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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 2235951484

Certificate GIA 2235951484

Diamond specifications and retailer prices

From $6,992 AUD
$4,900 USD
As of November 1, 2026
Save $7,978 AUD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $14,970 AUD at NZ Jewellers · As of October 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235951484. Listed at 22 retailers as of October 30, 2026, with prices from $6,992 to $14,970, a $7,978 spread on the same certified stone. NZ Jewellers lists it at $14,970. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle44.08°
OriginNatural
Grading LabGIA
CertificateGIA 2235951484
Dimensions7.91 × 5.75 × 3.89 mm
L/W Ratio1.38
Top View
7.91 mm5.75 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2235951484
Side View
Table 65.0%Crown 44.08°Girdle: Slightly ThickPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $14,970 AUD|Low: $7,072 AUD|High: $14,970 AUD|Avg: $9,346 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 11$7,072 AUD
Retailer 4$7,547 AUD
Retailer 13$7,547 AUD
Retailer 12$7,577 AUD
Retailer 3$8,108 AUD
Retailer 6$8,108 AUD
Retailer 14$8,108 AUD
Retailer 5$8,547 AUD
Retailer 7$8,586 AUD
Retailer 10$8,848 AUD
Retailer 2$9,232 AUD
Retailer 8$10,996 AUD
Retailer 9$13,256 AUD
NZ Jewellers$14,970 AUD

44 data points across 14 retailers

22 retailers$6,992 AUD to $14,970 AUD

B+
Cheapest Retailer
-
$6,992 AUD
$4,900 USD
B+
Retailer 2
-
$7,072 AUD
$4,956 USD
View
B
Retailer 3
-
$7,362 AUD
View
B
Retailer 4
-
$7,547 AUD
CA$7,346 CAD
View
B
Retailer 5
-
$7,547 AUD
$5,289 USD
View
B
Retailer 6
-
$7,577 AUD
$5,310 USD
View
B
Retailer 7
-
$8,108 AUD
$5,682 USD
View
B
Retailer 8
-
$8,108 AUD
$5,682 USD
View
B
Retailer 9
-
$8,108 AUD
$5,682 USD
View
B
Retailer 10
-
$8,547 AUD
$5,990 USD
View
B
Retailer 11
-
$8,586 AUD
£4,738 GBP
View
Retailer 12
-
$8,848 AUD
View
Price last confirmed 22 days ago
B
Retailer 13
-
$9,047 AUD
$6,340 USD
View
B
Retailer 14
-
$9,047 AUD
$6,340 USD
View
B
Retailer 15
-
$9,171 AUD
$6,427 USD
View
B
Retailer 16
-
$9,232 AUD
€6,162 EUR
View
B
Retailer 17
-
$9,346 AUD
$6,550 USD
View
B
Retailer 18
-
$9,356 AUD
$6,557 USD
View
Retailer 19
-
$9,868 AUD
$6,916 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$10,996 AUD
ZAR 124,500 ZAR
View
B
Retailer 21
-
$13,256 AUD
£7,315 GBP
View
Most Expensive
B
NZ Jewellers
ce8079b4-efe5-4bf1-8854-70654ab1cd25 · Oct 30
$14,970 AUD
$10,491 USD
View
21 more retailers have this diamond
Prices start from $6,992 AUDSave up to $7,978 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.

B+
1.51ct Radiant
$6,992 AUD