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Radiant|Natural|GIA

1.50ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 6405174570

Certificate GIA 6405174570

Diamond specifications and retailer prices

From $10,606 AUD
$7,450 USD
As of October 28, 2026
Save $13,195 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $23,801 AUD at NZ Jewellers · As of October 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6405174570. Listed at 19 retailers as of October 28, 2026, with prices from $10,606 to $23,801, a $13,195 spread on the same certified stone. NZ Jewellers lists it at $23,801. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6405174570
Dimensions7.40 × 5.69 × 3.93 mm
L/W Ratio1.30
Top View
7.40 mm5.69 mm1.50 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405174570
Side View
Table 66.0%CrownGirdle: ThinPavilionCulet: NoneDepth 68.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $23,801 AUD|Low: $10,606 AUD|High: $23,801 AUD|Avg: $15,298 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$10,606 AUD
Retailer 9$11,900 AUD
Retailer 4$12,868 AUD
Retailer 8$12,892 AUD
Retailer 7$13,090 AUD
Retailer 5$14,734 AUD
Retailer 10$14,875 AUD
Retailer 11$15,665 AUD
Retailer 3$16,964 AUD
Retailer 2$19,832 AUD
NZ Jewellers$23,801 AUD

44 data points across 11 retailers

19 retailers$10,606 AUD to $23,801 AUD

B
Cheapest Retailer
-
$10,606 AUD
$7,450 USD
B
Retailer 2
-
$11,078 AUD
$7,782 USD
View
B
Retailer 3
-
$11,123 AUD
View
B
Retailer 4
-
$11,143 AUD
$7,827 USD
View
B
Retailer 5
-
$11,608 AUD
CA$11,325 CAD
View
B
Retailer 6
-
$11,900 AUD
$8,359 USD
View
B
Retailer 7
-
$12,000 AUD
$8,429 USD
View
B
Retailer 8
-
$12,868 AUD
£7,117 GBP
View
B
Retailer 9
-
$12,892 AUD
$9,056 USD
View
B
Retailer 10
-
$13,090 AUD
$9,195 USD
View
B
Retailer 11
-
$13,686 AUD
$9,614 USD
View
B
Retailer 12
-
$14,079 AUD
$9,890 USD
View
B
Retailer 13
-
$14,079 AUD
$9,890 USD
View
C
Retailer 14
-
$14,549 AUD
$10,220 USD
View
B
Retailer 15
-
$14,734 AUD
€9,857 EUR
View
C
Retailer 16
-
$14,875 AUD
$10,449 USD
View
Retailer 17
-
$15,665 AUD
$11,004 USD
View
Price last confirmed 9 days ago
C
Retailer 18
-
$19,832 AUD
£10,969 GBP
View
Most Expensive
C
NZ Jewellers
3e09dce9-7112-43dc-a30b-d214329d63b0 · Oct 30
$23,801 AUD
$16,719 USD
View
18 more retailers have this diamond
Prices start from $10,606 AUDSave up to $13,195 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
$10,606 AUD