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Round|Natural|GIA

1.50ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 2538705029

Certificate GIA 2538705029

Diamond specifications and retailer prices

From $3,400 AUD
As of November 1, 2026
Save $1,964 AUD (37%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,795 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2538705029. Listed at 12 retailers as of November 1, 2026, with a 58% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2538705029
Dimensions7.20 × 7.27 × 4.59 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
7.20 mm7.27 mm1.50 ctL / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2538705029
Side View
Table 55.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 63.5%

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 1
Current: $4,224 AUD|Low: $3,383 AUD|High: $5,364 AUD|Avg: $4,296 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$3,400 AUD
Retailer 4$3,621 AUD
Retailer 1$4,224 AUD
Retailer 6$4,528 AUD
Retailer 2$4,750 AUD
Retailer 3$5,364 AUD

45 data points across 6 retailers

12 retailers$3,400 AUD to $5,364 AUD

A
Cheapest Retailer
-
$3,400 AUD
A
Retailer 2
-
$3,621 AUD
View
B+
Retailer 3
-
$4,180 AUD
View
B+
Retailer 4
-
$4,224 AUD
View
Retailer 5
-
$4,474 AUD
View
Price last confirmed 21 days ago
Retailer 6
-
$4,474 AUD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$4,528 AUD
View
Retailer 8
-
$4,647 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$4,750 AUD
View
Retailer 10
-
$5,163 AUD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$5,364 AUD
View
Most Expensive
NZ Jewellers
d1d014fc-485c-4672-aeed-6cc2cfaf6d52 · Oct 17
$7,795 AUD
$5,457 USD
View
Price last confirmed 19 days ago
11 more retailers have this diamond
Prices start from $3,400 AUDSave up to $1,964 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 Round
$3,400 AUD