Radiant|Natural|GIA

1.51ct E I1 Radiant Natural Diamond

ID • E/I1 • GIA 1549897802

Certificate GIA 1549897802

Diamond specifications and retailer prices

From £2,350 GBP
HK$24,600 HKD
As of October 30, 2026
Save £1,155 GBP (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £5,404 GBP at NZ Jewellers · As of October 18, 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 I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549897802. Listed at 9 retailers as of October 29, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
I1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549897802
Dimensions7.65 × 5.84 × 3.99 mm
L/W Ratio1.31
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Needle, Natural
Top View
7.65 mm5.84 mm1.51 ctE / I1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1549897802
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.4%

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 30
Current: £5,404 GBP|Low: £2,350 GBP|High: £5,494 GBP|Avg: £3,319 GBP|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5£2,350 GBP
Retailer 2£2,524 GBP
Retailer 8£2,805 GBP
Retailer 7£2,898 GBP
Retailer 6£3,102 GBP
Retailer 3£3,505 GBP
Retailer 4£3,579 GBP
Retailer 9£3,777 GBP
NZ Jewellers£5,404 GBP

44 data points across 9 retailers

9 retailers£2,350 GBP to £3,505 GBP

A
Cheapest Retailer
-
£2,350 GBP
HK$24,600 HKD
A
Retailer 2
-
£2,524 GBP
₹322,062 INR
View
A
Retailer 3
-
£2,898 GBP
$3,883 USD
View
Retailer 4
-
£3,102 GBP
$4,156 USD
View
Price last confirmed 14 days ago
Retailer 5
-
£3,102 GBP
$4,156 USD
View
Price last confirmed 13 days ago
Retailer 6
-
£3,102 GBP
$4,156 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
£3,505 GBP
€4,473 EUR
View
Retailer 8
-
£3,579 GBP
$4,796 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
388efef6-51ad-4ff0-9928-5df108353824 · Oct 18
£5,404 GBP
$7,241 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from £2,350 GBPSave up to £1,155 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
£2,350 GBP