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Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

VG • H/SI2 • GIA 1425086456

Certificate GIA 1425086456

Diamond specifications and retailer prices

From $7,539 AUD
As of November 6, 2026
Save $9,284 AUD (55%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $16,823 AUD at NZ Jewellers · As of November 5, 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 H 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 1425086456. Listed at 26 retailers as of November 5, 2026, with prices from $7,539 to $16,823, a $9,284 spread on the same certified stone. NZ Jewellers lists it at $16,823. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425086456
Dimensions9.48 × 5.24 × 3.03 mm
L/W Ratio1.81
Culet sizeNone
Top View
9.48 mm5.24 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425086456
Side View
Table 71.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.9%

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 6
Current: $16,823 AUD|Low: $7,293 AUD|High: $16,823 AUD|Avg: $10,131 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 11$7,539 AUD
Retailer 8$7,948 AUD
Retailer 15$8,022 AUD
Retailer 20$8,482 AUD
Retailer 6$8,978 AUD
Retailer 3$9,112 AUD
Retailer 7$9,112 AUD
Retailer 18$9,112 AUD
Retailer 5$9,483 AUD
Retailer 2$9,552 AUD
Retailer 19$9,862 AUD
Retailer 4$10,144 AUD
Retailer 17$10,144 AUD
Retailer 12$10,365 AUD
Retailer 16$10,479 AUD
Retailer 10$10,515 AUD
Retailer 13$10,929 AUD
Retailer 9$11,087 AUD
Retailer 14$14,819 AUD
NZ Jewellers$16,823 AUD

45 data points across 20 retailers

26 retailers$7,539 AUD to $16,823 AUD

B+
Cheapest Retailer
-
$7,539 AUD
B+
Retailer 2
-
$7,858 AUD
View
B+
Retailer 3
-
$7,948 AUD
View
B+
Retailer 4
-
$8,022 AUD
View
Final sale: no returns
B+
Retailer 5
-
$8,053 AUD
View
B+
Retailer 6
-
$8,259 AUD
View
B+
Retailer 7
-
$8,417 AUD
View
B+
Retailer 8
-
$8,482 AUD
View
B+
Retailer 9
-
$8,978 AUD
View
Retailer 10
-
$9,112 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$9,112 AUD
View
B+
Retailer 12
-
$9,112 AUD
View
B
Retailer 13
-
$9,483 AUD
View
B+
Retailer 14
-
$9,552 AUD
View
B
Retailer 15
-
$9,611 AUD
View
B
Retailer 16
-
$10,144 AUD
View
B
Retailer 17
-
$10,144 AUD
View
B
Retailer 18
-
$10,365 AUD
View
B
Retailer 19
-
$10,479 AUD
View
B
Retailer 20
-
$10,515 AUD
View
B
Retailer 21
-
$10,929 AUD
View
Retailer 22
-
$11,087 AUD
View
Price last confirmed 15 days ago
B
Retailer 23
-
$11,400 AUD
View
B
Retailer 24
-
$14,582 AUD
View
B
Retailer 25
-
$14,819 AUD
View
Most Expensive
C
NZ Jewellers
ae486e7b-c20a-420b-8574-a1a121338cdc · Nov 5
$16,823 AUD
$11,559 USD
View
25 more retailers have this diamond
Prices start from $7,539 AUDSave up to $9,284 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
$7,539 AUD