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Round|Natural|GIA

1.50ct M I1 Round Natural Diamond

EX • M/I1 • GIA 7421991733

Certificate GIA 7421991733

Diamond specifications and retailer prices

From £1,153 GBP
As of November 5, 2026
Save £2,005 GBP (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,158 GBP at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 7421991733. Listed at 8 retailers as of November 5, 2026, with prices from £1,153 to £3,158, a £2,005 spread on the same certified stone. NZ Jewellers lists it at £3,158. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
M
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7421991733
Dimensions7.25 × 7.33 × 4.59 mm
L/W Ratio1.01
Top View
7.25 mm7.33 mm1.50 ctM / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7421991733
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.0%

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 5
Current: £3,158 GBP|Low: £1,153 GBP|High: £3,158 GBP|Avg: £1,709 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3£1,153 GBP
Retailer 7£1,364 GBP
Retailer 5£1,510 GBP
Retailer 6£1,510 GBP
Retailer 9£1,531 GBP
Retailer 4£1,580 GBP
Retailer 8£1,743 GBP
Retailer 2£2,047 GBP
NZ Jewellers£3,158 GBP

43 data points across 9 retailers

8 retailers£1,153 GBP to £3,158 GBP

A
Cheapest Retailer
-
£1,153 GBP
B+
Retailer 2
-
£1,364 GBP
View
Retailer 3
-
£1,510 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£1,510 GBP
View
B+
Retailer 5
-
£1,580 GBP
View
B+
Retailer 6
-
£1,743 GBP
View
B+
Retailer 7
-
£2,047 GBP
View
Most Expensive
C
NZ Jewellers
1f0babb5-ef03-4e5e-a188-de540dcce113 · Nov 5
£3,158 GBP
$4,250 USD
View
7 more retailers have this diamond
Prices start from £1,153 GBPSave up to £2,005 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
£1,153 GBP