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Radiant|Natural|GIA

0.50ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 1428519795

Certificate GIA 1428519795

Diamond specifications and retailer prices

From £459 GBP
As of November 4, 2026
Save £1,266 GBP (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,725 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.5ct natural radiant diamond

This 0.5ct natural radiant sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1428519795. Listed at 18 retailers as of November 3, 2026, with prices from £459 to £1,725, a £1,266 spread on the same certified stone. NZ Jewellers lists it at £1,725. 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

0.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428519795
Dimensions5.01 × 3.92 × 2.73 mm
L/W Ratio1.28
Key to symbols
Indented Natural, Cloud
Top View
5.01 mm3.92 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428519795
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 69.7%

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 4
Current: £1,725 GBP|Low: £315 GBP|High: £1,725 GBP|Avg: £698 GBP
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
November 3, 2026
Retailer 8£459 GBP
Retailer 9£490 GBP
Retailer 7£493 GBP
Retailer 4£507 GBP
Retailer 17£550 GBP
Retailer 18£550 GBP
Retailer 16£572 GBP
Retailer 5£633 GBP
Retailer 3£635 GBP
Retailer 10£648 GBP
Retailer 12£660 GBP
Retailer 2£674 GBP
Retailer 6£680 GBP
Retailer 15£689 GBP
Retailer 11£777 GBP
Retailer 14£849 GBP
Retailer 13£1,007 GBP
NZ Jewellers£1,725 GBP

27 data points across 18 retailers

18 retailers£459 GBP to £1,725 GBP

A
Cheapest Retailer
-
£459 GBP
A
Retailer 2
-
£493 GBP
View
Retailer 3
-
£550 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£550 GBP
View
Retailer 5
-
£571 GBP
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£572 GBP
View
B+
Retailer 7
-
£633 GBP
View
B+
Retailer 8
-
£635 GBP
View
B+
Retailer 9
-
£648 GBP
View
B+
Retailer 10
-
£660 GBP
View
B+
Retailer 11
-
£674 GBP
View
B
Retailer 12
-
£680 GBP
View
B+
Retailer 13
-
£689 GBP
View
B
Retailer 14
-
£752 GBP
View
B+
Retailer 15
-
£777 GBP
View
Retailer 16
-
£849 GBP
View
Price last confirmed 8 days ago
B
Retailer 17
-
£1,007 GBP
View
Most Expensive
B
NZ Jewellers
31cb2d8d-b0a1-4357-8128-729f54310a37 · Nov 3
£1,725 GBP
$2,309 USD
View
17 more retailers have this diamond
Prices start from £459 GBPSave up to £1,266 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
0.50ct Radiant
£459 GBP