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Radiant|Natural|GIA

1.51ct K SI2 Radiant Natural Diamond

VG • K/SI2 • GIA 7541768610

Certificate GIA 7541768610

Diamond specifications and retailer prices

From $4,750 AUD
As of November 6, 2026
Save $4,571 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,322 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7541768610. Listed at 11 retailers as of November 5, 2026, with prices from $4,750 to $9,322, a $4,571 spread on the same certified stone. NZ Jewellers lists it at $9,322. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7541768610
Dimensions7.60 × 5.82 × 3.85 mm
L/W Ratio1.31
Culet sizeNone
Top View
7.60 mm5.82 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541768610
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.2%

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: $9,322 AUD|Low: $3,176 AUD|High: $9,322 AUD|Avg: $4,661 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
November 7, 2026
Retailer 8$3,176 AUD
Retailer 4$3,378 AUD
Retailer 6$3,455 AUD
Retailer 5$3,966 AUD
Retailer 3$3,982 AUD
Retailer 9$4,403 AUD
Retailer 16$4,750 AUD
Retailer 17$4,918 AUD
Retailer 10$5,280 AUD
Retailer 7$5,334 AUD
Retailer 14$5,352 AUD
Retailer 2$5,503 AUD
Retailer 15$5,563 AUD
Retailer 11$5,715 AUD
Retailer 12$6,114 AUD
Retailer 13$8,923 AUD
NZ Jewellers$9,322 AUD

33 data points across 17 retailers

11 retailers$4,750 AUD to $9,322 AUD

Retailer 1
-
$3,455 AUD
Price last confirmed 33 days ago
B+
Retailer 2
-
$4,750 AUD
View
B+
Retailer 3
-
$4,918 AUD
View
B+
Retailer 4
-
$5,280 AUD
View
B+
Retailer 5
-
$5,352 AUD
View
B+
Retailer 6
-
$5,503 AUD
View
B+
Retailer 7
-
$5,563 AUD
View
B+
Retailer 8
-
$5,715 AUD
View
B+
Retailer 9
-
$6,114 AUD
View
B
Retailer 10
-
$8,923 AUD
View
Most Expensive
B
NZ Jewellers
0937520e-edfb-480c-9018-e22b78e1d8bb · Nov 5
$9,322 AUD
$6,405 USD
View
10 more retailers have this diamond
Prices start from $4,750 AUDSave up to $4,571 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
$4,750 AUD