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Radiant|Natural|GIA

1.50ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 6551540443

Certificate GIA 6551540443

Diamond specifications and retailer prices

From $5,951 AUD
As of November 6, 2026
Save $7,428 AUD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,379 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551540443. Listed at 16 retailers as of November 5, 2026, with prices from $5,951 to $13,379, a $7,428 spread on the same certified stone. NZ Jewellers lists it at $13,379. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551540443
Dimensions7.80 × 5.57 × 3.70 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
7.80 mm5.57 mm1.50 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551540443
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.5%

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 6
Current: $13,379 AUD|Low: $5,929 AUD|High: $13,379 AUD|Avg: $8,381 AUD|+0.7%
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
November 7, 2026
Retailer 12$5,951 AUD
Retailer 9$6,311 AUD
Retailer 4$6,977 AUD
Retailer 6$7,166 AUD
Retailer 10$7,453 AUD
Retailer 8$7,658 AUD
Retailer 7$7,890 AUD
Retailer 2$7,926 AUD
Retailer 3$8,000 AUD
Retailer 13$8,223 AUD
Retailer 11$8,310 AUD
Retailer 14$8,441 AUD
Retailer 15$9,146 AUD
Retailer 5$12,707 AUD
NZ Jewellers$13,379 AUD

22 data points across 15 retailers

16 retailers$5,951 AUD to $13,379 AUD

A
Cheapest Retailer
-
$5,951 AUD
A
Retailer 2
-
$6,311 AUD
View
Final sale: no returns
A
Retailer 3
-
$6,977 AUD
View
A
Retailer 4
-
$7,166 AUD
View
A
Retailer 5
-
$7,453 AUD
View
A
Retailer 6
-
$7,658 AUD
View
Retailer 7
-
$7,890 AUD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$7,926 AUD
View
A
Retailer 9
-
$8,000 AUD
View
A
Retailer 10
-
$8,223 AUD
View
A
Retailer 11
-
$8,310 AUD
View
A
Retailer 12
-
$8,441 AUD
View
A
Retailer 13
-
$9,146 AUD
View
Retailer 14
-
$9,358 AUD
View
Price last confirmed 62 days ago
B+
Retailer 15
-
$12,707 AUD
View
Most Expensive
B
NZ Jewellers
7b5098ec-7ca7-4c7e-a813-2c4bcf349377 · Nov 5
$13,379 AUD
$9,193 USD
View
15 more retailers have this diamond
Prices start from $5,951 AUDSave up to $7,428 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
$5,951 AUD