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Radiant|Natural|GIA

1.51ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 6552111044

Certificate GIA 6552111044

Diamond specifications and retailer prices

From £2,826 GBP
$3,786 USD
As of November 1, 2026
Save £2,819 GBP (50%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,174 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552111044. Listed at 16 retailers as of November 1, 2026, with a 100% 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

1.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552111044
Dimensions8.05 × 5.53 × 3.85 mm
L/W Ratio1.46
Top View
8.05 mm5.53 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552111044
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.6%

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: £3,504 GBP|Low: £2,826 GBP|High: £5,712 GBP|Avg: £3,822 GBP|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£2,826 GBP
Retailer 6£3,211 GBP
Retailer 1£3,504 GBP
Retailer 3£3,524 GBP
Retailer 2£4,009 GBP
Retailer 4£5,644 GBP

42 data points across 6 retailers

16 retailers£2,826 GBP to £5,644 GBP

A
Cheapest Retailer
-
£2,826 GBP
$3,786 USD
B+
Retailer 2
-
£2,897 GBP
$3,881 USD
View
B+
Retailer 3
-
£3,137 GBP
$4,203 USD
View
B+
Retailer 4
-
£3,195 GBP
$4,280 USD
View
Retailer 5
-
£3,211 GBP
$4,302 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£3,211 GBP
$4,302 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
£3,504 GBP
View
B+
Retailer 8
-
£3,524 GBP
View
B+
Retailer 9
-
£3,612 GBP
$4,840 USD
View
B+
Retailer 10
-
£3,612 GBP
$4,840 USD
View
Retailer 11
-
£3,704 GBP
$4,963 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
£3,732 GBP
$5,000 USD
View
Retailer 13
-
£3,913 GBP
$5,243 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
£4,009 GBP
€5,116 EUR
View
B
Retailer 15
-
£5,644 GBP
View
Most Expensive
NZ Jewellers
45705f93-caef-4693-904f-1d190c752ddf · Sep 30
£6,174 GBP
$8,272 USD
View
Price last confirmed 32 days ago
15 more retailers have this diamond
Prices start from £2,826 GBPSave up to £2,819 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
1.51ct Radiant
£2,826 GBP