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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2477863296

Certificate GIA 2477863296

Diamond specifications and retailer prices

From £2,823 GBP
As of November 4, 2026
Save £1,541 GBP (35%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,760 GBP at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2477863296. Listed at 16 retailers as of November 4, 2026, with a 55% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2477863296
Dimensions7.29 × 7.25 × 4.61 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.29 mm7.25 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2477863296
Side View
Table 57.0%Crown 34.5°Girdle: ThickPavilion 41.6°Culet: NoneDepth 63.4%

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 4
Current: £4,364 GBP|Low: £2,909 GBP|High: £5,328 GBP|Avg: £3,815 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5£2,909 GBP
Retailer 6£2,946 GBP
Retailer 7£3,306 GBP
Retailer 2£3,328 GBP
Retailer 3£3,712 GBP
Retailer 1£4,364 GBP
Retailer 4£5,293 GBP

40 data points across 7 retailers

16 retailers£2,823 GBP to £4,364 GBP

A
Cheapest Retailer
-
£2,823 GBP
B+
Retailer 2
-
£2,909 GBP
View
B+
Retailer 3
-
£2,924 GBP
View
B+
Retailer 4
-
£2,946 GBP
View
B+
Retailer 5
-
£3,280 GBP
View
Retailer 6
-
£3,306 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£3,306 GBP
View
Price last confirmed 29 days ago
B+
Retailer 8
-
£3,306 GBP
View
Retailer 9
-
£3,306 GBP
View
Price last confirmed 38 days ago
B+
Retailer 10
-
£3,328 GBP
View
B+
Retailer 11
-
£3,416 GBP
View
B+
Retailer 12
-
£3,712 GBP
View
Retailer 13
-
£3,815 GBP
View
Price last confirmed 28 days ago
B
Retailer 14
-
£4,364 GBP
View
Retailer 15
-
£5,293 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
da36b586-3195-4784-8a8a-43b725e1d0e6 · Sep 28
£5,760 GBP
$7,752 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from £2,823 GBPSave up to £1,541 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
£2,823 GBP