Radiant|Natural|GIA

1.00ct F SI1 Radiant Natural Diamond

GD • F/SI1 • GIA 5553519132

Certificate GIA 5553519132

Diamond specifications and retailer prices

From £1,338 GBP
As of November 6, 2026
Save £1,612 GBP (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,492 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 F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5553519132. Listed at 20 retailers as of November 6, 2026, with a 120% 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553519132
Dimensions6.51 × 4.82 × 3.39 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.51 mm4.82 mm1.00 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553519132
Side View
Table 68.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.3%

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: £3,492 GBP|Low: £1,260 GBP|High: £3,515 GBP|Avg: £1,920 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 7, 2026
Retailer 3£1,260 GBP
Retailer 15£1,338 GBP
Retailer 7£1,464 GBP
Retailer 13£1,493 GBP
Retailer 16£1,509 GBP
Retailer 19£1,643 GBP
Retailer 8£1,671 GBP
Retailer 10£1,671 GBP
Retailer 14£1,696 GBP
Retailer 9£1,747 GBP
Retailer 4£1,774 GBP
Retailer 5£1,833 GBP
Retailer 6£1,913 GBP
Retailer 18£1,927 GBP
Retailer 17£2,052 GBP
Retailer 11£2,081 GBP
Retailer 12£2,158 GBP
Retailer 2£2,950 GBP
NZ Jewellers£3,492 GBP

32 data points across 19 retailers

20 retailers£1,338 GBP to £2,950 GBP

Retailer 1
-
£1,260 GBP
Price last confirmed 8 days ago
A
Retailer 2
-
£1,338 GBP
View
Final sale: no returns
Retailer 3
-
£1,464 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£1,493 GBP
View
B+
Retailer 5
-
£1,509 GBP
View
B+
Retailer 6
-
£1,643 GBP
View
Retailer 7
-
£1,671 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
£1,671 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£1,696 GBP
View
Retailer 10
-
£1,747 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
£1,774 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£1,833 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£1,913 GBP
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£1,927 GBP
View
Retailer 15
-
£1,979 GBP
View
Price last confirmed 62 days ago
B+
Retailer 16
-
£2,052 GBP
View
Retailer 17
-
£2,081 GBP
View
Price last confirmed 32 days ago
B
Retailer 18
-
£2,158 GBP
View
B
Retailer 19
-
£2,950 GBP
View
Most Expensive
NZ Jewellers
b8dc53d0-573c-42f6-9ee5-9fee6428cef5 · Oct 30
£3,492 GBP
$4,674 USD
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from £1,338 GBPSave up to £1,612 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
£1,338 GBP