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Round|Natural|GIA

1.50ct K I1 Round Natural Diamond

EX • K/I1 • GIA 2437367505

Certificate GIA 2437367505

Diamond specifications and retailer prices

From £1,932 GBP
As of November 4, 2026
Save £934 GBP (33%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,292 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2437367505. Listed at 8 retailers as of November 4, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2437367505
Dimensions7.32 × 7.26 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.32 mm7.26 mm1.50 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2437367505
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £2,866 GBP|Low: £1,932 GBP|High: £2,931 GBP|Avg: £2,320 GBP|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2£1,932 GBP
Retailer 7£1,999 GBP
Retailer 4£2,034 GBP
Retailer 3£2,232 GBP
Retailer 6£2,242 GBP
Retailer 1£2,866 GBP
Retailer 5£2,931 GBP

24 data points across 7 retailers

8 retailers£1,932 GBP to £2,866 GBP

A
Cheapest Retailer
-
£1,932 GBP
B+
Retailer 2
-
£1,999 GBP
View
Retailer 3
-
£2,232 GBP
View
Price last confirmed 36 days ago
B+
Retailer 4
-
£2,242 GBP
View
Retailer 5
-
£2,318 GBP
View
Price last confirmed 38 days ago
Retailer 6
-
£2,575 GBP
View
Price last confirmed 38 days ago
B+
Retailer 7
-
£2,866 GBP
View
Most Expensive
NZ Jewellers
425b9c5f-2297-49ad-95fe-a37ba72adacd · Sep 28
£4,292 GBP
$5,777 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from £1,932 GBPSave up to £934 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 Round
£1,932 GBP