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Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 6502761742

Certificate GIA 6502761742

Diamond specifications and retailer prices

From $5,563 AUD
As of November 5, 2026
Save $6,840 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,403 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant 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 stated by the retailer rather than the lab and certified by GIA 6502761742. Listed at 16 retailers as of November 5, 2026, with prices from $5,563 to $12,403, a $6,840 spread on the same certified stone. NZ Jewellers lists it at $12,403. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6502761742
Dimensions7.48 × 5.71 × 3.97 mm
L/W Ratio1.31
Top View
7.48 mm5.71 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6502761742
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $12,403 AUD|Low: $5,538 AUD|High: $12,403 AUD|Avg: $7,949 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 7$5,538 AUD
Retailer 9$6,113 AUD
Retailer 6$6,449 AUD
Retailer 8$6,449 AUD
Retailer 10$6,449 AUD
Retailer 2$7,009 AUD
Retailer 3$7,575 AUD
Retailer 4$8,686 AUD
Retailer 5$11,307 AUD
NZ Jewellers$12,403 AUD

45 data points across 10 retailers

16 retailers$5,563 AUD to $12,403 AUD

Retailer 1
-
$5,538 AUD
Price last confirmed 10 days ago
B+
Retailer 2
-
$5,563 AUD
View
B+
Retailer 3
-
$5,676 AUD
View
B+
Retailer 4
-
$6,057 AUD
View
B+
Retailer 5
-
$6,113 AUD
View
Retailer 6
-
$6,449 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$6,449 AUD
View
B+
Retailer 8
-
$6,449 AUD
View
B
Retailer 9
-
$6,789 AUD
View
B
Retailer 10
-
$7,009 AUD
View
B
Retailer 11
-
$7,441 AUD
View
B
Retailer 12
-
$7,575 AUD
View
Retailer 13
-
$7,859 AUD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$8,686 AUD
View
B
Retailer 15
-
$11,307 AUD
View
Most Expensive
C
NZ Jewellers
62cc8420-e6e5-4148-9256-f54bcb1e0b02 · Nov 5
$12,403 AUD
$8,522 USD
View
15 more retailers have this diamond
Prices start from $5,563 AUDSave up to $6,840 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.

B+
1.50ct Radiant
$5,563 AUD