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Radiant|Natural|GIA

1.50ct L SI1 Radiant Natural Diamond

VG • L/SI1 • GIA 6411388840

Certificate GIA 6411388840

Diamond specifications and retailer prices

From $3,231 AUD
As of November 7, 2026
Save $754 AUD (19%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,709 AUD at NZ Jewellers · As of September 30, 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 L 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 6411388840. Listed at 10 retailers as of November 6, 2026, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
L
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6411388840
Dimensions7.77 × 5.52 × 3.90 mm
L/W Ratio1.41
Top View
7.77 mm5.52 mm1.50 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6411388840
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.6%

Caratlytics Score

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

Price History

Last verified: Nov 7
Current: $3,487 AUD|Low: $3,209 AUD|High: $4,635 AUD|Avg: $3,780 AUD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 4$3,209 AUD
Retailer 5$3,231 AUD
Retailer 1$3,487 AUD
Retailer 3$3,916 AUD
Retailer 2$3,985 AUD
Retailer 6$4,435 AUD

45 data points across 6 retailers

10 retailers$3,231 AUD to $3,985 AUD

Retailer 1
-
$3,209 AUD
Price last confirmed 9 days ago
Retailer 2
-
$3,209 AUD
View
Price last confirmed 30 days ago
Retailer 3
-
$3,209 AUD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
$3,231 AUD
View
Retailer 5
-
$3,358 AUD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$3,487 AUD
View
Retailer 7
-
$3,704 AUD
View
Price last confirmed 39 days ago
B+
Retailer 8
-
$3,916 AUD
View
B
Retailer 9
-
$3,985 AUD
View
Most Expensive
NZ Jewellers
c85d6d64-590f-420f-b44e-aaa38e8fd4ae · Sep 30
$6,709 AUD
$4,610 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from $3,231 AUDSave up to $754 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
$3,231 AUD