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Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 5456116744

Certificate GIA 5456116744

Diamond specifications and retailer prices

From £2,754 GBP
As of November 6, 2026
Save £3,573 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,327 GBP at NZ Jewellers · As of November 5, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5456116744. Listed at 21 retailers as of November 5, 2026, with prices from £2,754 to £6,327, a £3,573 spread on the same certified stone. NZ Jewellers lists it at £6,327. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5456116744
Dimensions9.23 × 6.24 × 3.72 mm
L/W Ratio1.48
Top View
9.23 mm6.24 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5456116744
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.5%

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: £3,670 GBP|Low: £2,754 GBP|High: £6,090 GBP|Avg: £3,873 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£2,754 GBP
Retailer 8£2,770 GBP
Retailer 7£3,280 GBP
Retailer 2£3,299 GBP
Retailer 10£3,347 GBP
Retailer 1£3,670 GBP
Retailer 3£3,725 GBP
Retailer 6£4,279 GBP
Retailer 4£4,616 GBP
Retailer 5£6,010 GBP

30 data points across 10 retailers

21 retailers£2,754 GBP to £6,327 GBP

B+
Cheapest Retailer
-
£2,754 GBP
A
Retailer 2
-
£2,770 GBP
View
B+
Retailer 3
-
£3,231 GBP
View
B+
Retailer 4
-
£3,280 GBP
View
B+
Retailer 5
-
£3,299 GBP
View
Retailer 6
-
£3,347 GBP
View
Price last confirmed 16 days ago
B+
Retailer 7
-
£3,471 GBP
View
Retailer 8
-
£3,506 GBP
View
Price last confirmed 11 days ago
B
Retailer 9
-
£3,556 GBP
View
B+
Retailer 10
-
£3,670 GBP
View
B+
Retailer 11
-
£3,725 GBP
View
Retailer 12
-
£3,783 GBP
View
Price last confirmed 8 days ago
B
Retailer 13
-
£3,783 GBP
View
B
Retailer 14
-
£3,783 GBP
View
B
Retailer 15
-
£3,896 GBP
View
B
Retailer 16
-
£4,279 GBP
View
B
Retailer 17
-
£4,365 GBP
View
B
Retailer 18
-
£4,616 GBP
View
C
Retailer 19
-
£5,789 GBP
View
B
Retailer 20
-
£6,010 GBP
View
Most Expensive
C
NZ Jewellers
b3781247-b151-431c-aa1a-d35c08a97cc7 · Nov 5
£6,327 GBP
$8,469 USD
View
20 more retailers have this diamond
Prices start from £2,754 GBPSave up to £3,573 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
£2,754 GBP