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Oval|Natural|GIA

1.50ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 5242028140

Certificate GIA 5242028140

Diamond specifications and retailer prices

From £1,634 GBP
HK$17,100 HKD
As of October 31, 2026
Save £2,988 GBP (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,622 GBP at NZ Jewellers · As of October 30, 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 J 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 5242028140. Listed at 10 retailers as of October 30, 2026, with prices from £1,634 to £4,622, a £2,988 spread on the same certified stone. NZ Jewellers lists it at £4,622. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.3°
OriginNatural
Grading LabGIA
CertificateGIA 5242028140
Dimensions8.81 × 6.29 × 4.05 mm
L/W Ratio1.40
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
8.81 mm6.29 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242028140
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 36.3°Culet: NoneDepth 64.3%

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: Oct 31
Current: £4,622 GBP|Low: £1,614 GBP|High: £4,622 GBP|Avg: £2,728 GBP|+9.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£1,634 GBP
Retailer 2£2,034 GBP
Retailer 7£2,264 GBP
Retailer 8£2,322 GBP
Retailer 6£2,350 GBP
Retailer 10£2,439 GBP
Retailer 4£2,645 GBP
Retailer 9£3,511 GBP
Retailer 5£3,806 GBP
NZ Jewellers£4,622 GBP

24 data points across 10 retailers

10 retailers£1,634 GBP to £4,622 GBP

A
Cheapest Retailer
-
£1,634 GBP
HK$17,100 HKD
A
Retailer 2
-
£2,034 GBP
$2,726 USD
View
A
Retailer 3
-
£2,264 GBP
$3,033 USD
View
A
Retailer 4
-
£2,322 GBP
SGD 4,205 SGD
View
A
Retailer 5
-
£2,350 GBP
$3,149 USD
View
A
Retailer 6
-
£2,439 GBP
A$5,028 AUD
View
A
Retailer 7
-
£2,645 GBP
€3,375 EUR
View
Retailer 8
-
£3,511 GBP
€4,480 EUR
View
Price last confirmed 10 days ago
B+
Retailer 9
-
£3,806 GBP
View
Most Expensive
B
NZ Jewellers
e69c17f0-9708-420a-b0ca-a29294a87730 · Oct 30
£4,622 GBP
$6,193 USD
View
9 more retailers have this diamond
Prices start from £1,634 GBPSave up to £2,988 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
£1,634 GBP