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Radiant|Natural|GIA

1.51ct E I1 Radiant Natural Diamond

ID • E/I1 • GIA 1549897802

Certificate GIA 1549897802

Diamond specifications and retailer prices

From $4,483 AUD
HK$24,600 HKD
As of October 30, 2026
Save $2,204 AUD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,308 AUD 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: $10,308 AUD|Low: $4,483 AUD|High: $10,479 AUD|Avg: $6,330 AUD|-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$4,483 AUD
Retailer 2$4,814 AUD
Retailer 8$5,351 AUD
Retailer 7$5,528 AUD
Retailer 6$5,916 AUD
Retailer 3$6,686 AUD
Retailer 4$6,828 AUD
Retailer 9$7,204 AUD
NZ Jewellers$10,308 AUD

44 data points across 9 retailers

9 retailers$4,483 AUD to $6,686 AUD

A
Cheapest Retailer
-
$4,483 AUD
HK$24,600 HKD
A
Retailer 2
-
$4,814 AUD
₹322,062 INR
View
A
Retailer 3
-
$5,528 AUD
$3,883 USD
View
Retailer 4
-
$5,916 AUD
$4,156 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$5,916 AUD
$4,156 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$5,916 AUD
$4,156 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$6,686 AUD
€4,473 EUR
View
Retailer 8
-
$6,828 AUD
$4,796 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
388efef6-51ad-4ff0-9928-5df108353824 · Oct 18
$10,308 AUD
$7,241 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $4,483 AUDSave up to $2,204 AUD

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
$4,483 AUD