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1.50ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 3555816099

Certificate GIA 3555816099

Diamond specifications and retailer prices

From £4,462 GBP
As of November 4, 2026
Save £3,229 GBP (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £7,691 GBP at With Clarity · As of November 6, 2026
View at With Clarity

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555816099. Listed at 10 retailers as of November 4, 2026, with prices from £4,462 to £7,691, a £3,229 spread on the same certified stone. With Clarity lists it at £7,691. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555816099
Dimensions7.41 × 7.38 × 4.46 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.41 mm7.38 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555816099
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

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: £4,831 GBP|Low: £4,462 GBP|High: £8,254 GBP|Avg: £5,667 GBP|-9.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 6, 2026
Retailer 8£4,462 GBP
Retailer 5£4,511 GBP
Retailer 1£4,831 GBP
Retailer 2£4,884 GBP
Retailer 3£5,124 GBP
Retailer 7£5,597 GBP
Retailer 4£5,637 GBP
Retailer 6£5,759 GBP
With Clarity£7,691 GBP

42 data points across 9 retailers

10 retailers£4,462 GBP to £7,691 GBP

A
Cheapest Retailer
-
£4,462 GBP
A
Retailer 2
-
£4,511 GBP
View
A
Retailer 3
-
£4,831 GBP
View
A
Retailer 4
-
£4,884 GBP
View
A
Retailer 5
-
£5,124 GBP
View
B+
Retailer 6
-
£5,597 GBP
View
B+
Retailer 7
-
£5,637 GBP
View
B+
Retailer 8
-
£5,759 GBP
View
B
Retailer 9
-
£6,507 GBP
View
Most Expensive
B+
With Clarity
3555816099 · Nov 6
£7,691 GBP
$10,295 USD
View
9 more retailers have this diamond
Prices start from £4,462 GBPSave up to £3,229 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
£4,462 GBP