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Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 7543185912

Certificate GIA 7543185912

Diamond specifications and retailer prices

From $4,455 AUD
As of November 6, 2026
Save $1,055 AUD (19%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,741 AUD at NZ Jewellers · As of October 24, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7543185912. Listed at 12 retailers as of November 6, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7543185912
Dimensions7.82 × 5.81 × 3.97 mm
L/W Ratio1.35
Key to symbols
Crystal, Needle, Natural
Top View
7.82 mm5.81 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7543185912
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.2%

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: $8,741 AUD|Low: $4,389 AUD|High: $8,783 AUD|Avg: $5,736 AUD
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 12$4,455 AUD
Retailer 4$4,630 AUD
Retailer 5$4,833 AUD
Retailer 3$5,017 AUD
Retailer 11$5,017 AUD
Retailer 2$5,191 AUD
Retailer 9$5,210 AUD
Retailer 8$5,423 AUD
Retailer 6$5,510 AUD
Retailer 10$5,790 AUD
Retailer 7$8,435 AUD
NZ Jewellers$8,741 AUD

41 data points across 12 retailers

12 retailers$4,455 AUD to $5,510 AUD

A
Cheapest Retailer
-
$4,455 AUD
A
Retailer 2
-
$4,630 AUD
View
Final sale: no returns
A
Retailer 3
-
$4,833 AUD
View
Retailer 4
-
$5,017 AUD
View
Price last confirmed 13 days ago
Retailer 5
-
$5,017 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$5,191 AUD
View
Retailer 7
-
$5,210 AUD
View
Price last confirmed 13 days ago
A
Retailer 8
-
$5,423 AUD
View
A
Retailer 9
-
$5,510 AUD
View
Retailer 10
-
$5,790 AUD
View
Price last confirmed 15 days ago
Retailer 11
-
$8,435 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
e6a67cfe-fa21-4978-83ae-c39f8cb898a5 · Oct 24
$8,741 AUD
$6,006 USD
View
Price last confirmed 13 days ago
11 more retailers have this diamond
Prices start from $4,455 AUDSave up to $1,055 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
$4,455 AUD