CaratHunter
Plans
Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5553036039

Certificate GIA 5553036039

Diamond specifications and retailer prices

From $3,601 AUD
As of November 6, 2026
Save $4,291 AUD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,308 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553036039. Listed at 16 retailers as of November 2, 2026, with a 119% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5553036039
Dimensions7.32 × 7.37 × 4.54 mm
L/W Ratio1.01
Top View
7.32 mm7.37 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553036039
Side View
Table 60.0%Crown 33.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.8%

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 6
Current: $3,793 AUD|Low: $3,601 AUD|High: $8,071 AUD|Avg: $4,979 AUD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$3,601 AUD
Retailer 1$3,793 AUD
Retailer 6$4,191 AUD
Retailer 10$4,323 AUD
Retailer 2$4,720 AUD
Retailer 3$4,768 AUD
Retailer 7$4,854 AUD
Retailer 11$4,925 AUD
Retailer 4$5,000 AUD
Retailer 5$5,483 AUD
Retailer 8$7,892 AUD

38 data points across 11 retailers

16 retailers$3,601 AUD to $7,892 AUD

A
Cheapest Retailer
-
$3,601 AUD
A
Retailer 2
-
$3,793 AUD
View
A
Retailer 3
-
$4,191 AUD
View
A
Retailer 4
-
$4,323 AUD
View
A
Retailer 5
-
$4,411 AUD
View
Retailer 6
-
$4,720 AUD
View
Price last confirmed 17 days ago
Retailer 7
-
$4,768 AUD
View
Price last confirmed 39 days ago
Retailer 8
-
$4,768 AUD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$4,854 AUD
View
B+
Retailer 10
-
$4,925 AUD
View
Retailer 11
-
$4,953 AUD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$5,000 AUD
View
B+
Retailer 13
-
$5,483 AUD
View
Retailer 14
-
$5,503 AUD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$7,892 AUD
View
Most Expensive
NZ Jewellers
a57acf2a-190e-4ab8-973d-801dbbbb7728 · Sep 28
$8,308 AUD
$5,816 USD
View
Price last confirmed 39 days ago
15 more retailers have this diamond
Prices start from $3,601 AUDSave up to $4,291 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 Round
$3,601 AUD