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Radiant|Natural|GIA

1.54ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6515161105

Certificate GIA 6515161105

Diamond specifications and retailer prices

From £4,091 GBP
As of November 6, 2026
Save £5,367 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £9,458 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.54ct natural radiant diamond

This 1.54ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA 6515161105. Listed at 20 retailers as of November 5, 2026, with prices from £4,091 to £9,458, a £5,367 spread on the same certified stone. NZ Jewellers lists it at £9,458. 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

1.54
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6515161105
Dimensions6.88 × 5.92 × 4.14 mm
L/W Ratio1.16
Top View
6.88 mm5.92 mm1.54 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515161105
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.9%

Caratlytics Score

How it works →
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: £9,458 GBP|Low: £4,091 GBP|High: £9,877 GBP|Avg: £5,663 GBP|-4.2%
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
Retailer 18
Retailer 19
November 7, 2026
Retailer 10£4,091 GBP
Retailer 8£4,277 GBP
Retailer 9£4,468 GBP
Retailer 6£4,516 GBP
Retailer 7£4,728 GBP
Retailer 19£4,729 GBP
Retailer 3£4,748 GBP
Retailer 5£5,123 GBP
Retailer 4£5,202 GBP
Retailer 16£5,279 GBP
Retailer 2£5,296 GBP
Retailer 13£5,437 GBP
Retailer 11£5,693 GBP
Retailer 18£5,911 GBP
Retailer 12£6,008 GBP
Retailer 15£6,643 GBP
Retailer 17£6,900 GBP
Retailer 14£7,839 GBP
NZ Jewellers£9,458 GBP

32 data points across 19 retailers

20 retailers£4,091 GBP to £9,458 GBP

A
Cheapest Retailer
-
£4,091 GBP
Retailer 2
-
£4,277 GBP
View
Price last confirmed 10 days ago
A
Retailer 3
-
£4,468 GBP
View
A
Retailer 4
-
£4,516 GBP
View
A
Retailer 5
-
£4,728 GBP
View
Final sale: no returns
Retailer 6
-
£4,729 GBP
View
Price last confirmed 9 days ago
A
Retailer 7
-
£4,748 GBP
View
A
Retailer 8
-
£5,123 GBP
View
B+
Retailer 9
-
£5,202 GBP
View
A
Retailer 10
-
£5,279 GBP
View
A
Retailer 11
-
£5,296 GBP
View
Retailer 12
-
£5,437 GBP
View
Retailer 13
-
£5,693 GBP
View
Price last confirmed 16 days ago
B+
Retailer 14
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£5,911 GBP
View
Retailer 15
-
£6,008 GBP
View
Retailer 16
-
£6,507 GBP
View
Price last confirmed 24 days ago
Retailer 17
-
£6,643 GBP
View
B+
Retailer 18
-
£6,900 GBP
View
B+
Retailer 19
-
£7,839 GBP
View
Most Expensive
B
NZ Jewellers
5547475d-b805-4045-b9f2-47d17f6e9e3f · Nov 5
£9,458 GBP
$12,660 USD
View
19 more retailers have this diamond
Prices start from £4,091 GBPSave up to £5,367 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
1.54ct Radiant
£4,091 GBP