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Radiant|Natural|GIA

1.00ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 2556137934

Certificate GIA 2556137934

Diamond specifications and retailer prices

From £1,124 GBP
As of November 6, 2026
Save £1,563 GBP (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,687 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556137934. Listed at 16 retailers as of November 4, 2026, with prices from £1,124 to £2,687, a £1,563 spread on the same certified stone. MOH London lists it at £2,687. 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

1.00
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556137934
Dimensions6.57 × 5.07 × 3.51 mm
L/W Ratio1.30
Top View
6.57 mm5.07 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556137934
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.3%

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: Nov 6
Current: £2,687 GBP|Low: £1,062 GBP|High: £3,611 GBP|Avg: £1,739 GBP|+3.6%
MOH London
Retailer 2
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Retailer 4
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Retailer 19
November 7, 2026
Retailer 16£1,124 GBP
Retailer 14£1,192 GBP
Retailer 15£1,364 GBP
Retailer 3£1,374 GBP
Retailer 8£1,481 GBP
Retailer 9£1,481 GBP
Retailer 2£1,535 GBP
Retailer 5£1,553 GBP
Retailer 13£1,579 GBP
Retailer 10£1,636 GBP
Retailer 12£1,639 GBP
Retailer 19£1,641 GBP
Retailer 6£1,685 GBP
Retailer 11£1,733 GBP
Retailer 4£1,813 GBP
Retailer 18£1,877 GBP
Retailer 17£1,922 GBP
MOH London£2,687 GBP
Retailer 7£3,611 GBP

10 data points across 19 retailers

16 retailers£1,124 GBP to £2,687 GBP

A
Cheapest Retailer
-
£1,124 GBP
A
Retailer 2
-
£1,192 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,355 GBP
View
A
Retailer 4
-
£1,364 GBP
View
A
Retailer 5
-
£1,374 GBP
View
A
Retailer 6
-
£1,535 GBP
View
B+
Retailer 7
-
£1,553 GBP
View
B+
Retailer 8
-
£1,579 GBP
View
B+
Retailer 9
-
£1,639 GBP
View
B+
Retailer 10
-
£1,641 GBP
View
B+
Retailer 11
-
£1,666 GBP
View
Retailer 12
-
£1,708 GBP
View
Price last confirmed 46 days ago
B+
Retailer 13
-
£1,813 GBP
View
B+
Retailer 14
-
£1,877 GBP
View
B+
Retailer 15
-
£1,922 GBP
View
Most Expensive
B
MOH London
1522EC515 · Nov 4
£2,687 GBP
View
15 more retailers have this diamond
Prices start from £1,124 GBPSave up to £1,563 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 Radiant
£1,124 GBP