Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 2457221982

Certificate GIA 2457221982

Diamond specifications and retailer prices

From £2,092 GBP
As of November 4, 2026
Save £2,350 GBP (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,641 GBP at NZ Jewellers · As of September 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2457221982. Listed at 15 retailers as of November 4, 2026, with a 112% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2457221982
Dimensions6.94 × 5.77 × 3.96 mm
L/W Ratio1.20
Top View
6.94 mm5.77 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2457221982
Side View
Table 72.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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 4
Current: £2,756 GBP|Low: £2,092 GBP|High: £4,509 GBP|Avg: £2,857 GBP|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6£2,092 GBP
Retailer 7£2,134 GBP
Retailer 4£2,142 GBP
Retailer 9£2,338 GBP
Retailer 8£2,413 GBP
Retailer 1£2,756 GBP
Retailer 2£3,071 GBP
Retailer 3£3,251 GBP
Retailer 5£4,442 GBP

45 data points across 9 retailers

15 retailers£2,092 GBP to £4,442 GBP

A
Cheapest Retailer
-
£2,092 GBP
A
Retailer 2
-
£2,134 GBP
View
B+
Retailer 3
-
£2,142 GBP
View
B+
Retailer 4
-
£2,338 GBP
View
B+
Retailer 5
-
£2,409 GBP
View
Retailer 6
-
£2,413 GBP
View
Price last confirmed 37 days ago
B+
Retailer 7
-
£2,426 GBP
View
Retailer 8
-
£2,506 GBP
View
Price last confirmed 38 days ago
B+
Retailer 9
-
£2,756 GBP
View
Retailer 10
-
£2,784 GBP
View
Price last confirmed 39 days ago
Retailer 11
-
£3,018 GBP
View
Price last confirmed 15 days ago
B+
Retailer 12
-
£3,071 GBP
View
B+
Retailer 13
-
£3,251 GBP
View
B
Retailer 14
-
£4,442 GBP
View
Most Expensive
NZ Jewellers
cd4b2a51-ffbe-426e-9469-13044b3e8e67 · Sep 30
£4,641 GBP
$6,212 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £2,092 GBPSave up to £2,350 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
£2,092 GBP