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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1455290122

Certificate GIA 1455290122

Diamond specifications and retailer prices

From $12,892 AUD
$9,035 USD
As of November 1, 2026
Save $11,273 AUD (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $24,165 AUD at NZ Jewellers · As of November 1, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1455290122. Listed at 23 retailers as of November 1, 2026, with prices from $12,892 to $24,165, a $11,273 spread on the same certified stone. NZ Jewellers lists it at $24,165. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle36.7°
OriginNatural
Grading LabGIA
CertificateGIA 1455290122
Dimensions7.61 × 5.73 × 3.98 mm
L/W Ratio1.33
Girdle conditionPolished
Top View
7.61 mm5.73 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1455290122
Side View
Table 68.0%CrownGirdle: Very ThickPavilion 36.7°Culet: NoneDepth 69.5%

Caratlytics Score

How it works →
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: Nov 1
Current: $24,165 AUD|Low: $12,083 AUD|High: $24,165 AUD|Avg: $17,350 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$12,892 AUD
Retailer 3$14,499 AUD
Retailer 9$14,499 AUD
Retailer 4$15,661 AUD
Retailer 11$15,707 AUD
Retailer 10$15,948 AUD
Retailer 7$15,969 AUD
Retailer 2$17,434 AUD
Retailer 6$21,300 AUD
Retailer 5$22,643 AUD
NZ Jewellers$24,165 AUD

44 data points across 11 retailers

23 retailers$12,892 AUD to $24,165 AUD

B
Cheapest Retailer
-
$12,892 AUD
$9,035 USD
B
Retailer 2
-
$13,429 AUD
$9,411 USD
View
B
Retailer 3
-
$13,453 AUD
$9,428 USD
View
B
Retailer 4
-
$13,605 AUD
View
B
Retailer 5
-
$13,848 AUD
CA$13,479 CAD
View
B
Retailer 6
-
$14,333 AUD
$10,045 USD
View
B
Retailer 7
-
$14,499 AUD
$10,161 USD
View
B
Retailer 8
-
$14,499 AUD
$10,161 USD
View
Final sale: no returns
B
Retailer 9
-
$14,620 AUD
$10,246 USD
View
B
Retailer 10
-
$15,661 AUD
£8,642 GBP
View
B
Retailer 11
-
$15,707 AUD
$11,008 USD
View
B
Retailer 12
-
$15,948 AUD
$11,177 USD
View
Retailer 13
-
$15,969 AUD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$16,740 AUD
$11,732 USD
View
B
Retailer 15
-
$16,980 AUD
$11,900 USD
View
B
Retailer 16
-
$16,980 AUD
$11,900 USD
View
B
Retailer 17
-
$17,434 AUD
€11,636 EUR
View
B
Retailer 18
-
$17,551 AUD
$12,300 USD
View
B
Retailer 19
-
$18,123 AUD
$12,701 USD
View
Retailer 20
-
$19,076 AUD
$13,369 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$21,300 AUD
ZAR 241,159 ZAR
View
B
Retailer 22
-
$22,643 AUD
£12,495 GBP
View
Most Expensive
C
NZ Jewellers
33aebb21-a78c-4d06-b3fd-36e64ca466cd · Oct 30
$24,165 AUD
$16,935 USD
View
22 more retailers have this diamond
Prices start from $12,892 AUDSave up to $11,273 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
$12,892 AUD