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Radiant|Natural|GIA

1.00ct G SI1 Radiant Natural Diamond

VG • G/SI1 • GIA 1438143191

Certificate GIA 1438143191

Diamond specifications and retailer prices

From £2,866 GBP
As of November 5, 2026
Save £1,610 GBP (36%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £6,392 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1438143191. Listed at 24 retailers as of November 5, 2026, with a 56% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1438143191
Dimensions6.57 × 5.27 × 3.48 mm
L/W Ratio1.25
Culet sizeNone
Top View
6.57 mm5.27 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1438143191
Side View
Table 73.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,612 GBP|Low: £2,557 GBP|High: £5,913 GBP|Avg: £3,786 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9£2,876 GBP
Retailer 5£2,924 GBP
Retailer 10£3,068 GBP
Retailer 2£3,323 GBP
Retailer 3£3,323 GBP
Retailer 1£3,612 GBP
Retailer 11£3,698 GBP
Retailer 4£3,861 GBP
Retailer 6£3,904 GBP
Retailer 7£4,476 GBP
Retailer 8£5,842 GBP

46 data points across 11 retailers

24 retailers£2,866 GBP to £4,476 GBP

B
Cheapest Retailer
-
£2,866 GBP
B
Retailer 2
-
£2,876 GBP
View
B
Retailer 3
-
£2,924 GBP
View
B
Retailer 4
-
£3,033 GBP
View
B
Retailer 5
-
£3,068 GBP
View
Final sale: no returns
B
Retailer 6
-
£3,138 GBP
View
B
Retailer 7
-
£3,149 GBP
View
Retailer 8
-
£3,323 GBP
View
Price last confirmed 9 days ago
B
Retailer 9
-
£3,323 GBP
View
B
Retailer 10
-
£3,323 GBP
View
B
Retailer 11
-
£3,502 GBP
View
B
Retailer 12
-
£3,612 GBP
View
B
Retailer 13
-
£3,620 GBP
View
Retailer 14
-
£3,698 GBP
View
Price last confirmed 29 days ago
B
Retailer 15
-
£3,736 GBP
View
B
Retailer 16
-
£3,736 GBP
View
B
Retailer 17
-
£3,835 GBP
View
B
Retailer 18
-
£3,861 GBP
View
B
Retailer 19
-
£3,863 GBP
View
B
Retailer 20
-
£3,904 GBP
View
Retailer 21
-
£4,050 GBP
View
Price last confirmed 15 days ago
B
Retailer 22
-
£4,476 GBP
View
Retailer 23
-
£5,842 GBP
View
Price under review
Most Expensive
NZ Jewellers
19683f90-eb65-4f94-b9a0-90476373af85 · Nov 5
£6,392 GBP
$8,555 USD
View
Price under review
23 more retailers have this diamond
Prices start from £2,866 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.

B
1.00ct Radiant
£2,866 GBP