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Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 7546878538

Certificate GIA 7546878538

Diamond specifications and retailer prices

From $3,383 AUD
As of November 6, 2026
Save $4,644 AUD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,027 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7546878538. Listed at 17 retailers as of November 5, 2026, with prices from $3,383 to $8,027, a $4,644 spread on the same certified stone. NZ Jewellers lists it at $8,027. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle37°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7546878538
Dimensions7.10 × 7.20 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Cloud, Pinpoint, Indented Natural
Top View
7.10 mm7.20 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7546878538
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 41°Culet: NoneDepth 64.3%

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: $8,027 AUD|Low: $3,383 AUD|High: $8,027 AUD|Avg: $5,291 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 14$3,383 AUD
Retailer 3$3,916 AUD
Retailer 13$4,000 AUD
Retailer 8$4,390 AUD
Retailer 4$4,607 AUD
Retailer 7$4,711 AUD
Retailer 6$4,937 AUD
Retailer 2$5,017 AUD
Retailer 5$5,317 AUD
Retailer 9$5,333 AUD
Retailer 11$5,360 AUD
Retailer 10$5,623 AUD
Retailer 12$7,684 AUD
NZ Jewellers$8,027 AUD

36 data points across 14 retailers

17 retailers$3,383 AUD to $8,027 AUD

A
Cheapest Retailer
-
$3,383 AUD
A
Retailer 2
-
$3,916 AUD
View
B+
Retailer 3
-
$4,000 AUD
View
B+
Retailer 4
-
$4,091 AUD
View
B+
Retailer 5
-
$4,390 AUD
View
Retailer 6
-
$4,607 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$4,711 AUD
View
Retailer 8
-
$4,784 AUD
View
Price last confirmed 38 days ago
B+
Retailer 9
-
$4,937 AUD
View
B+
Retailer 10
-
$5,017 AUD
View
B+
Retailer 11
-
$5,317 AUD
View
B+
Retailer 12
-
$5,333 AUD
View
B+
Retailer 13
-
$5,360 AUD
View
B+
Retailer 14
-
$5,623 AUD
View
B
Retailer 15
-
$6,511 AUD
View
B
Retailer 16
-
$7,684 AUD
View
Most Expensive
B
NZ Jewellers
42a7469c-6b90-48c4-a836-741e832470b3 · Nov 5
$8,027 AUD
$5,619 USD
View
16 more retailers have this diamond
Prices start from $3,383 AUDSave up to $4,644 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
$3,383 AUD