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Round|Natural|GIA

1.50ct K I1 Round Natural Diamond

EX • K/I1 • GIA 2437367505

Certificate GIA 2437367505

Diamond specifications and retailer prices

From $3,714 AUD
As of November 4, 2026
Save $1,796 AUD (33%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,252 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 2437367505. Listed at 8 retailers as of November 4, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2437367505
Dimensions7.32 × 7.26 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.32 mm7.26 mm1.50 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2437367505
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.1%

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 4
Current: $5,510 AUD|Low: $3,714 AUD|High: $5,635 AUD|Avg: $4,461 AUD|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2$3,714 AUD
Retailer 7$3,843 AUD
Retailer 4$3,911 AUD
Retailer 3$4,291 AUD
Retailer 6$4,311 AUD
Retailer 1$5,510 AUD
Retailer 5$5,635 AUD

24 data points across 7 retailers

8 retailers$3,714 AUD to $5,510 AUD

A
Cheapest Retailer
-
$3,714 AUD
B+
Retailer 2
-
$3,843 AUD
View
Retailer 3
-
$4,291 AUD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
$4,311 AUD
View
Retailer 5
-
$4,457 AUD
View
Price last confirmed 38 days ago
Retailer 6
-
$4,951 AUD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$5,510 AUD
View
Most Expensive
NZ Jewellers
425b9c5f-2297-49ad-95fe-a37ba72adacd · Sep 28
$8,252 AUD
$5,777 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from $3,714 AUDSave up to $1,796 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
$3,714 AUD