CaratHunter
Plans
Princess|Natural|IGI

1.51ct K SI1 Princess Natural Diamond

VG • K/SI1 • IGI 737544384

Shape and cutting style on the report: Princess cut

Certificate IGI 737544384

Diamond specifications and retailer prices

From $3,069 AUD
As of November 5, 2026
Save $4,033 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,102 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural princess diamond

This 1.51ct natural princess sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 737544384. Listed at 16 retailers as of November 5, 2026, with a 131% 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.7°
Pavilion angle37.4°
OriginNatural
Grading LabIGI
CertificateIGI 737544384
Dimensions6.20 × 6.12 × 4.34 mm
L/W Ratio1.01
Culet sizePointed
Top View
6.20 mm6.12 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737544384
Side View
Table 69.0%Crown 49.7°Girdle: STK-THKPavilion 37.4°Culet: NoneDepth 70.9%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $7,102 AUD|Low: $3,069 AUD|High: $7,102 AUD|Avg: $4,098 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 6, 2026
Retailer 10$3,069 AUD
Retailer 9$3,107 AUD
Retailer 2$3,295 AUD
Retailer 4$3,397 AUD
Retailer 12$3,397 AUD
Retailer 3$3,554 AUD
Retailer 6$3,755 AUD
Retailer 11$3,919 AUD
Retailer 7$4,146 AUD
Retailer 5$4,219 AUD
Retailer 8$5,934 AUD
NZ Jewellers$7,102 AUD

37 data points across 12 retailers

16 retailers$3,069 AUD to $7,102 AUD

A
Cheapest Retailer
-
$3,069 AUD
A
Retailer 2
-
$3,107 AUD
View
A
Retailer 3
-
$3,295 AUD
View
B+
Retailer 4
-
$3,326 AUD
View
Retailer 5
-
$3,397 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,397 AUD
View
B+
Retailer 7
-
$3,398 AUD
View
B+
Retailer 8
-
$3,554 AUD
View
B+
Retailer 9
-
$3,599 AUD
View
B+
Retailer 10
-
$3,755 AUD
View
B+
Retailer 11
-
$3,919 AUD
View
B+
Retailer 12
-
$4,146 AUD
View
B+
Retailer 13
-
$4,219 AUD
View
B
Retailer 14
-
$5,934 AUD
View
B
Retailer 15
-
$7,102 AUD
View
Most Expensive
NZ Jewellers
58a78d14-6b04-45b1-b182-045c2f49b360 · Oct 27
$7,102 AUD
$4,880 USD
View
Price last confirmed 10 days ago
15 more retailers have this diamond
Prices start from $3,069 AUDSave up to $4,033 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 Princess
$3,069 AUD