Round|Natural|GIA

1.50ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2536983669

Certificate GIA 2536983669

Diamond specifications and retailer prices

From £1,493 GBP
As of November 6, 2026
Save £971 GBP (39%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £4,447 GBP at NZ Jewellers · As of September 10, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2536983669. Listed at 28 retailers as of November 5, 2026, with a 65% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2536983669
Dimensions7.33 × 7.29 × 4.54 mm
L/W Ratio1.01
Top View
7.33 mm7.29 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2536983669
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,206 GBP|Low: £1,493 GBP|High: £4,263 GBP|Avg: £2,354 GBP|-0.6%
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
November 6, 2026
Retailer 3£1,493 GBP
Retailer 16£1,661 GBP
Retailer 17£1,761 GBP
Retailer 15£1,791 GBP
Retailer 12£1,863 GBP
Retailer 6£1,980 GBP
Retailer 5£2,115 GBP
Retailer 2£2,163 GBP
Retailer 4£2,295 GBP
Retailer 14£2,332 GBP
Retailer 7£2,346 GBP
Retailer 11£2,412 GBP
Retailer 10£2,424 GBP
Retailer 13£2,464 GBP
Retailer 9£2,823 GBP
Retailer 8£3,089 GBP
NZ Jewellers£4,206 GBP

32 data points across 17 retailers

28 retailers£1,493 GBP to £2,464 GBP

A
Cheapest Retailer
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£1,493 GBP
A
Retailer 2
-
£1,661 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,761 GBP
View
A
Retailer 4
-
£1,791 GBP
View
B+
Retailer 5
-
£1,863 GBP
View
A
Retailer 6
-
£1,980 GBP
View
Retailer 7
-
£2,004 GBP
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£2,115 GBP
View
B+
Retailer 9
-
£2,163 GBP
View
Retailer 10
-
£2,295 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£2,332 GBP
View
Retailer 12
-
£2,346 GBP
View
Price last confirmed 15 days ago
B+
Retailer 13
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£2,412 GBP
View
B+
Retailer 14
-
£2,424 GBP
View
Retailer 15
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£2,447 GBP
View
Price last confirmed 27 days ago
Retailer 16
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£2,447 GBP
View
Price last confirmed 21 days ago
Retailer 17
-
£2,447 GBP
View
Price last confirmed 23 days ago
B+
Retailer 18
-
£2,464 GBP
View
Retailer 19
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£2,541 GBP
View
Price last confirmed 22 days ago
Retailer 20
-
£2,823 GBP
View
Price last confirmed 28 days ago
Retailer 21
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£2,823 GBP
View
Price last confirmed 24 days ago
Retailer 22
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£2,823 GBP
View
Price last confirmed 25 days ago
Retailer 23
-
£3,089 GBP
View
Price last confirmed 14 days ago
Retailer 24
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£4,206 GBP
View
Price last confirmed 14 days ago
Retailer 25
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£4,263 GBP
View
Price last confirmed 26 days ago
Retailer 26
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£4,263 GBP
View
Price last confirmed 28 days ago
Retailer 27
-
£4,263 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
4edcf810-007e-43b8-85b1-5dd3302ce608 · Sep 10
£4,447 GBP
$5,985 USD
View
Price last confirmed 56 days ago
27 more retailers have this diamond
Prices start from £1,493 GBPSave up to £971 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
£1,493 GBP