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Round|Natural|GIA

1.50ct G I1 Round Natural Diamond

EX • G/I1 • GIA 2427907486

Certificate GIA 2427907486

Diamond specifications and retailer prices

From £2,914 GBP
HK$30,500 HKD
As of November 1, 2026
Save £3,715 GBP (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,629 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 2427907486. Listed at 12 retailers as of October 30, 2026, with prices from £2,914 to £6,629, a £3,715 spread on the same certified stone. NZ Jewellers lists it at £6,629. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2427907486
Dimensions7.31 × 7.27 × 4.57 mm
L/W Ratio1.01
Top View
7.31 mm7.27 mm1.50 ctG / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2427907486
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.7%

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: £6,629 GBP|Low: £2,885 GBP|High: £6,966 GBP|Avg: £4,154 GBP|-4.8%
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 1, 2026
Retailer 10£2,914 GBP
Retailer 14£2,971 GBP
Retailer 12£3,064 GBP
Retailer 6£3,291 GBP
Retailer 3£3,591 GBP
Retailer 13£3,591 GBP
Retailer 16£3,591 GBP
Retailer 8£3,979 GBP
Retailer 9£4,026 GBP
Retailer 4£4,030 GBP
Retailer 15£4,030 GBP
Retailer 17£4,143 GBP
Retailer 11£4,165 GBP
Retailer 2£4,466 GBP
Retailer 5£4,956 GBP
Retailer 7£5,877 GBP
NZ Jewellers£6,629 GBP

23 data points across 17 retailers

12 retailers£2,914 GBP to £6,629 GBP

A
Cheapest Retailer
-
£2,914 GBP
HK$30,500 HKD
A
Retailer 2
-
£2,971 GBP
$3,981 USD
View
A
Retailer 3
-
£3,064 GBP
$4,105 USD
View
B+
Retailer 4
-
£3,591 GBP
$4,811 USD
View
B+
Retailer 5
-
£3,591 GBP
$4,811 USD
View
B+
Retailer 6
-
£3,591 GBP
$4,811 USD
View
B+
Retailer 7
-
£4,030 GBP
$5,400 USD
View
B+
Retailer 8
-
£4,030 GBP
$5,400 USD
View
B+
Retailer 9
-
£4,143 GBP
$5,551 USD
View
B+
Retailer 10
-
£4,165 GBP
$5,580 USD
View
B
Retailer 11
-
£4,466 GBP
€5,699 EUR
View
Most Expensive
B
NZ Jewellers
1d3e8432-00ac-42ff-a145-943cefc022ae · Oct 30
£6,629 GBP
$8,882 USD
View
11 more retailers have this diamond
Prices start from £2,914 GBPSave up to £3,715 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 Round
£2,914 GBP