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Round|Natural|GIA

1.50ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2557315032

Certificate GIA 2557315032

Diamond specifications and retailer prices

From £3,973 GBP
$5,332 USD
As of November 1, 2026
Save £3,649 GBP (48%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £8,653 GBP at NZ Jewellers · As of October 23, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557315032. Listed at 18 retailers as of November 1, 2026, with a 92% 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557315032
Dimensions7.31 × 7.22 × 4.55 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle, Indented Natural, Natural
Top View
7.31 mm7.22 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557315032
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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 1
Current: £8,653 GBP|Low: £3,900 GBP|High: £8,653 GBP|Avg: £5,775 GBP
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
November 2, 2026
Retailer 10£4,091 GBP
Retailer 13£4,327 GBP
Retailer 3£4,687 GBP
Retailer 11£4,687 GBP
Retailer 2£4,773 GBP
Retailer 4£4,888 GBP
Retailer 7£4,929 GBP
Retailer 12£5,408 GBP
Retailer 6£5,493 GBP
Retailer 9£5,533 GBP
Retailer 5£7,500 GBP
Retailer 8£7,622 GBP
NZ Jewellers£8,653 GBP

36 data points across 13 retailers

18 retailers£3,973 GBP to £7,622 GBP

A
Cheapest Retailer
-
£3,973 GBP
$5,332 USD
A
Retailer 2
-
£4,088 GBP
$5,486 USD
View
A
Retailer 3
-
£4,091 GBP
$5,490 USD
View
A
Retailer 4
-
£4,142 GBP
$5,559 USD
View
A
Retailer 5
-
£4,327 GBP
$5,806 USD
View
Final sale: no returns
A
Retailer 6
-
£4,618 GBP
$6,197 USD
View
Retailer 7
-
£4,687 GBP
$6,290 USD
View
Price last confirmed 8 days ago
Retailer 8
-
£4,687 GBP
$6,290 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£4,727 GBP
$6,343 USD
View
Price last confirmed 19 days ago
B+
Retailer 10
-
£4,773 GBP
$6,405 USD
View
B+
Retailer 11
-
£4,888 GBP
$6,560 USD
View
A
Retailer 12
-
£4,929 GBP
View
Retailer 13
-
£5,408 GBP
$7,257 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
£5,493 GBP
View
B+
Retailer 15
-
£5,533 GBP
€7,071 EUR
View
Retailer 16
-
£7,500 GBP
$10,065 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
£7,622 GBP
View
Most Expensive
NZ Jewellers
b1440a40-da58-491f-ab0a-10995370d40b · Oct 23
£8,653 GBP
$11,612 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from £3,973 GBPSave up to £3,649 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
£3,973 GBP