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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

GD • E/SI2 • GIA 5526856383

Certificate GIA 5526856383

Diamond specifications and retailer prices

From £2,405 GBP
₹305,042 INR
As of October 29, 2026
Save £2,714 GBP (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,537 GBP at NZ Jewellers · As of September 20, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5526856383. Listed at 12 retailers as of October 29, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526856383
Dimensions7.70 × 5.53 × 3.77 mm
L/W Ratio1.39
Top View
7.70 mm5.53 mm1.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526856383
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.3%

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: Oct 29
Current: £3,105 GBP|Low: £2,401 GBP|High: £6,300 GBP|Avg: £3,416 GBP|-15.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2£2,405 GBP
Retailer 7£2,679 GBP
Retailer 6£2,810 GBP
Retailer 3£2,885 GBP
Retailer 1£3,105 GBP
Retailer 8£3,353 GBP
Retailer 5£3,441 GBP
Retailer 4£5,119 GBP

41 data points across 8 retailers

12 retailers£2,405 GBP to £5,119 GBP

A
Cheapest Retailer
-
£2,405 GBP
₹305,042 INR
A
Retailer 2
-
£2,679 GBP
$3,567 USD
View
A
Retailer 3
-
£2,810 GBP
$3,742 USD
View
Final sale: no returns
A
Retailer 4
-
£2,885 GBP
View
A
Retailer 5
-
£3,105 GBP
View
A
Retailer 6
-
£3,353 GBP
$4,465 USD
View
Retailer 7
-
£3,376 GBP
$4,496 USD
View
Price last confirmed 73 days ago
A
Retailer 8
-
£3,441 GBP
€4,364 EUR
View
Retailer 9
-
£3,908 GBP
$5,204 USD
View
Price last confirmed 39 days ago
Retailer 10
-
£4,509 GBP
$6,005 USD
View
Price last confirmed 37 days ago
B+
Retailer 11
-
£5,119 GBP
View
Most Expensive
NZ Jewellers
e1506cdc-c016-429b-9b71-31504b463dd4 · Sep 20
£6,537 GBP
$8,705 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from £2,405 GBPSave up to £2,714 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
£2,405 GBP