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Radiant|Natural|GIA

1.50ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 1559632964

Certificate GIA 1559632964

Diamond specifications and retailer prices

From £4,625 GBP
$6,206 USD
As of October 29, 2026
Save £964 GBP (17%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £10,198 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559632964. Listed at 9 retailers as of October 29, 2026, with a relatively tight 21% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.50
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559632964
Dimensions7.56 × 5.81 × 3.99 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Feather, Cloud, Needle, Natural
Top View
7.56 mm5.81 mm1.50 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559632964
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

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: Oct 29
Current: £6,252 GBP|Low: £4,024 GBP|High: £8,509 GBP|Avg: £5,530 GBP
Retailer 1
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
Retailer 20
October 3, 2026
Retailer 18£4,024 GBP
Retailer 16£4,603 GBP
Retailer 15£4,625 GBP
Retailer 6£4,727 GBP
Retailer 7£4,818 GBP
Retailer 10£4,889 GBP
Retailer 19£5,099 GBP
Retailer 9£5,105 GBP
Retailer 8£5,430 GBP
Retailer 3£5,579 GBP
Retailer 20£5,589 GBP
Retailer 4£5,634 GBP
Retailer 13£5,728 GBP
Retailer 12£5,759 GBP
Retailer 14£5,788 GBP
Retailer 2£6,153 GBP
Retailer 11£6,158 GBP
Retailer 1£6,252 GBP
Retailer 5£7,324 GBP
Retailer 17£8,498 GBP

6 data points across 20 retailers

9 retailers£4,625 GBP to £5,589 GBP

A
Cheapest Retailer
-
£4,625 GBP
$6,206 USD
B+
Retailer 2
-
£4,741 GBP
A$9,787 AUD
View
Retailer 3
-
£5,524 GBP
$7,413 USD
View
Price last confirmed 41 days ago
Retailer 4
-
£5,579 GBP
$7,487 USD
View
Price last confirmed 41 days ago
B+
Retailer 5
-
£5,589 GBP
A$11,538 AUD
View
Retailer 6
-
£5,634 GBP
$7,560 USD
View
Price last confirmed 40 days ago
Retailer 7
-
£5,788 GBP
A$11,949 AUD
View
Price last confirmed 39 days ago
Retailer 8
-
£6,374 GBP
$8,553 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
691dfdeb-838f-424e-9b04-4f1c121e8448 · Sep 20
£10,198 GBP
$13,685 USD
View
Price last confirmed 42 days ago
8 more retailers have this diamond
Prices start from £4,625 GBPSave up to £964 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
1.50ct Radiant
£4,625 GBP