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Round|Natural|GIA

1.50ct I I1 Round Natural Diamond

EX • I/I1 • GIA 1423644081

Certificate GIA 1423644081

Diamond specifications and retailer prices

From £2,875 GBP
HK$30,100 HKD
As of November 1, 2026
Save £3,647 GBP (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,522 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 I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1423644081. Listed at 12 retailers as of October 30, 2026, with prices from £2,875 to £6,522, a £3,647 spread on the same certified stone. NZ Jewellers lists it at £6,522. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
I
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1423644081
Dimensions7.31 × 7.21 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
7.31 mm7.21 mm1.50 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1423644081
Side View
Table 59.0%Crown 35.5°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.9%

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 1
Current: £6,522 GBP|Low: £2,847 GBP|High: £6,627 GBP|Avg: £4,024 GBP|-1.6%
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
November 1, 2026
Retailer 8£2,875 GBP
Retailer 13£2,941 GBP
Retailer 11£3,015 GBP
Retailer 6£3,130 GBP
Retailer 4£3,533 GBP
Retailer 12£3,533 GBP
Retailer 15£3,533 GBP
Retailer 9£3,963 GBP
Retailer 14£3,963 GBP
Retailer 3£4,076 GBP
Retailer 10£4,097 GBP
Retailer 2£4,394 GBP
Retailer 5£4,715 GBP
Retailer 7£5,615 GBP
NZ Jewellers£6,522 GBP

23 data points across 15 retailers

12 retailers£2,875 GBP to £6,522 GBP

B+
Cheapest Retailer
-
£2,875 GBP
HK$30,100 HKD
B+
Retailer 2
-
£2,941 GBP
$3,941 USD
View
B+
Retailer 3
-
£3,015 GBP
$4,040 USD
View
B+
Retailer 4
-
£3,533 GBP
$4,734 USD
View
B+
Retailer 5
-
£3,533 GBP
$4,734 USD
View
B+
Retailer 6
-
£3,533 GBP
$4,734 USD
View
B
Retailer 7
-
£3,963 GBP
$5,310 USD
View
B
Retailer 8
-
£3,963 GBP
$5,310 USD
View
B
Retailer 9
-
£4,076 GBP
$5,462 USD
View
B
Retailer 10
-
£4,097 GBP
$5,490 USD
View
B
Retailer 11
-
£4,394 GBP
€5,607 EUR
View
Most Expensive
C
NZ Jewellers
135e1e03-72ff-46f9-838e-96c2cde40d0b · Oct 30
£6,522 GBP
$8,739 USD
View
11 more retailers have this diamond
Prices start from £2,875 GBPSave up to £3,647 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 Round
£2,875 GBP