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Radiant|Natural|GIA

1.50ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 7531645928

Certificate GIA 7531645928

Diamond specifications and retailer prices

From £1,626 GBP
As of November 6, 2026
Save £2,079 GBP (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,463 GBP at NZ Jewellers · As of October 17, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7531645928. Listed at 15 retailers as of November 4, 2026, with a 128% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7531645928
Dimensions7.52 × 5.76 × 3.94 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather, Cavity, Needle, Indented Natural, Natural
Top View
7.52 mm5.76 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7531645928
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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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: £2,244 GBP|Low: £1,626 GBP|High: £3,785 GBP|Avg: £2,273 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7£1,626 GBP
Retailer 2£1,733 GBP
Retailer 5£1,926 GBP
Retailer 8£2,226 GBP
Retailer 1£2,244 GBP
Retailer 3£2,266 GBP
Retailer 4£2,468 GBP
Retailer 6£3,705 GBP

34 data points across 8 retailers

15 retailers£1,626 GBP to £3,705 GBP

A
Cheapest Retailer
-
£1,626 GBP
A
Retailer 2
-
£1,733 GBP
View
A
Retailer 3
-
£1,926 GBP
View
A
Retailer 4
-
£2,046 GBP
View
Retailer 5
-
£2,134 GBP
View
Price last confirmed 22 days ago
Retailer 6
-
£2,134 GBP
View
Price last confirmed 20 days ago
A
Retailer 7
-
£2,170 GBP
View
Retailer 8
-
£2,217 GBP
View
Price last confirmed 22 days ago
A
Retailer 9
-
£2,226 GBP
View
A
Retailer 10
-
£2,244 GBP
View
A
Retailer 11
-
£2,266 GBP
View
Retailer 12
-
£2,463 GBP
View
Price last confirmed 19 days ago
A
Retailer 13
-
£2,468 GBP
View
B
Retailer 14
-
£3,705 GBP
View
Most Expensive
NZ Jewellers
89a0dc79-479f-4961-91dc-a03481122c15 · Oct 17
£4,463 GBP
$5,974 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from £1,626 GBPSave up to £2,079 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
£1,626 GBP