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Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 6522020232

Certificate GIA 6522020232

Diamond specifications and retailer prices

From $4,381 AUD
As of November 5, 2026
Save $5,781 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,162 AUD at NZ Jewellers · As of November 3, 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 6522020232. Listed at 17 retailers as of November 3, 2026, with prices from $4,381 to $10,162, a $5,781 spread on the same certified stone. NZ Jewellers lists it at $10,162. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522020232
Dimensions7.53 × 5.79 × 4.00 mm
L/W Ratio1.30
Top View
7.53 mm5.79 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522020232
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,759 AUD|Low: $4,381 AUD|High: $9,872 AUD|Avg: $6,321 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7$4,381 AUD
Retailer 2$4,577 AUD
Retailer 8$4,634 AUD
Retailer 1$4,759 AUD
Retailer 9$5,302 AUD
Retailer 3$5,487 AUD
Retailer 10$5,595 AUD
Retailer 6$5,635 AUD
Retailer 4$5,985 AUD
Retailer 5$6,647 AUD
Retailer 11$9,753 AUD

38 data points across 11 retailers

17 retailers$4,381 AUD to $10,162 AUD

A
Cheapest Retailer
-
$4,381 AUD
Retailer 2
-
$4,577 AUD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
$4,634 AUD
View
B+
Retailer 4
-
$4,759 AUD
View
Retailer 5
-
$5,283 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$5,283 AUD
View
B+
Retailer 7
-
$5,302 AUD
View
B+
Retailer 8
-
$5,487 AUD
View
B+
Retailer 9
-
$5,513 AUD
View
B+
Retailer 10
-
$5,595 AUD
View
B+
Retailer 11
-
$5,635 AUD
View
B+
Retailer 12
-
$5,985 AUD
View
B+
Retailer 13
-
$6,097 AUD
View
Retailer 14
-
$6,602 AUD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$6,647 AUD
View
B
Retailer 16
-
$9,753 AUD
View
Most Expensive
B
NZ Jewellers
c26d7f03-e1b9-4c89-9ff9-047f129c184b · Nov 3
$10,162 AUD
$6,982 USD
View
16 more retailers have this diamond
Prices start from $4,381 AUDSave up to $5,781 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 Radiant
$4,381 AUD