Radiant|Natural|GIA

1.00ct G SI1 Radiant Natural Diamond

GD • G/SI1 • GIA 1555692907

Certificate GIA 1555692907

Diamond specifications and retailer prices

From £1,168 GBP
As of November 6, 2026
Save £1,418 GBP (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,558 GBP at NZ Jewellers · As of October 30, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1555692907. Listed at 21 retailers as of November 4, 2026, with a 121% 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555692907
Dimensions6.39 × 4.92 × 3.44 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
6.39 mm4.92 mm1.00 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1555692907
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.9%

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: Nov 6
Current: £3,558 GBP|Low: £1,100 GBP|High: £3,585 GBP|Avg: £1,693 GBP|-0.7%
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
Retailer 19
November 6, 2026
Retailer 4£1,100 GBP
Retailer 15£1,168 GBP
Retailer 12£1,304 GBP
Retailer 16£1,318 GBP
Retailer 11£1,420 GBP
Retailer 8£1,459 GBP
Retailer 10£1,459 GBP
Retailer 3£1,461 GBP
Retailer 13£1,509 GBP
Retailer 9£1,526 GBP
Retailer 5£1,561 GBP
Retailer 19£1,587 GBP
Retailer 6£1,609 GBP
Retailer 7£1,614 GBP
Retailer 18£1,683 GBP
Retailer 17£1,793 GBP
Retailer 2£1,885 GBP
Retailer 14£2,586 GBP
NZ Jewellers£3,558 GBP

30 data points across 19 retailers

21 retailers£1,168 GBP to £2,586 GBP

Retailer 1
-
£1,100 GBP
Price last confirmed 8 days ago
A
Retailer 2
-
£1,168 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,304 GBP
View
A
Retailer 4
-
£1,318 GBP
View
Retailer 5
-
£1,420 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£1,459 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
£1,459 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,461 GBP
View
B+
Retailer 9
-
£1,509 GBP
View
Retailer 10
-
£1,526 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
£1,561 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£1,587 GBP
View
Retailer 13
-
£1,609 GBP
View
Price last confirmed 8 days ago
Retailer 14
-
£1,614 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£1,683 GBP
View
Retailer 16
-
£1,733 GBP
View
Price last confirmed 62 days ago
B+
Retailer 17
-
£1,793 GBP
View
B+
Retailer 18
-
£1,885 GBP
View
Retailer 19
-
£1,931 GBP
View
Price last confirmed 33 days ago
B
Retailer 20
-
£2,586 GBP
View
Most Expensive
NZ Jewellers
287d77ea-9309-4e32-a0e6-4b4f333552c4 · Oct 30
£3,558 GBP
$4,763 USD
View
Price last confirmed 7 days ago
20 more retailers have this diamond
Prices start from £1,168 GBPSave up to £1,418 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
£1,168 GBP