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Round|Natural|GIA

1.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6561364234

Certificate GIA 6561364234

Diamond specifications and retailer prices

From £1,175 GBP
As of November 5, 2026
Save £1,610 GBP (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,785 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561364234. Listed at 9 retailers as of November 4, 2026, with prices from £1,175 to £2,785, a £1,610 spread on the same certified stone. MOH London lists it at £2,785. 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

1.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561364234
Dimensions6.33 × 6.37 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.33 mm6.37 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561364234
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 63.4%

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 5
Current: £2,785 GBP|Low: £1,175 GBP|High: £2,906 GBP|Avg: £1,700 GBP|-4.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£1,175 GBP
Retailer 5£1,339 GBP
Retailer 6£1,377 GBP
Retailer 9£1,440 GBP
Retailer 2£1,461 GBP
Retailer 7£1,627 GBP
Retailer 3£1,672 GBP
Retailer 4£1,997 GBP
MOH London£2,785 GBP

16 data points across 9 retailers

9 retailers£1,175 GBP to £2,785 GBP

A
Cheapest Retailer
-
£1,175 GBP
A
Retailer 2
-
£1,339 GBP
View
A
Retailer 3
-
£1,377 GBP
View
A
Retailer 4
-
£1,440 GBP
View
A
Retailer 5
-
£1,461 GBP
View
A
Retailer 6
-
£1,627 GBP
View
A
Retailer 7
-
£1,672 GBP
View
B+
Retailer 8
-
£1,997 GBP
View
Most Expensive
B
MOH London
EAF58D2F9 · Nov 4
£2,785 GBP
View
8 more retailers have this diamond
Prices start from £1,175 GBPSave up to £1,610 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
1.00ct Round
£1,175 GBP