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Radiant|Natural|GIA

1.50ct G SI2 Radiant Natural Diamond

GD • G/SI2 • GIA 6521112315

Certificate GIA 6521112315

Diamond specifications and retailer prices

From £4,545 GBP
$6,090 USD
As of November 1, 2026
Save £5,183 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £9,728 GBP at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521112315. Listed at 15 retailers as of October 30, 2026, with prices from £4,545 to £9,728, a £5,183 spread on the same certified stone. NZ Jewellers lists it at £9,728. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521112315
Dimensions7.39 × 5.75 × 3.91 mm
L/W Ratio1.29
Top View
7.39 mm5.75 mm1.50 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521112315
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

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: Nov 1
Current: £5,884 GBP|Low: £4,545 GBP|High: £8,204 GBP|Avg: £5,763 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£4,545 GBP
Retailer 8£4,571 GBP
Retailer 4£4,595 GBP
Retailer 6£4,904 GBP
Retailer 2£5,483 GBP
Retailer 1£5,884 GBP
Retailer 7£6,408 GBP
Retailer 9£6,934 GBP
Retailer 3£8,106 GBP

42 data points across 9 retailers

15 retailers£4,545 GBP to £9,728 GBP

B+
Cheapest Retailer
-
£4,545 GBP
$6,090 USD
B+
Retailer 2
-
£4,595 GBP
$6,157 USD
View
B+
Retailer 3
-
£4,831 GBP
CA$8,991 CAD
View
B+
Retailer 4
-
£4,864 GBP
$6,517 USD
View
B+
Retailer 5
-
£4,904 GBP
$6,571 USD
View
B+
Retailer 6
-
£5,269 GBP
$7,060 USD
View
B+
Retailer 7
-
£5,350 GBP
$7,169 USD
View
B+
Retailer 8
-
£5,483 GBP
View
B+
Retailer 9
-
£5,559 GBP
$7,449 USD
View
B
Retailer 10
-
£5,884 GBP
€7,509 EUR
View
B
Retailer 11
-
£6,080 GBP
$8,146 USD
View
B
Retailer 12
-
£6,275 GBP
$8,408 USD
View
Retailer 13
-
£6,408 GBP
$8,586 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£8,106 GBP
View
Most Expensive
C
NZ Jewellers
76fa6cb5-04ab-4bf2-9c0b-0c5f78bd844c · Oct 30
£9,728 GBP
$13,034 USD
View
14 more retailers have this diamond
Prices start from £4,545 GBPSave up to £5,183 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
£4,545 GBP