Oval|Natural|GIA

1.50ct G SI1 Oval Natural Diamond

VG • G/SI1 • GIA 3565506820

Certificate GIA 3565506820

Diamond specifications and retailer prices

From £4,375 GBP
HK$45,800 HKD
As of November 1, 2026
Save £3,910 GBP (47%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £9,707 GBP at NZ Jewellers · As of October 23, 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 G 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 3565506820. Listed at 20 retailers as of November 1, 2026, with a 89% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565506820
Dimensions8.52 × 6.21 × 4.10 mm
L/W Ratio1.37
Girdle conditionFaceted
Top View
8.52 mm6.21 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565506820
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.9%

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: £9,707 GBP|Low: £4,175 GBP|High: £10,178 GBP|Avg: £5,767 GBP|-4.6%
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
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 3£4,375 GBP
Retailer 9£4,400 GBP
Retailer 20£4,604 GBP
Retailer 7£4,630 GBP
Retailer 16£4,655 GBP
Retailer 8£4,739 GBP
Retailer 15£4,765 GBP
Retailer 2£4,830 GBP
Retailer 4£4,853 GBP
Retailer 19£4,971 GBP
Retailer 17£5,105 GBP
Retailer 6£5,145 GBP
Retailer 11£5,457 GBP
Retailer 14£5,602 GBP
Retailer 12£5,651 GBP
Retailer 10£6,050 GBP
Retailer 5£6,497 GBP
Retailer 18£7,303 GBP
Retailer 13£8,285 GBP
NZ Jewellers£9,707 GBP

16 data points across 20 retailers

20 retailers£4,375 GBP to £8,285 GBP

A
Cheapest Retailer
-
£4,375 GBP
HK$45,800 HKD
A
Retailer 2
-
£4,400 GBP
$5,895 USD
View
A
Retailer 3
-
£4,604 GBP
$6,169 USD
View
B+
Retailer 4
-
£4,630 GBP
$6,204 USD
View
A
Retailer 5
-
£4,655 GBP
$6,237 USD
View
A
Retailer 6
-
£4,739 GBP
$6,350 USD
View
A
Retailer 7
-
£4,765 GBP
$6,385 USD
View
B+
Retailer 8
-
£4,830 GBP
€6,163 EUR
View
B+
Retailer 9
-
£4,853 GBP
$6,502 USD
View
B+
Retailer 10
-
£4,971 GBP
$6,661 USD
View
Final sale: no returns
B+
Retailer 11
-
£5,105 GBP
$6,840 USD
View
B+
Retailer 12
-
£5,145 GBP
View
B+
Retailer 13
-
£5,457 GBP
$7,312 USD
View
B+
Retailer 14
-
£5,602 GBP
View
Retailer 15
-
£5,651 GBP
A$11,649 AUD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
£6,050 GBP
$8,106 USD
View
B+
Retailer 17
-
£6,497 GBP
€8,291 EUR
View
B
Retailer 18
-
£7,303 GBP
ZAR 158,091 ZAR
View
B
Retailer 19
-
£8,285 GBP
View
Most Expensive
NZ Jewellers
860e8ebb-2bad-495e-8a16-0096f1160fd9 · Oct 23
£9,707 GBP
$13,006 USD
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from £4,375 GBPSave up to £3,910 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
£4,375 GBP