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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6532746804

Certificate GIA 6532746804

Diamond specifications and retailer prices

From £3,270 GBP
As of November 6, 2026
Save £4,185 GBP (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £7,455 GBP at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532746804. Listed at 7 retailers as of November 5, 2026, with prices from £3,270 to £7,455, a £4,185 spread on the same certified stone. NZ Jewellers lists it at £7,455. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
Pavilion angle55.91°
OriginNatural
Grading LabGIA
CertificateGIA 6532746804
Dimensions7.85 × 5.70 × 3.88 mm
L/W Ratio1.38
Top View
7.85 mm5.70 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6532746804
Side View
Table 72.0%CrownGirdle: Very ThickPavilion 55.91°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,455 GBP|Low: £3,242 GBP|High: £7,455 GBP|Avg: £4,859 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 3£3,270 GBP
Retailer 4£4,115 GBP
Retailer 8£4,164 GBP
Retailer 5£4,458 GBP
Retailer 6£4,458 GBP
Retailer 7£4,510 GBP
Retailer 2£6,549 GBP
NZ Jewellers£7,455 GBP

11 data points across 8 retailers

7 retailers£3,270 GBP to £7,455 GBP

A
Cheapest Retailer
-
£3,270 GBP
A
Retailer 2
-
£4,115 GBP
View
Final sale: no returns
Retailer 3
-
£4,164 GBP
View
Price last confirmed 24 days ago
A
Retailer 4
-
£4,458 GBP
View
A
Retailer 5
-
£4,458 GBP
View
B+
Retailer 6
-
£6,549 GBP
View
Most Expensive
B
NZ Jewellers
6ef6a822-650e-4267-966d-239a26cf87f9 · Nov 5
£7,455 GBP
$9,979 USD
View
6 more retailers have this diamond
Prices start from £3,270 GBPSave up to £4,185 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
£3,270 GBP