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Radiant|Natural|GIA

0.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 1437842598

Certificate GIA 1437842598

Diamond specifications and retailer prices

From £601 GBP
$805 USD
As of November 1, 2026
Save £719 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,319 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.5ct natural radiant diamond

This 0.5ct natural radiant sits in the half to three-quarter carat band, graded I 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 1437842598. Listed at 14 retailers as of October 29, 2026, with prices from £601 to £1,319, a £719 spread on the same certified stone. MOH London lists it at £1,319. 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

0.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1437842598
Dimensions5.19 × 4.04 × 2.73 mm
L/W Ratio1.28
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
5.19 mm4.04 mm0.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1437842598
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

Caratlytics Score

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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 1
Current: £1,319 GBP|Low: £601 GBP|High: £1,328 GBP|Avg: £903 GBP|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7£601 GBP
Retailer 9£649 GBP
Retailer 10£791 GBP
Retailer 11£791 GBP
Retailer 4£805 GBP
Retailer 12£821 GBP
Retailer 2£832 GBP
Retailer 5£926 GBP
Retailer 8£1,077 GBP
Retailer 6£1,106 GBP
Retailer 3£1,159 GBP
MOH London£1,319 GBP

43 data points across 12 retailers

14 retailers£601 GBP to £1,319 GBP

B
Cheapest Retailer
-
£601 GBP
$805 USD
B
Retailer 2
-
£644 GBP
$863 USD
View
B
Retailer 3
-
£649 GBP
$870 USD
View
B
Retailer 4
-
£657 GBP
$880 USD
View
B
Retailer 5
-
£791 GBP
$1,060 USD
View
B
Retailer 6
-
£791 GBP
$1,060 USD
View
B
Retailer 7
-
£805 GBP
$1,078 USD
View
B
Retailer 8
-
£821 GBP
$1,100 USD
View
B
Retailer 9
-
£832 GBP
View
B
Retailer 10
-
£926 GBP
€1,182 EUR
View
Retailer 11
-
£1,077 GBP
A$2,221 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£1,106 GBP
ZAR 23,943 ZAR
View
C
Retailer 13
-
£1,159 GBP
CA$2,156 CAD
View
Most Expensive
C
MOH London
9B3D0301F · Oct 29
£1,319 GBP
View
13 more retailers have this diamond
Prices start from £601 GBPSave up to £719 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
0.50ct Radiant
£601 GBP