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Round|Natural|GIA

1.50ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6565500939

Certificate GIA 6565500939

Diamond specifications and retailer prices

From £5,429 GBP
As of November 5, 2026
Save £6,550 GBP (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £11,979 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565500939. Listed at 29 retailers as of November 5, 2026, with prices from £5,429 to £11,979, a £6,550 spread on the same certified stone. NZ Jewellers lists it at £11,979. 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 angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565500939
Dimensions7.29 × 7.32 × 4.49 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Natural
Top View
7.29 mm7.32 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565500939
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £11,979 GBP|Low: £5,429 GBP|High: £11,979 GBP|Avg: £6,867 GBP
NZ Jewellers
Retailer 2
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Retailer 28
November 6, 2026
Retailer 14£5,429 GBP
Retailer 10£5,609 GBP
Retailer 13£5,695 GBP
Retailer 4£5,766 GBP
Retailer 23£5,824 GBP
Retailer 9£5,962 GBP
Retailer 11£5,989 GBP
Retailer 26£6,047 GBP
Retailer 5£6,383 GBP
Retailer 15£6,393 GBP
Retailer 20£6,489 GBP
Retailer 24£6,575 GBP
Retailer 3£6,589 GBP
Retailer 2£6,645 GBP
Retailer 18£6,687 GBP
Retailer 17£6,690 GBP
Retailer 12£7,105 GBP
Retailer 21£7,105 GBP
Retailer 6£7,130 GBP
Retailer 19£7,163 GBP
Retailer 16£7,256 GBP
Retailer 7£7,344 GBP
Retailer 8£7,487 GBP
Retailer 27£7,646 GBP
Retailer 22£7,799 GBP
Retailer 25£8,738 GBP
Retailer 28£9,954 GBP
NZ Jewellers£11,979 GBP

5 data points across 28 retailers

29 retailers£5,429 GBP to £11,979 GBP

B+
Cheapest Retailer
-
£5,429 GBP
B+
Retailer 2
-
£5,591 GBP
View
B+
Retailer 3
-
£5,609 GBP
View
B+
Retailer 4
-
£5,695 GBP
View
B+
Retailer 5
-
£5,766 GBP
View
B+
Retailer 6
-
£5,824 GBP
View
B+
Retailer 7
-
£5,962 GBP
View
B+
Retailer 8
-
£5,989 GBP
View
Final sale: no returns
B+
Retailer 9
-
£6,047 GBP
View
B+
Retailer 10
-
£6,383 GBP
View
B+
Retailer 11
-
£6,393 GBP
View
B+
Retailer 12
-
£6,489 GBP
View
B+
Retailer 13
-
£6,575 GBP
View
B+
Retailer 14
-
£6,589 GBP
View
B+
Retailer 15
-
£6,645 GBP
View
B
Retailer 16
-
£6,687 GBP
View
B
Retailer 17
-
£6,690 GBP
View
B+
Retailer 18
-
£7,105 GBP
View
B+
Retailer 19
-
£7,105 GBP
View
B+
Retailer 20
-
£7,130 GBP
View
B+
Retailer 21
-
£7,163 GBP
View
B+
Retailer 22
-
£7,256 GBP
View
B+
Retailer 23
-
£7,344 GBP
View
B
Retailer 24
-
£7,487 GBP
View
B
Retailer 25
-
£7,646 GBP
View
B+
Retailer 26
-
£7,799 GBP
View
B
Retailer 27
-
£8,738 GBP
View
B
Retailer 28
-
£9,954 GBP
View
Most Expensive
B
NZ Jewellers
73c54a4d-3403-456e-9af7-8e2019c5b838 · Nov 5
£11,979 GBP
$16,034 USD
View
28 more retailers have this diamond
Prices start from £5,429 GBPSave up to £6,550 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.

B+
1.50ct Round
£5,429 GBP