Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 1557153385

Certificate GIA 1557153385

Diamond specifications and retailer prices

From £3,638 GBP
As of November 1, 2026
Save £3,490 GBP (49%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £8,114 GBP at NZ Jewellers · As of October 9, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1557153385. Listed at 23 retailers as of November 1, 2026, with a 96% 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.84°
Pavilion angle40.52°
OriginNatural
Grading LabGIA
CertificateGIA 1557153385
Dimensions8.77 × 6.34 × 4.09 mm
L/W Ratio1.38
Culet sizeNone
Top View
8.77 mm6.34 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557153385
Side View
Table 60.0%Crown 41.84°Girdle: MED-VTKPavilion 40.52°Culet: NoneDepth 64.5%

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 1
Current: £8,114 GBP|Low: £3,638 GBP|High: £8,114 GBP|Avg: £5,113 GBP
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
November 6, 2026
Retailer 15£3,638 GBP
Retailer 9£3,835 GBP
Retailer 5£4,058 GBP
Retailer 2£4,147 GBP
Retailer 4£4,395 GBP
Retailer 6£4,395 GBP
Retailer 3£4,474 GBP
Retailer 10£4,547 GBP
Retailer 12£4,608 GBP
Retailer 7£4,796 GBP
Retailer 14£4,995 GBP
Retailer 11£5,919 GBP
Retailer 8£7,031 GBP
Retailer 13£7,128 GBP
NZ Jewellers£8,114 GBP

29 data points across 15 retailers

23 retailers£3,638 GBP to £7,128 GBP

A
Cheapest Retailer
-
£3,638 GBP
A
Retailer 2
-
£3,721 GBP
View
B+
Retailer 3
-
£3,833 GBP
View
A
Retailer 4
-
£3,835 GBP
View
B+
Retailer 5
-
£3,883 GBP
View
B+
Retailer 6
-
£4,058 GBP
View
Final sale: no returns
B+
Retailer 7
-
£4,102 GBP
View
B+
Retailer 8
-
£4,147 GBP
View
B+
Retailer 9
-
£4,337 GBP
View
Retailer 10
-
£4,395 GBP
View
Price last confirmed 26 days ago
Retailer 11
-
£4,395 GBP
View
Price last confirmed 39 days ago
Retailer 12
-
£4,395 GBP
View
Price last confirmed 28 days ago
B+
Retailer 13
-
£4,474 GBP
View
B+
Retailer 14
-
£4,547 GBP
View
B+
Retailer 15
-
£4,608 GBP
View
B+
Retailer 16
-
£4,613 GBP
View
Retailer 17
-
£4,796 GBP
View
Price last confirmed 29 days ago
B+
Retailer 18
-
£4,995 GBP
View
Retailer 19
-
£5,071 GBP
View
Price last confirmed 29 days ago
B
Retailer 20
-
£5,919 GBP
View
B
Retailer 21
-
£7,031 GBP
View
B
Retailer 22
-
£7,128 GBP
View
Most Expensive
NZ Jewellers
80561aa5-a616-4ac9-85c2-34117f5856cb · Oct 9
£8,114 GBP
$10,861 USD
View
Price last confirmed 28 days ago
22 more retailers have this diamond
Prices start from £3,638 GBPSave up to £3,490 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
£3,638 GBP