Radiant|Natural|GIA

0.50ct D SI1 Radiant Natural Diamond

GD • D/SI1 • GIA 2516460142

Certificate GIA 2516460142

Diamond specifications and retailer prices

From £486 GBP
As of November 5, 2026
Save £637 GBP (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,685 GBP at NZ Jewellers · As of September 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2516460142. Listed at 23 retailers as of November 1, 2026, with a 131% 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

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

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2516460142
Dimensions5.19 × 4.09 × 2.74 mm
L/W Ratio1.27
Top View
5.19 mm4.09 mm0.50 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2516460142
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £1,524 GBP|Low: £489 GBP|High: £1,621 GBP|Avg: £727 GBP|-6.0%
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
November 7, 2026
Retailer 9£489 GBP
Retailer 4£523 GBP
Retailer 6£561 GBP
Retailer 13£578 GBP
Retailer 3£584 GBP
Retailer 2£592 GBP
Retailer 12£609 GBP
Retailer 11£624 GBP
Retailer 7£709 GBP
Retailer 8£749 GBP
Retailer 5£808 GBP
Retailer 10£1,122 GBP
NZ Jewellers£1,524 GBP

35 data points across 13 retailers

23 retailers£486 GBP to £1,122 GBP

A
Cheapest Retailer
-
£486 GBP
A
Retailer 2
-
£489 GBP
View
Retailer 3
-
£490 GBP
View
Price last confirmed 43 days ago
A
Retailer 4
-
£504 GBP
View
Retailer 5
-
£523 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
£523 GBP
View
Price last confirmed 13 days ago
Retailer 7
-
£537 GBP
View
Price last confirmed 37 days ago
Retailer 8
-
£558 GBP
View
Price last confirmed 37 days ago
B+
Retailer 9
-
£561 GBP
View
Retailer 10
-
£566 GBP
View
Price last confirmed 44 days ago
B+
Retailer 11
-
£578 GBP
View
B+
Retailer 12
-
£584 GBP
View
B+
Retailer 13
-
£592 GBP
View
B+
Retailer 14
-
£609 GBP
View
Retailer 15
-
£620 GBP
View
Price last confirmed 39 days ago
B+
Retailer 16
-
£624 GBP
View
B
Retailer 17
-
£709 GBP
View
B+
Retailer 18
-
£749 GBP
View
Retailer 19
-
£808 GBP
View
Price last confirmed 33 days ago
B
Retailer 20
-
£1,122 GBP
View
Retailer 21
-
£1,524 GBP
View
Price last confirmed 11 days ago
Retailer 22
-
£1,537 GBP
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
439ceb85-2ace-4e22-a996-8a06620b2164 · Sep 29
£1,685 GBP
$2,256 USD
View
Price last confirmed 38 days ago
22 more retailers have this diamond
Prices start from £486 GBPSave up to £637 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
£486 GBP