Princess|Natural|GIA

1.50ct K SI1 Princess Natural Diamond

ID • K/SI1 • GIA 6237830804

Certificate GIA 6237830804

Diamond specifications and retailer prices

From $4,414 AUD
As of November 5, 2026
Save $3,237 AUD (42%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,994 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural princess diamond

This 1.5ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6237830804. Listed at 10 retailers as of November 4, 2026, with a 73% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6237830804
Dimensions6.37 × 6.18 × 4.65 mm
L/W Ratio1.03
Top View
6.37 mm6.18 mm1.50 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6237830804
Side View
Table 72.0%CrownGirdle: ThickPavilionCulet: NoneDepth 75.3%

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 5
Current: $5,340 AUD|Low: $4,257 AUD|High: $7,764 AUD|Avg: $5,554 AUD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$4,414 AUD
Retailer 2$4,747 AUD
Retailer 1$5,340 AUD
Retailer 3$5,600 AUD
Retailer 4$7,651 AUD

44 data points across 5 retailers

10 retailers$4,414 AUD to $7,651 AUD

A
Cheapest Retailer
-
$4,414 AUD
Retailer 2
-
$4,588 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$4,588 AUD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
$4,747 AUD
View
Retailer 5
-
$4,764 AUD
View
Price last confirmed 38 days ago
Retailer 6
-
$5,294 AUD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$5,340 AUD
View
B+
Retailer 8
-
$5,600 AUD
View
B
Retailer 9
-
$7,651 AUD
View
Most Expensive
NZ Jewellers
7e23ffa9-f664-424e-93f9-643d90508076 · Sep 30
$7,994 AUD
$5,596 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $4,414 AUDSave up to $3,237 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
1.50ct Princess
$4,414 AUD