Radiant|Natural|IGI

1.51ct K VS2 Radiant Natural Diamond

VG • K/VS2 • IGI 659458949

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 659458949

Diamond specifications and retailer prices

From $3,630 AUD
As of November 6, 2026
Save $4,389 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,377 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 K colour (faint-tinted) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 659458949. Listed at 17 retailers as of November 4, 2026, with a 121% 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
K
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle28.4°
OriginNatural
Grading LabIGI
CertificateIGI 659458949
Dimensions7.95 × 5.43 × 3.64 mm
L/W Ratio1.46
Culet sizePointed
Top View
7.95 mm5.43 mm1.51 ctK / VS2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 659458949
Side View
Table 63.0%Crown 39.8°Girdle: STK-THKPavilion 28.4°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,066 AUD|Low: $3,630 AUD|High: $8,137 AUD|Avg: $5,190 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 2$3,630 AUD
Retailer 8$4,269 AUD
Retailer 6$4,352 AUD
Retailer 7$4,809 AUD
Retailer 1$5,066 AUD
Retailer 3$5,597 AUD
Retailer 4$5,868 AUD
Retailer 5$8,019 AUD

38 data points across 8 retailers

17 retailers$3,630 AUD to $8,019 AUD

A
Cheapest Retailer
-
$3,630 AUD
B+
Retailer 2
-
$4,269 AUD
View
B+
Retailer 3
-
$4,349 AUD
View
Retailer 4
-
$4,352 AUD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$4,599 AUD
View
B+
Retailer 6
-
$4,650 AUD
View
Retailer 7
-
$4,809 AUD
View
Price last confirmed 9 days ago
Retailer 8
-
$4,809 AUD
View
Price last confirmed 30 days ago
Retailer 9
-
$4,993 AUD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$5,017 AUD
View
B+
Retailer 11
-
$5,066 AUD
View
Retailer 12
-
$5,548 AUD
View
Price last confirmed 29 days ago
B+
Retailer 13
-
$5,548 AUD
View
B+
Retailer 14
-
$5,597 AUD
View
B+
Retailer 15
-
$5,868 AUD
View
B+
Retailer 16
-
$8,019 AUD
View
Most Expensive
NZ Jewellers
1dc04e8a-3ba9-4593-8fb1-5bf664079ace · Sep 30
$8,377 AUD
$5,756 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $3,630 AUDSave up to $4,389 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
$3,630 AUD