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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 2554742949

Certificate GIA 2554742949

Diamond specifications and retailer prices

From $3,583 AUD
As of November 6, 2026
Save $4,814 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,397 AUD at NZ Jewellers · As of November 5, 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 very-good cut grade and certified by GIA 2554742949. Listed at 16 retailers as of November 5, 2026, with prices from $3,583 to $8,397, a $4,814 spread on the same certified stone. NZ Jewellers lists it at $8,397. 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

1.50
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554742949
Dimensions7.08 × 7.16 × 4.60 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
7.08 mm7.16 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2554742949
Side View
Table 57.0%Crown 38°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.6%

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: $8,397 AUD|Low: $3,547 AUD|High: $8,478 AUD|Avg: $5,370 AUD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 14$3,583 AUD
Retailer 8$4,193 AUD
Retailer 7$4,320 AUD
Retailer 15$4,328 AUD
Retailer 10$4,491 AUD
Retailer 12$4,640 AUD
Retailer 16$4,820 AUD
Retailer 5$4,867 AUD
Retailer 6$4,983 AUD
Retailer 4$5,005 AUD
Retailer 3$5,561 AUD
Retailer 9$5,595 AUD
Retailer 11$5,605 AUD
Retailer 2$6,361 AUD
Retailer 13$8,038 AUD
NZ Jewellers$8,397 AUD

36 data points across 16 retailers

16 retailers$3,583 AUD to $8,397 AUD

A
Cheapest Retailer
-
$3,583 AUD
Retailer 2
-
$4,193 AUD
View
Price last confirmed 24 days ago
Retailer 3
-
$4,320 AUD
View
Price last confirmed 22 days ago
B+
Retailer 4
-
$4,328 AUD
View
B+
Retailer 5
-
$4,491 AUD
View
B+
Retailer 6
-
$4,640 AUD
View
B+
Retailer 7
-
$4,820 AUD
View
Retailer 8
-
$4,867 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
$4,983 AUD
View
Price last confirmed 24 days ago
B+
Retailer 10
-
$5,005 AUD
View
B+
Retailer 11
-
$5,561 AUD
View
B+
Retailer 12
-
$5,595 AUD
View
B+
Retailer 13
-
$5,605 AUD
View
B+
Retailer 14
-
$6,361 AUD
View
B
Retailer 15
-
$8,038 AUD
View
Most Expensive
B
NZ Jewellers
de90cd4c-683e-4be6-aa48-3892db556a54 · Nov 5
$8,397 AUD
$5,878 USD
View
15 more retailers have this diamond
Prices start from $3,583 AUDSave up to $4,814 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
$3,583 AUD