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Oval|Natural|GIA

1.50ct I SI2 Oval Natural Diamond

ID • I/SI2 • GIA 3535676860

Certificate GIA 3535676860

Diamond specifications and retailer prices

From £2,199 GBP
As of November 6, 2026
Save £2,835 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,068 GBP at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535676860. Listed at 20 retailers as of November 5, 2026, with a 129% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3535676860
Dimensions9.21 × 6.50 × 4.11 mm
L/W Ratio1.42
Top View
9.21 mm6.50 mm1.50 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3535676860
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

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: £5,035 GBP|Low: £2,199 GBP|High: £5,068 GBP|Avg: £3,126 GBP|-0.7%
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 6£2,199 GBP
Retailer 2£2,327 GBP
Retailer 15£2,615 GBP
Retailer 9£2,685 GBP
Retailer 11£2,777 GBP
Retailer 13£2,796 GBP
Retailer 10£2,803 GBP
Retailer 16£2,890 GBP
Retailer 8£2,909 GBP
Retailer 14£2,926 GBP
Retailer 7£2,999 GBP
Retailer 3£3,001 GBP
Retailer 4£3,041 GBP
Retailer 5£3,334 GBP
Retailer 12£3,364 GBP
Retailer 17£4,832 GBP
NZ Jewellers£5,035 GBP

22 data points across 17 retailers

20 retailers£2,199 GBP to £5,035 GBP

A
Cheapest Retailer
-
£2,199 GBP
A
Retailer 2
-
£2,327 GBP
View
A
Retailer 3
-
£2,615 GBP
View
A
Retailer 4
-
£2,629 GBP
View
A
Retailer 5
-
£2,685 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,777 GBP
View
A
Retailer 7
-
£2,796 GBP
View
A
Retailer 8
-
£2,803 GBP
View
A
Retailer 9
-
£2,890 GBP
View
Retailer 10
-
£2,909 GBP
View
Price last confirmed 8 days ago
A
Retailer 11
-
£2,917 GBP
View
A
Retailer 12
-
£2,926 GBP
View
A
Retailer 13
-
£2,999 GBP
View
A
Retailer 14
-
£3,001 GBP
View
A
Retailer 15
-
£3,041 GBP
View
A
Retailer 16
-
£3,334 GBP
View
A
Retailer 17
-
£3,364 GBP
View
B+
Retailer 18
-
£4,832 GBP
View
B+
Retailer 19
-
£5,035 GBP
View
Most Expensive
NZ Jewellers
5a3c6948-4792-4bd2-bcc8-c1c3c6f8dba6 · Oct 17
£5,068 GBP
$6,784 USD
View
Price last confirmed 20 days ago
19 more retailers have this diamond
Prices start from £2,199 GBPSave up to £2,835 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
£2,199 GBP