Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 6552546023

Certificate GIA 6552546023

Diamond specifications and retailer prices

From £1,291 GBP
As of November 6, 2026
Save £2,344 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,774 GBP at NZ Jewellers · As of October 14, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552546023. Listed at 22 retailers as of November 5, 2026, with a 182% 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552546023
Dimensions8.90 × 6.13 × 4.09 mm
L/W Ratio1.45
Top View
8.90 mm6.13 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552546023
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 66.6%

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 6
Current: £3,635 GBP|Low: £1,291 GBP|High: £3,912 GBP|Avg: £2,051 GBP|-7.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 4£1,291 GBP
Retailer 16£1,571 GBP
Retailer 8£1,632 GBP
Retailer 2£1,687 GBP
Retailer 9£1,710 GBP
Retailer 14£1,739 GBP
Retailer 12£1,797 GBP
Retailer 7£1,805 GBP
Retailer 3£1,819 GBP
Retailer 11£1,843 GBP
Retailer 15£1,889 GBP
Retailer 18£1,945 GBP
Retailer 10£1,958 GBP
Retailer 5£2,007 GBP
Retailer 13£2,123 GBP
Retailer 6£2,253 GBP
Retailer 17£3,038 GBP
NZ Jewellers£3,635 GBP

26 data points across 18 retailers

22 retailers£1,291 GBP to £3,635 GBP

A
Cheapest Retailer
-
£1,291 GBP
B+
Retailer 2
-
£1,571 GBP
View
B+
Retailer 3
-
£1,632 GBP
View
B+
Retailer 4
-
£1,687 GBP
View
B+
Retailer 5
-
£1,710 GBP
View
B+
Retailer 6
-
£1,739 GBP
View
B+
Retailer 7
-
£1,797 GBP
View
Retailer 8
-
£1,805 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£1,805 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£1,805 GBP
View
Price last confirmed 23 days ago
B+
Retailer 11
-
£1,819 GBP
View
B+
Retailer 12
-
£1,843 GBP
View
B+
Retailer 13
-
£1,889 GBP
View
B+
Retailer 14
-
£1,945 GBP
View
B+
Retailer 15
-
£1,958 GBP
View
B+
Retailer 16
-
£2,007 GBP
View
B+
Retailer 17
-
£2,123 GBP
View
Retailer 18
-
£2,235 GBP
View
Price last confirmed 66 days ago
B+
Retailer 19
-
£2,253 GBP
View
B+
Retailer 20
-
£3,038 GBP
View
B
Retailer 21
-
£3,635 GBP
View
Most Expensive
NZ Jewellers
1739e216-a904-4863-8b34-1c9e9f1b3e54 · Oct 14
£3,774 GBP
$5,051 USD
View
Price last confirmed 23 days ago
21 more retailers have this diamond
Prices start from £1,291 GBPSave up to £2,344 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 Oval
£1,291 GBP