
View
B+
Retailer 11
-
£1,075 GBP
$1,440 USD
View
B+
Retailer 12
-
£1,075 GBP
$1,440 USD
View
B+
Retailer 13
-
£1,112 GBP
$1,490 USD
View
A
Retailer 14
-
£1,117 GBP
View
B+
Retailer 15
-
£1,287 GBP
€1,642 EUR
View
B+
Retailer 16
-
£1,313 GBP
$1,759 USD
View
B
Retailer 17
-
£1,921 GBP
View
Most Expensive
B
NZ Jewellers
983bdb37-f25d-44f7-ba13-035da815e2cb · Oct 30
£2,417 GBP
$3,239 USD
View
17 more retailers have this diamond
Prices start from £755 GBPSave up to £1,663 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
£755 GBP