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1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2556033829

Certificate GIA 2556033829

Diamond specifications and retailer prices

From £802 GBP
HK$8,400 HKD
As of October 30, 2026
Save £1,143 GBP (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,946 GBP at MOH London · As of October 29, 2026
View at MOH London

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 top-tier cut grade and certified by GIA 2556033829. Listed at 11 retailers as of October 29, 2026, with prices from £802 to £1,946, a £1,143 spread on the same certified stone. MOH London lists it at £1,946. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556033829
Dimensions6.45 × 6.40 × 4.00 mm
L/W Ratio1.01
Top View
6.45 mm6.40 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556033829
Side View
Table 55.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.3%

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: £1,946 GBP|Low: £802 GBP|High: £2,006 GBP|Avg: £1,235 GBP|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10£802 GBP
Retailer 9£943 GBP
Retailer 6£978 GBP
Retailer 11£996 GBP
Retailer 7£1,090 GBP
Retailer 8£1,090 GBP
Retailer 5£1,127 GBP
Retailer 4£1,171 GBP
Retailer 3£1,330 GBP
Retailer 2£1,371 GBP
MOH London£1,946 GBP

32 data points across 11 retailers

11 retailers£802 GBP to £1,946 GBP

A
Cheapest Retailer
-
£802 GBP
HK$8,400 HKD
A
Retailer 2
-
£943 GBP
$1,263 USD
View
A
Retailer 3
-
£978 GBP
$1,310 USD
View
A
Retailer 4
-
£996 GBP
$1,334 USD
View
A
Retailer 5
-
£1,090 GBP
$1,460 USD
View
A
Retailer 6
-
£1,090 GBP
$1,460 USD
View
A
Retailer 7
-
£1,127 GBP
$1,510 USD
View
A
Retailer 8
-
£1,171 GBP
View
A
Retailer 9
-
£1,330 GBP
$1,782 USD
View
B+
Retailer 10
-
£1,371 GBP
€1,750 EUR
View
Most Expensive
B
MOH London
C36F1B705 · Oct 29
£1,946 GBP
View
10 more retailers have this diamond
Prices start from £802 GBPSave up to £1,143 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
£802 GBP