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Radiant|Natural|GIA

1.50ct K SI2 Radiant Natural Diamond

VG • K/SI2 • GIA 1553036800

Certificate GIA 1553036800

Diamond specifications and retailer prices

From $2,228 AUD
As of November 6, 2026
Save $3,985 AUD (64%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,213 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553036800. Listed at 13 retailers as of November 5, 2026, with prices from $2,228 to $6,213, a $3,985 spread on the same certified stone. NZ Jewellers lists it at $6,213. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1553036800
Dimensions7.50 × 5.77 × 4.02 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle, Indented Natural, Natural
Top View
7.50 mm5.77 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1553036800
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.6%

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: $6,213 AUD|Low: $2,228 AUD|High: $6,724 AUD|Avg: $3,653 AUD|-7.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8$2,228 AUD
Retailer 7$2,649 AUD
Retailer 11$2,972 AUD
Retailer 2$3,067 AUD
Retailer 3$3,148 AUD
Retailer 4$3,155 AUD
Retailer 5$3,184 AUD
Retailer 6$3,362 AUD
Retailer 10$3,382 AUD
Retailer 9$3,982 AUD
Retailer 12$5,474 AUD
NZ Jewellers$6,213 AUD

26 data points across 12 retailers

13 retailers$2,228 AUD to $6,213 AUD

A
Cheapest Retailer
-
$2,228 AUD
A
Retailer 2
-
$2,649 AUD
View
B+
Retailer 3
-
$2,972 AUD
View
B+
Retailer 4
-
$3,067 AUD
View
B+
Retailer 5
-
$3,148 AUD
View
Retailer 6
-
$3,155 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,184 AUD
View
B+
Retailer 8
-
$3,362 AUD
View
B+
Retailer 9
-
$3,382 AUD
View
Retailer 10
-
$3,500 AUD
View
Price last confirmed 62 days ago
B+
Retailer 11
-
$3,982 AUD
View
B+
Retailer 12
-
$5,474 AUD
View
Most Expensive
B+
NZ Jewellers
f6255555-8c09-4fef-8387-b436c8d4bf70 · Nov 5
$6,213 AUD
$4,269 USD
View
12 more retailers have this diamond
Prices start from $2,228 AUDSave up to $3,985 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
$2,228 AUD