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Round|Natural|GIA

1.50ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 2554908678

Certificate GIA 2554908678

Diamond specifications and retailer prices

From $3,474 AUD
As of November 6, 2026
Save $1,897 AUD (35%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,045 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 2554908678. Listed at 12 retailers as of November 5, 2026, with a 55% 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554908678
Dimensions7.26 × 7.32 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Needle, Pinpoint, Natural
Top View
7.26 mm7.32 mm1.50 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554908678
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

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: $4,748 AUD|Low: $3,456 AUD|High: $5,407 AUD|Avg: $4,331 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$3,474 AUD
Retailer 2$3,681 AUD
Retailer 1$4,748 AUD
Retailer 3$5,371 AUD

41 data points across 4 retailers

12 retailers$3,474 AUD to $5,371 AUD

A
Cheapest Retailer
-
$3,474 AUD
A
Retailer 2
-
$3,681 AUD
View
B+
Retailer 3
-
$4,271 AUD
View
B+
Retailer 4
-
$4,547 AUD
View
Retailer 5
-
$4,618 AUD
View
Price last confirmed 21 days ago
Retailer 6
-
$4,618 AUD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$4,748 AUD
View
Retailer 8
-
$4,795 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$4,823 AUD
View
Retailer 10
-
$5,328 AUD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$5,371 AUD
View
Most Expensive
NZ Jewellers
bddd0141-f913-40e1-a2ec-ff31f628d451 · Oct 17
$8,045 AUD
$5,632 USD
View
Price last confirmed 19 days ago
11 more retailers have this diamond
Prices start from $3,474 AUDSave up to $1,897 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
$3,474 AUD