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Radiant|Natural|GIA

1.51ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 3555981920

Certificate GIA 3555981920

Diamond specifications and retailer prices

From $4,602 AUD
₹307,865 INR
As of November 1, 2026
Save $5,266 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,529 AUD at NZ Jewellers · As of September 30, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555981920. Listed at 17 retailers as of November 1, 2026, with a 114% 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
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555981920
Dimensions7.93 × 5.61 × 3.86 mm
L/W Ratio1.41
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud
Top View
7.93 mm5.61 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555981920
Side View
Table 64.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.8%

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: Nov 1
Current: $6,036 AUD|Low: $4,602 AUD|High: $10,228 AUD|Avg: $6,065 AUD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 4$4,602 AUD
Retailer 9$4,711 AUD
Retailer 11$4,856 AUD
Retailer 8$5,361 AUD
Retailer 3$5,447 AUD
Retailer 5$5,834 AUD
Retailer 7$5,979 AUD
Retailer 1$6,036 AUD
Retailer 2$6,111 AUD
Retailer 10$6,677 AUD
Retailer 6$9,868 AUD

24 data points across 11 retailers

17 retailers$4,602 AUD to $9,868 AUD

A
Cheapest Retailer
-
$4,602 AUD
₹307,865 INR
A
Retailer 2
-
$4,711 AUD
$3,309 USD
View
A
Retailer 3
-
$4,856 AUD
$3,411 USD
View
B+
Retailer 4
-
$5,361 AUD
$3,766 USD
View
B+
Retailer 5
-
$5,447 AUD
$3,826 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,834 AUD
£3,227 GBP
View
B+
Retailer 7
-
$5,979 AUD
$4,200 USD
View
B+
Retailer 8
-
$6,036 AUD
£3,339 GBP
View
Retailer 9
-
$6,043 AUD
$4,245 USD
View
Price last confirmed 25 days ago
Retailer 10
-
$6,043 AUD
$4,245 USD
View
Price last confirmed 32 days ago
Retailer 11
-
$6,043 AUD
$4,245 USD
View
Price last confirmed 25 days ago
B+
Retailer 12
-
$6,105 AUD
View
B+
Retailer 13
-
$6,111 AUD
$4,292 USD
View
B+
Retailer 14
-
$6,677 AUD
€4,467 EUR
View
Retailer 15
-
$6,973 AUD
$4,898 USD
View
Price last confirmed 23 days ago
B
Retailer 16
-
$9,868 AUD
£5,458 GBP
View
Most Expensive
NZ Jewellers
3c758738-d722-41e2-afee-e174d5134aa2 · Sep 30
$10,529 AUD
$7,396 USD
View
Price last confirmed 32 days ago
16 more retailers have this diamond
Prices start from $4,602 AUDSave up to $5,266 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
$4,602 AUD