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Radiant|Natural|GIA

1.51ct E I1 Radiant Natural Diamond

EX • E/I1 • GIA 7543774066

Certificate GIA 7543774066

Diamond specifications and retailer prices

From $4,556 AUD
HK$25,000 HKD
As of October 30, 2026
Save $2,270 AUD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,505 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 7543774066. Listed at 9 retailers as of October 30, 2026, with a 50% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7543774066
Dimensions7.63 × 5.75 × 3.79 mm
L/W Ratio1.33
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Extra Facet
Top View
7.63 mm5.75 mm1.51 ctE / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7543774066
Side View
Table 62.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 65.8%

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: $10,505 AUD|Low: $4,556 AUD|High: $10,569 AUD|Avg: $6,440 AUD|-0.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5$4,556 AUD
Retailer 3$4,902 AUD
Retailer 8$5,444 AUD
Retailer 7$5,582 AUD
Retailer 6$6,029 AUD
Retailer 2$6,825 AUD
Retailer 4$6,957 AUD
Retailer 9$7,338 AUD
NZ Jewellers$10,505 AUD

46 data points across 9 retailers

9 retailers$4,556 AUD to $6,825 AUD

A
Cheapest Retailer
-
$4,556 AUD
HK$25,000 HKD
A
Retailer 2
-
$4,902 AUD
₹327,971 INR
View
A
Retailer 3
-
$5,582 AUD
$3,921 USD
View
Retailer 4
-
$6,029 AUD
$4,235 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$6,029 AUD
$4,235 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$6,029 AUD
$4,235 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$6,825 AUD
€4,566 EUR
View
Retailer 8
-
$6,957 AUD
$4,887 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
31f822cf-b43b-48cc-975a-b6bf6effc59c · Oct 18
$10,505 AUD
$7,379 USD
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from $4,556 AUDSave up to $2,270 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
$4,556 AUD