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Round|Natural|GIA

1.50ct K I1 Round Natural Diamond

EX • K/I1 • GIA 7518553388

Certificate GIA 7518553388

Diamond specifications and retailer prices

From £2,339 GBP
As of November 6, 2026
Save £1,071 GBP (31%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,292 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 7518553388. Listed at 10 retailers as of November 5, 2026, with a 46% 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
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7518553388
Dimensions7.25 × 7.31 × 4.58 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Indented Natural, Needle
Top View
7.25 mm7.31 mm1.50 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7518553388
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.9%

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 6
Current: £3,410 GBP|Low: £2,320 GBP|High: £3,615 GBP|Avg: £2,929 GBP|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3£2,339 GBP
Retailer 2£2,452 GBP
Retailer 7£2,693 GBP
Retailer 5£2,849 GBP
Retailer 4£3,037 GBP
Retailer 6£3,037 GBP
Retailer 1£3,410 GBP
Retailer 8£3,615 GBP

38 data points across 8 retailers

10 retailers£2,339 GBP to £3,410 GBP

B+
Cheapest Retailer
-
£2,339 GBP
B+
Retailer 2
-
£2,452 GBP
View
B+
Retailer 3
-
£2,849 GBP
View
Retailer 4
-
£3,037 GBP
View
Price last confirmed 39 days ago
Retailer 5
-
£3,037 GBP
View
Price last confirmed 17 days ago
Retailer 6
-
£3,037 GBP
View
Price last confirmed 38 days ago
Retailer 7
-
£3,037 GBP
View
Price last confirmed 21 days ago
B
Retailer 8
-
£3,410 GBP
View
Retailer 9
-
£3,505 GBP
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
f1ecd3f5-fbce-43c2-9bfc-8d72cadcc38f · Sep 28
£5,292 GBP
$7,123 USD
View
Price last confirmed 39 days ago
9 more retailers have this diamond
Prices start from £2,339 GBPSave up to £1,071 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 Round
£2,339 GBP