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Round|Natural|GIA

1.50ct H I1 Round Natural Diamond

EX • H/I1 • GIA 1525916699

Certificate GIA 1525916699

Diamond specifications and retailer prices

From £2,751 GBP
HK$28,800 HKD
As of October 31, 2026
Save £3,653 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,404 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 H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1525916699. Listed at 11 retailers as of October 30, 2026, with prices from £2,751 to £6,404, a £3,653 spread on the same certified stone. NZ Jewellers lists it at £6,404. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1525916699
Dimensions7.27 × 7.24 × 4.56 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Girdle conditionMedium to Slightly Thick
Cert comments
Additional twinning wisps additional clouds pinpoints and surface graining are not shown.
Top View
7.27 mm7.24 mm1.50 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1525916699
Side View
Table 57.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 31
Current: £6,404 GBP|Low: £2,732 GBP|High: £6,404 GBP|Avg: £3,682 GBP|+1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2£2,751 GBP
Retailer 9£2,858 GBP
Retailer 3£2,931 GBP
Retailer 5£3,330 GBP
Retailer 6£3,330 GBP
Retailer 8£3,330 GBP
Retailer 11£3,648 GBP
Retailer 7£3,843 GBP
Retailer 10£3,985 GBP
Retailer 4£4,160 GBP
NZ Jewellers£6,404 GBP

24 data points across 11 retailers

11 retailers£2,751 GBP to £6,404 GBP

A
Cheapest Retailer
-
£2,751 GBP
HK$28,800 HKD
Retailer 2
-
£2,858 GBP
$3,830 USD
View
Price last confirmed 11 days ago
B+
Retailer 3
-
£2,931 GBP
$3,927 USD
View
B+
Retailer 4
-
£3,330 GBP
$4,462 USD
View
B+
Retailer 5
-
£3,330 GBP
$4,462 USD
View
B+
Retailer 6
-
£3,330 GBP
$4,462 USD
View
B+
Retailer 7
-
£3,648 GBP
$4,888 USD
View
B
Retailer 8
-
£3,843 GBP
$5,149 USD
View
B
Retailer 9
-
£3,985 GBP
$5,340 USD
View
B
Retailer 10
-
£4,160 GBP
€5,309 EUR
View
Most Expensive
B
NZ Jewellers
79222d94-72cc-488e-9dcb-094cc61f0401 · Oct 30
£6,404 GBP
$8,581 USD
View
10 more retailers have this diamond
Prices start from £2,751 GBPSave up to £3,653 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
£2,751 GBP