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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2171943911

Certificate GIA 2171943911

Diamond specifications and retailer prices

From $6,976 AUD
$4,900 USD
As of November 1, 2026
Save $7,959 AUD (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $14,935 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2171943911. Listed at 23 retailers as of October 30, 2026, with prices from $6,976 to $14,935, a $7,959 spread on the same certified stone. NZ Jewellers lists it at $14,935. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2171943911
Dimensions7.12 × 5.74 × 3.98 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.12 mm5.74 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2171943911
Side View
Table 67.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 69.3%

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: $14,935 AUD|Low: $6,472 AUD|High: $14,935 AUD|Avg: $9,507 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
November 2, 2026
Retailer 8$6,848 AUD
Retailer 10$7,055 AUD
Retailer 12$7,467 AUD
Retailer 9$7,529 AUD
Retailer 3$8,089 AUD
Retailer 4$8,089 AUD
Retailer 5$8,566 AUD
Retailer 11$8,827 AUD
Retailer 2$9,755 AUD
Retailer 7$10,971 AUD
Retailer 6$13,155 AUD
NZ Jewellers$14,935 AUD

44 data points across 12 retailers

23 retailers$6,976 AUD to $14,935 AUD

Retailer 1
-
$6,848 AUD
$4,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$6,976 AUD
$4,900 USD
View
B+
Retailer 3
-
$7,055 AUD
$4,956 USD
View
B
Retailer 4
-
$7,345 AUD
View
B
Retailer 5
-
$7,467 AUD
$5,245 USD
View
Final sale: no returns
B
Retailer 6
-
$7,529 AUD
$5,289 USD
View
B
Retailer 7
-
$7,559 AUD
$5,310 USD
View
B
Retailer 8
-
$7,989 AUD
$5,612 USD
View
B
Retailer 9
-
$8,089 AUD
$5,682 USD
View
B
Retailer 10
-
$8,089 AUD
$5,682 USD
View
B
Retailer 11
-
$8,089 AUD
$5,682 USD
View
B
Retailer 12
-
$8,566 AUD
£4,738 GBP
View
B
Retailer 13
-
$8,678 AUD
View
Retailer 14
-
$8,827 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
$8,883 AUD
$6,240 USD
View
B
Retailer 16
-
$8,883 AUD
$6,240 USD
View
B
Retailer 17
-
$9,168 AUD
$6,440 USD
View
B
Retailer 18
-
$9,335 AUD
$6,557 USD
View
B
Retailer 19
-
$9,755 AUD
€6,526 EUR
View
Retailer 20
-
$9,846 AUD
$6,916 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$10,971 AUD
ZAR 124,500 ZAR
View
B
Retailer 22
-
$13,155 AUD
£7,276 GBP
View
Most Expensive
C
NZ Jewellers
5e857763-58db-40dd-b925-02ba4a7cf632 · Oct 30
$14,935 AUD
$10,491 USD
View
22 more retailers have this diamond
Prices start from $6,976 AUDSave up to $7,959 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
$6,976 AUD