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Radiant|Natural|GIA

1.50ct F SI2 Radiant Natural Diamond

EX • F/SI2 • GIA 6461911079

Certificate GIA 6461911079

Diamond specifications and retailer prices

From £5,876 GBP
$7,873 USD
As of October 31, 2026
Save £2,664 GBP (31%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £8,540 GBP at Riddles Jewelry · As of October 31, 2026
View at Riddles Jewelry

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6461911079. Listed at 12 retailers as of October 31, 2026, with prices from £5,876 to £8,540, a £2,664 spread on the same certified stone. Riddles Jewelry lists it at £8,540. 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

1.50
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6461911079
Dimensions7.36 × 5.74 × 3.95 mm
L/W Ratio1.28
Top View
7.36 mm5.74 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6461911079
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £8,009 GBP|Low: £5,806 GBP|High: £8,009 GBP|Avg: £6,927 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£5,876 GBP
Retailer 4£6,418 GBP
Retailer 3£6,444 GBP
Retailer 2£7,818 GBP
Retailer 1£8,009 GBP

43 data points across 5 retailers

12 retailers£5,876 GBP to £8,540 GBP

B+
Cheapest Retailer
-
£5,876 GBP
$7,873 USD
B+
Retailer 2
-
£6,171 GBP
$8,268 USD
View
B+
Retailer 3
-
£6,250 GBP
A$12,884 AUD
View
B+
Retailer 4
-
£6,418 GBP
$8,600 USD
View
Final sale: no returns
B
Retailer 5
-
£6,444 GBP
$8,634 USD
View
B
Retailer 6
-
£6,469 GBP
CA$12,039 CAD
View
B
Retailer 7
-
£7,425 GBP
$9,949 USD
View
B
Retailer 8
-
£7,690 GBP
$10,304 USD
View
B
Retailer 9
-
£7,818 GBP
View
B
Retailer 10
-
£8,009 GBP
€10,220 EUR
View
B
Retailer 11
-
£8,109 GBP
$10,866 USD
View
Most Expensive
B
Riddles Jewelry
1769434098 · Oct 31
£8,540 GBP
$11,442 USD
View
11 more retailers have this diamond
Prices start from £5,876 GBPSave up to £2,664 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+
1.50ct Radiant
£5,876 GBP