Oval|Natural|GIA

1.50ct H SI1 Oval Natural Diamond

GD • H/SI1 • GIA 6462133889

Certificate GIA 6462133889

Diamond specifications and retailer prices

From £5,663 GBP
As of November 4, 2026
Save £4,990 GBP (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,653 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6462133889. Listed at 21 retailers as of November 4, 2026, with prices from £5,663 to £10,653, a £4,990 spread on the same certified stone. NZ Jewellers lists it at £10,653. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle37.6°
OriginNatural
Grading LabGIA
CertificateGIA 6462133889
Dimensions9.01 × 6.35 × 3.97 mm
L/W Ratio1.42
Top View
9.01 mm6.35 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6462133889
Side View
Table 56.0%CrownGirdle: STK-THKPavilion 37.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £6,876 GBP|Low: £5,327 GBP|High: £10,102 GBP|Avg: £7,533 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5£5,663 GBP
Retailer 8£6,392 GBP
Retailer 1£6,876 GBP
Retailer 10£6,924 GBP
Retailer 7£7,018 GBP
Retailer 9£7,031 GBP
Retailer 2£7,990 GBP
Retailer 6£8,052 GBP
Retailer 3£9,325 GBP
Retailer 4£9,956 GBP

46 data points across 10 retailers

21 retailers£5,663 GBP to £10,653 GBP

B+
Cheapest Retailer
-
£5,663 GBP
B
Retailer 2
-
£5,953 GBP
View
B
Retailer 3
-
£5,985 GBP
View
B
Retailer 4
-
£6,238 GBP
View
B
Retailer 5
-
£6,350 GBP
View
Retailer 6
-
£6,392 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£6,392 GBP
View
Final sale: no returns
B
Retailer 8
-
£6,445 GBP
View
B
Retailer 9
-
£6,876 GBP
View
B
Retailer 10
-
£6,924 GBP
View
Retailer 11
-
£7,018 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
£7,031 GBP
View
B
Retailer 13
-
£7,355 GBP
View
B
Retailer 14
-
£7,553 GBP
View
B
Retailer 15
-
£7,553 GBP
View
B
Retailer 16
-
£7,807 GBP
View
B
Retailer 17
-
£7,990 GBP
View
B
Retailer 18
-
£8,052 GBP
View
C
Retailer 19
-
£9,325 GBP
View
B
Retailer 20
-
£9,956 GBP
View
Most Expensive
C
NZ Jewellers
431043a4-ff58-4017-9775-d718115478ce · Nov 5
£10,653 GBP
$14,259 USD
View
20 more retailers have this diamond
Prices start from £5,663 GBPSave up to £4,990 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.

B+
1.50ct Oval
£5,663 GBP