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Radiant|Natural|GIA

1.51ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 6552704784

Certificate GIA 6552704784

Diamond specifications and retailer prices

From £2,605 GBP
₹332,365 INR
As of November 1, 2026
Save £2,681 GBP (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,912 GBP at NZ Jewellers · As of October 6, 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 6552704784. Listed at 19 retailers as of November 1, 2026, with a 103% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552704784
Dimensions7.93 × 5.47 × 3.75 mm
L/W Ratio1.45
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Natural
Top View
7.93 mm5.47 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552704784
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

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: £3,395 GBP|Low: £2,605 GBP|High: £5,469 GBP|Avg: £3,397 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5£2,605 GBP
Retailer 8£2,670 GBP
Retailer 4£2,778 GBP
Retailer 11£2,990 GBP
Retailer 10£3,058 GBP
Retailer 3£3,062 GBP
Retailer 6£3,281 GBP
Retailer 2£3,358 GBP
Retailer 1£3,395 GBP
Retailer 12£3,429 GBP
Retailer 9£3,755 GBP
Retailer 7£5,285 GBP

23 data points across 12 retailers

19 retailers£2,605 GBP to £5,285 GBP

A
Cheapest Retailer
-
£2,605 GBP
₹332,365 INR
A
Retailer 2
-
£2,670 GBP
$3,577 USD
View
A
Retailer 3
-
£2,778 GBP
$3,722 USD
View
B+
Retailer 4
-
£2,990 GBP
$4,006 USD
View
B+
Retailer 5
-
£3,058 GBP
$4,097 USD
View
B+
Retailer 6
-
£3,062 GBP
$4,103 USD
View
Final sale: no returns
B+
Retailer 7
-
£3,281 GBP
View
B+
Retailer 8
-
£3,358 GBP
$4,500 USD
View
Retailer 9
-
£3,393 GBP
$4,546 USD
View
Price last confirmed 25 days ago
Retailer 10
-
£3,393 GBP
$4,546 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
£3,395 GBP
View
B+
Retailer 12
-
£3,429 GBP
$4,595 USD
View
Retailer 13
-
£3,431 GBP
$4,597 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
£3,453 GBP
A$7,118 AUD
View
B+
Retailer 15
-
£3,755 GBP
€4,792 EUR
View
Retailer 16
-
£3,915 GBP
$5,246 USD
View
Price last confirmed 23 days ago
Retailer 17
-
£3,959 GBP
$5,304 USD
View
Price last confirmed 56 days ago
B
Retailer 18
-
£5,285 GBP
View
Most Expensive
NZ Jewellers
d248a9cd-1e74-4f67-8b93-b3267060fcd1 · Oct 6
£5,912 GBP
$7,921 USD
View
Price last confirmed 26 days ago
18 more retailers have this diamond
Prices start from £2,605 GBPSave up to £2,681 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
£2,605 GBP