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Oval|Natural|GIA

1.50ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 1538898295

Certificate GIA 1538898295

Diamond specifications and retailer prices

From £1,293 GBP
As of November 6, 2026
Save £1,914 GBP (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,207 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1538898295. Listed at 14 retailers as of November 5, 2026, with prices from £1,293 to £3,207, a £1,914 spread on the same certified stone. NZ Jewellers lists it at £3,207. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1538898295
Dimensions8.65 × 6.39 × 4.07 mm
L/W Ratio1.35
Top View
8.65 mm6.39 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538898295
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

How it works →
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 6
Current: £3,207 GBP|Low: £1,293 GBP|High: £3,290 GBP|Avg: £1,856 GBP|-1.7%
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
November 6, 2026
Retailer 2£1,293 GBP
Retailer 3£1,392 GBP
Retailer 14£1,412 GBP
Retailer 9£1,535 GBP
Retailer 4£1,561 GBP
Retailer 11£1,605 GBP
Retailer 12£1,637 GBP
Retailer 7£1,666 GBP
Retailer 5£1,766 GBP
Retailer 13£1,771 GBP
Retailer 8£1,872 GBP
Retailer 6£2,142 GBP
Retailer 10£2,681 GBP
NZ Jewellers£3,207 GBP

25 data points across 14 retailers

14 retailers£1,293 GBP to £3,207 GBP

A
Cheapest Retailer
-
£1,293 GBP
A
Retailer 2
-
£1,392 GBP
View
A
Retailer 3
-
£1,412 GBP
View
A
Retailer 4
-
£1,535 GBP
View
Retailer 5
-
£1,561 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£1,605 GBP
View
A
Retailer 7
-
£1,637 GBP
View
A
Retailer 8
-
£1,666 GBP
View
A
Retailer 9
-
£1,708 GBP
View
A
Retailer 10
-
£1,766 GBP
View
A
Retailer 11
-
£1,771 GBP
View
A
Retailer 12
-
£1,872 GBP
View
A
Retailer 13
-
£2,681 GBP
View
Most Expensive
B+
NZ Jewellers
f52cb208-bea6-48c9-ab83-04e8cc1e1fc5 · Nov 5
£3,207 GBP
$4,293 USD
View
13 more retailers have this diamond
Prices start from £1,293 GBPSave up to £1,914 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
£1,293 GBP